| Search Help New search |
| Results 4001-4100 of 5605 for « +text:blue » |
| 21% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
from its brilliant gem-like colours. When freshly taken from the sea the body is yellow of various shades, striped and spotted with vivid blue on the head; the dorsal fins are pale brown with dark longitudinal bands; the ventral, caudal and anal fins being bluish-black. The female, or sordid dragonet, was considered by Linn us and by many subsequent naturalists as a distinct species; it is of a dingy reddish-brown, with the dorsal fin brown and the other fins white. The sexes differ also in
|
| 21% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
leucoph us) the females and young are much paler-coloured, with less green, than the adult males. No other member of the whole class of mammals is coloured in so extraordinary a manner as the adult male mandrill (Cynocephalus mormon). The face at this age becomes of a fine blue, with the ridge and tip of the nose of the most brilliant red. According to some authors the face is also marked with whitish stripes, and is shaded in parts with black, but the colours appear to be variable. On the
|
| 21% |
F937.1
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 1.
Text
Image
PDF
characters are usually transferred in an equal degree to both sexes) varied into pale blue; could he by long-continued selection make a breed, in which the males alone should be of this tint, whilst the females remained unchanged? I will here only say, that this, though perhaps not impossible, would be extremely difficult; for the natural result of breeding from the pale-blue males would be [page] 28
|
| 21% |
F937.1
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 1.
Text
Image
PDF
blue, and black; but as throughout the Order the two sexes rarely differ much in colour, it is doubtful whether they owe these bright tints to sexual selection. Conspicuous colours may be of use to these insects as a protection, on the principle to be explained in the next chapter, by giving notice to their enemies that they are unpalatable. Thus it has been observed44 that an Indian brightly-coloured locust was invariably rejected when offered to birds and lizards. Some cases, however, of
|
| 21% |
F937.1
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 1.
Text
Image
PDF
with almost the whole surface glossed with satiny blue, and she closely imitates the Eupl a midamus, one of the commonest butterflies of the East; whilst the male is bronzy or olive-brown, with only a slight blue gloss on the outer parts of the wings.28 Both sexes of this Diadema and of D. bolina follow the same habits of life, so that the differences in colour between the sexes cannot be accounted for by exposure to different conditions;29 even if this explanation were admissible in other
|
| 21% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
throat-pouch; and this is splendidly tinted with blue, black, and red. In the Proctotretus tenuis of Chile the male alone is marked with spots of blue, green, and coppery-red.58 I collected in S. America fourteen species of this genus, and though I neglected to record the sexes, I observed that certain individuals alone were marked with emerald-like green spots, whilst others had orange-coloured gorges; and these in both cases no doubt were the males. In the foregoing species, the males are
|
| 21% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
are decorated in a different manner by the several species. The Satin bower-bird collects gaily-coloured articles, such as the blue tail-feathers of parrakeets, bleached bones and shells, which it sticks between the twigs, or arranges at the entrance. Mr. Gould found in one bower a neatly-worked stone tomahawk and a slip of blue cotton, evidently procured from a native encampment. These objects are continually rearranged, and carried about by the birds whilst at play. The bower of the Spotted
|
| 21% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
domestic fowl and pigeon. The barbs coalesce towards the extremity of the shaft to form the oval disc or ocellus, which is certainly one of the most beautiful objects in the world. This consists of an iridescent, intensely blue, indented centre, surrounded by a rich green zone, and this by a broad coppery-brown zone, and this by five other narrow zones of slightly-different iridescent shades. A trifling character in the disc perhaps deserves notice; the barbs, for a space along one of the
|
| 21% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
the spring the males, as previously described, strut about before the comparatively plain-coloured females, expanding and erecting their tail and wing-feathers, which are ornamented with numerous ocelli. I request the reader to turn back to the drawing (fig. 51, p. 90) of a Polyplectron. In P. Napoleonis the ocelli are confined to the tail, and the back is of a rich metallic blue, in which respects this species approaches the Java peacock. P. Hardwickii possesses a peculiar top-knot, somewhat
|
| 21% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
instance, the male of the red-throated bluebreast (Cyanecula suecica) has a rich blue breast, including a sub-triangular red mark; now marks of approximately the same shape have been transferred to the female, but the central space is fulvous instead of red, and is surrounded by mottled instead of blue feathers. The Gallinace offer many analogous cases; for none of the species, such as partridges, quails, guinea-fowls, c., in which the colours of the plumage have been largely transferred from
|
| 21% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
, as the main wing-feathers, which are not moulted so soon as the body-feathers, retain a brownish tint until the second general moult.46 The two sexes of the mocking bird (Turdus polyglottus, Linn.) differ very little from each other, yet the males can easily be distinguished at a very early age from the females by shewing more pure white.47 The males of a forest-thrush and of a rock-thrush (viz. Orocetes erythrogastra and Petrocincla cyanea) have much of their plumage of a fine blue, whilst the
|
| 18% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
-season of a peculiar sound resembling ock. The bird whilst uttering this sound throws himself into the most extraordinary attitudes. It is a singular fact that with the males of the same species the sack is not developed in all the individuals43 A crow-like bird inhabiting South America (Cephalopterus ornatus, fig. 40) is called the umbrella-bird, from its immense top-knot, formed of bare white quills surmounted by dark-blue plumes, which it can elevate into a great dome no less than five inches in
|
| 18% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
, for pigeons almost always build open and exposed nests. In another large family, that of the Humming-birds, all the species build open nests, yet with some of the most gorgeous species the sexes are alike; and in the majority, the females, though less brilliant than the males, are very brightly coloured. Nor can it be maintained that all female humming-birds, which are brightly coloured, escape detection by their tints being green, for some display on their upper surfaces red, blue, and other
|
| 18% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
the same time, but breeds before acquiring its full plumage (vol. iii. p. 211). The adults of Ardea c rulea are blue and the young white; and white, mottled, and mature blue birds may all be seen breeding together (vol. iv. p. 58): but Mr. Blyth informs me that certain herons apparently are dimorphic, for white and coloured individuals of the same age may be observed. The Harlequin duck (Anas histrionica, Linn.) takes three years to acquire its full plumage, though many birds breed in the second
|
| 18% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
edged with brown.48 So that the very same feathers which in the young blackbird assume their mature character and become black after the others, in these two species assume this character and become blue before the others. The most probable view with reference to these cases is that the males, differently from what occurs in Class I., have transmitted their colours to their male offspring at an earlier age than that at which they themselves first acquired them; for if they had varied whilst
|
| 17% |
A1026
Periodical contribution:
Fraser, George. 1871. Sexual Selection. Nature. A Weekly Illustrated Journal of Science (20 April): 489.
Text
Image
PDF
the blue and in the females the brown of the upper surface forms the background of the spotty design. The blue blood is very strong in these butterflies, and will show itself sometimes even in the females; who, if powerless over their own decoration, have at least succeeded in bringing out the innate splendour of their handsome husbands. With the blues, as with the cabbage butterflies, the under surface of the hind wings seems specially adapted for protective purposes; every butterfly-hunter
|
| 17% |
F937.1
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 1.
Text
Image
PDF
which the sexes differ, are coloured more richly than the males; and this does not accord with the common rule in regard to colour when acquired through sexual selection. Fig. 15. Chalcosoma atlas. Upper figure, male (reduced); lower figure, female (nat. size). trichia and Trichius, the male of the latter being more obscurely coloured than the female. In Tillus elongatus the male is black, and the female always, as it is believed, of a dark blue colour with a red thorax. The male, also, of
|
| 15% |
The Complete Work of Charles Darwin Online [7] Times of opening p. A. albumen g on the 9th — opened 22d — 13 days — torpid P p. B Black wool albumen g. — July 11. — opened 23' 12 days do. P p. B Brown Blue w. cheese albumen, — July 17th 23th — cheese end opened P ie 6 days — albumen red (p. CCC.) opened evening of same day. P p B Casein July 18th — 26' 8 days P p. C.C Yellow brown. — cheese albumen July 17th — 26 end with cheese opened in 9 days — 28th end with albumen in 11 days P p CC. cube
|
| 15% |
F2108
Book contribution:
Fiske, John. 1917. [Recollections of Darwin and letters to John Fiske, 1871-80]. In Spencer Clark, John ed. The life and letters of John Fiske. 2 vols. New York: Houghton Mifflin, vol. 1, pp. 481-82, 477, vol. 2, pp. 133-34.
Text
Huxley. He has a mild blue eye, and is the gentlest of gentle old fellows. I think he would make a noble picture after the style of mother's picture which I call Galileo. His long white hair and enormous beard make him very picturesque. And what is so delightful to see, as that perfect frankness and guileless simplicity of manner, which comes from a man having devoted his whole life to some great idea, without a thought of self, and without ever having become a man of the world ? I had a warm
|
| 15% |
F937.1
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 1.
Text
Image
PDF
line; whilst two other species were attracted by shining white colours. It is an interesting fact, first observed by Schelver, that the males, in several genera belonging to two sub-families, when they first emerge from the pupal state are coloured exactly like the females; but that their bodies in a short time assume a conspicuous milky-blue tint, owing to the exudation of a kind of oil, soluble in ether and alcohol. Mr. MacLachIan believes that in the male of Libellula depressa this change
|
| 15% |
F937.1
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 1.
Text
Image
PDF
the solitary species, as I hear from the same distinguished entomologist, the sexes often differ in colour. The males are generally the brightest, and in Bombus as well as in Apathus, much more variable in colour than the females. In Anthophora retusa the male is of a rich fulvous-brown, whilst the female is quite black: so are the females of several species of Xylocopa, the males being bright yellow. In an Australian bee (Lestis bombylans), the female is of an extremely brilliant steel-blue
|
| 15% |
F937.1
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 1.
Text
Image
PDF
that in Guen e's great work, three moths are figured, in which the under surface is much the most brilliant. For instance, in the Australian Gastrophora the upper surface of the fore-wing is pale greyish-ochreous, while the lower surface is magnificently ornamented by an ocellus of cobalt-blue, placed in the midst of a black mark, surrounded by orange-yellow, and this by bluish-white. But the habits of these three moths are unknown; so that no explanation can be given of their unusual style of
|
| 15% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
Sitana, the males alone are furnished with a large throat-pouch (fig. 33), which can be folded up like a fan, and is coloured blue, black, and red; but these splendid colours are exhibited only during the pairing-season. The female does not possess even a rudiment of this appendage. In the Anolis cristatellus, according to Mr. Austen, the throat-pouch, which is bright red marbled with yellow, is present, though in a rudimental condition, in the female. Again, in certain other lizards, both
|
| 15% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
for musical sounds as they apparently have for colour, judging by the inharmonious contrast of their bright yellow and blue plumage? It is indeed possible that the loud voices of many male birds may be the result, without any advantage being thus gained, of the inherited effects of the continued use of their vocal organs, when they are excited by the strong passions of love, jealousy, and rage; but to this point we shall recur when we treat of quadrupeds. We have as yet spoken only of the voice
|
| 15% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
ornaments, though not always ornamental in our eyes; for whilst the male is in the act of courting the female, they often swell and assume more vivid tints, as in the case of the male turkey. At such times the fleshy appendages about the head of the male Tragopan pheasant (Ceriornis temminckii) swell into a large lappet on the throat and into two horns, one on each side of the splendid top-knot; and these are then coloured of the most intense blue which I have ever beheld. The African hornbill
|
| 15% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
and barred wing-feathers, and altogether, with his gorged crimson and blue wattles, makes a superb, though, to our eyes, grotesque appearance. Similar facts have already been given with respect to grouse of various kinds. Turning to another Order. The male Rupicola crocea (fig. 50) is one of the most beautiful birds in the world, being of a splendid orange, with some of the feathers curiously truncated and plumose. The female is brownish-green, shaded with red, and has a much smaller crest. Sir R
|
| 15% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
two or three black dots with a surrounding dark zone. But the chief ornament is a space parallel to the dark-blue shaft, which in outline forms a perfect second feather lying within the true feather. This inner part is coloured of a lighter chesnut, and is thickly dotted with minute white points. I have shewn this feather to several persons, and many have admired it even more than the ball-and-socket feathers, and have declared that it was more like a work of art than of nature. Now these
|
| 15% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
and bows his black tail from side to side in a ludicrous manner. The male chaffinch also stands in front of the female, thus shewing his red breast, and blue bell, as the fanciers call his head; the wings at the same time being slightly expanded, with the pure white bands on the shoulders thus rendered conspicuous. The common linnet distends [page] 95 DISPLAY BY THE MALE. CHAP. XIII
|
| 15% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
Mr. Ramsay, ornaments its short bower with bleached land-shells belonging to five or six species, and with berries of various colours, blue, red, and black, which give it when fresh a very pretty appearance. Besides these there were several newly-picked leaves and young shoots of a pinkish colour, the whole shewing a decided taste for the beautiful. Well may Mr. Gould say these highly decorated halls of assembly must be regarded as the most wonderful instances of bird-architecture yet
|
| 15% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
pugnacious disposition, as the same writer informs me, dislike strange males, and will not yield until well beaten into compliance. Ferguson, however, describes how a quarrelsome hen was subdued by the gentle courtship of a Shanghai cock.20 There is reason to believe that pigeons of both sexes prefer pairing with birds of the same breed; and dove-cot-pigeons dislike all the highly improved breeds.21 Mr. Harrison Weir has lately heard from a trustworthy observer, who keeps blue pigeons, that these drive
|
| 15% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
having the whole of the feathers blue, while others have the eight central ones tipped with beautiful green. It does not appear that intermediate gradations have been observed in this or the following cases. In the males alone of one of the Australian parrakeets the thighs in some are scarlet, in others grass-green. In another parrakeet of the same country some individuals have the band across the wing-coverts bright-yellow, while in others the same part is tinged with red. 34 In the United
|
| 15% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
outer webs of the two outer tail-feathers white; now there is a sub-variety having a white instead of a blue tail, with precisely that small part black which is white in the parent-species.44 Formation and variability of the Ocelli or eye-like Spots on the Plumage of Birds. As no ornaments are more beautiful than the ocelli on the feathers of various birds, on the hairy coats of some mammals, on the scales of reptiles and fishes, on the skin of amphibians, on the wings of many Lepidoptera and
|
| 15% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
of the Monticola cyanea is conspicuous from his bright blue colour, and the female almost equally conspicuous from her mottled brown and white plumage; both sexes of two species of Dromol a are of a lustrous black; so that these three birds are far from receiving protection from their colours, yet they are able to survive, for they have acquired the habit, when in danger, of taking refuge in holes or crevices in the rocks. With respect to the above-specified groups of birds, in which the females
|
| 15% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
species, the sexes differ so much that they were at first thought to be specifically distinct.21 Mr. R. B. Sharpe, who has especially studied this group, has shewn me some American species (Ceryle) in which the breast of the male is belted with black. Again, in Carcineutes, the difference between the sexes is conspicuous: in the male the upper surface is dull-blue banded with black, the lower surface being partly fawn-coloured, and there is much red about the head; in the female the upper surface
|
| 15% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
, blue, and orange tints, which can hardly be protective. Woodpeckers are eminently arboreal, but, besides green species, there are many black, and black-and-white kinds all the species being apparently exposed to 50 'Westminster Review,' July, 1867, p. 5. [page] 224 SEXUAL SELECTION: BIRDS. PART II
|
| 15% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
exception, delicate blue being the prevailing tint in those parts of the female, which in the male are red. 19 In the Didelphis opossum of Cayenne the female is said to be a little more red than the male. With Rodents Dr. Gray remarks: African squirrels, especially those found in the tropical regions, have the fur much brighter and more vivid at some seasons of the year than at others, and the fur of the male is generally brighter than that of the female. 20 Dr. Gray informs me that he specified
|
| 15% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
great canine teeth are fully developed, immense protuberances of bone are formed on each cheek, which are deeply furrowed longitudinally, and the naked skin over them is brilliantly-coloured, as just described. (Fig. 67.) In the adult females and in the young of both sexes these protuberances are scarcely perceptible; and the naked parts are much less brightly coloured, the face being almost black, tinged with blue. In the adult female, however, the nose at certain regular intervals of time
|
| 15% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
beautiful is not widely different from that of the Quadrumana. As the negro of Africa raises the flesh on his face into parallel ridges or cicatrices, high above the natural surface, which unsightly deformities, are considered great personal attractions; 34mdash;as negroes, as well as savages in many parts of the world, paint their faces with red, blue, white, or black bars, so the male mandrill of Africa appears to have acquired his deeply-furrowed and gaudily-coloured face from having been
|
| 15% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
until the animal is nearly mature.45 The naked skin of the face differs wonderfully in colour in the various species. It is often brown or flesh-colour, with parts perfectly white, and often as black as that of the most sooty negro. In the Brachyurus the scarlet tint is brighter than that of the most blushing Caucasian damsel. It is sometimes more distinctly orange than in any Mongolian, and in several species it is blue, passing into violet or grey. In all the species known to Mr. Bartlett
|
| 15% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
, blue, yellow, and green colours, so common with male birds and many other animals. The naked parts, however, of certain Quadrumana must be excepted; for such parts, often oddly situated, are coloured in some species in the most brilliant manner. The colours of the male in other cases may be due to simple variation, [page] 314 SEXUAL SELECTION: MAMMALS. PART II
|
| 15% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
fertile imagination and the most mutable caprice have created the fashions of painting, as well as those of garments. In one part of Africa the eyelids are coloured black; in another the nails are coloured yellow or purple. In many places the hair is dyed of various tints. In different countries the teeth are stained black, red, blue, c., and in the Malay Archipelago it is thought shameful to have white teeth like those of a dog. Not one great country can be named, from the Polar regions in the north
|
| 15% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
in miniature, is almost ludicrous. The colour of the face differs much more widely in the various kinds of monkeys than it does in the races of man; and we have good reason to believe that the red, blue, orange, almost white and black tints of their skin, even when common to both sexes, and the bright colours of their fur, as well as the ornamental tufts of hair about the head, have all been acquired through sexual selection. As the newly-born infants of the most distinct races do not differ
|
| 13% |
F2104
Periodical contribution:
Darwin, C. R. 1882. [Letters to Riley, 1871, 1881 and recollections of Darwin]. In Charles Valentine Riley, Darwin's work in entomology. Proceedings of the Biological Society of Washington DC 1: 70-80, pp. 77-80.
Text
PDF
his health and his researches. Upon introduction I was at once struck with his stature (which was much above the average, and I should say fully six feet,) his ponderous brow and long white beard—the moustache being cut on a line with the lips and slightly brown from the habit of snuff-taking. His deep-set eyes were light blue-gray. He made the impression of a powerful man reduced somewhat by sickness. The massive brow and forehead show in his later photographs, but not so conspicuously as in a
|
| 13% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
not seen this fish during the spawning-season, when its hues are brightest, to conceive the admixture of brilliant colours with which it, in other respects so ill-favoured, is at that time adorned. Both sexes of the Labrus mixtus, although very different in colour, are beautiful; the male being orange with bright-blue stripes, and the female bright-red with some black spots on the back. In the very distinct family of the Cyprinodontid inhabitants of the fresh waters of foreign lands the sexes
|
| 13% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
orange plumes which spring from beneath the wings of the Paradisea apoda (see fig. 47 of P. rubra, a much less beautiful species), when vertically erected and made to vibrate, are described as forming a sort of halo, in the centre of which the head looks like a little emerald sun with its rays formed by the two plumes. 68 In another most beautiful species the head is bald, and of a rich cobalt blue, crossed by several lines of black velvety feathers. 69 Male humming-birds (figs. 48 and 49
|
| 13% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
train. Now when the peacock displays himself, he expands and erects his tail transversely to his body, for he stands in front of the female, and has to shew off, at the same time, his rich blue throat and breast. But the breast of the Polyplectron is obscurely coloured, and the ocelli are not confined to the tail-feathers. Consequently the Polyplectron does not stand in front of the female; but he erects and expands his tail-feathers a little obliquely, 83 'Annals and Mag. of Nat. Hist.' vol
|
| 13% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
the birds in this way; but even to our eyes, the beauty of the glossy black Spanish cock is much enhanced by his white face and crimson comb; and no one who has ever seen the splendid blue wattles of the male Tragopan pheasant, when distended during the act of courtship, can for a moment doubt that beauty is the object gained. From the foregoing facts we clearly see that the plumes and other ornaments of the male must be of the highest importance to him; and we further see that beauty in some
|
| 13% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
. So again the female Falco peregrinus acquires her blue plumage more slowly than the male. Mr. Swinhoe states that with one of the Drongo shrikes (Dicrurus macrocercus) the male whilst almost a nestling, moults his soft brown plumage and becomes of a uniform glossy greenish-black; but the female retains for a long time the white stri and spots on the axillary feathers; and does not completely assume the uniform black colour of the male for the first three years. The same excellent observer
|
| 13% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
, however, the young male, though resembling the adult female, is less brilliantly coloured. In some species of Dacelo the males have blue tails, and the females brown ones; and Mr. R. B. Sharpe informs me that the tail of the young male of D. Gaudichaudi is at first brown. Mr. Gould has described (ibid. vol. ii. p. 14, 20, 37) the sexes and the young of certain Black Cockatoos and of the King Lory, with which the same rule prevails. Also Jerdon ('Birds of India,' vol. i. p. 260) on the Pal
|
| 13% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
of some parrots can hardly be said to be more beautiful, at least according to our taste, than the females, but they differ from them in such points, as the male having a rose-coloured collar instead of, as in the female, a bright emeraldine narrow green collar; or in the male having a black collar instead of a yellow demi-collar in front, with a pale roseate instead of a plum-blue head.57 As so many male birds have for their chief ornament elongated tail-feathers or elongated crests, the
|
| 13% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
, changes colour. The importance of this latter fact, as distinctive of sexual colouring, becomes obvious, when we hear24 that neither the red summer-coat nor the blue winter-coat of the Virginian deer is at all affected by emasculation. With most or all of the highly-ornamented species of Tragelaphus the males are darker than the hornless females, and their crests of hair are more fully developed. In the male of that magnificent antelope, the Derbyan Eland, the body is redder, the whole neck much
|
| 13% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
exclusively confined to the blue 26 On the Ant. niger, see 'Proc. Zool. Soc.' 1850, p. 133. With respect to an allied species, in which there is an equal sexual difference in colour, see Sir S. Baker, 'The Albert Nyanza,' 1866, vol. ii. p. 327. For the A. sing-sing, Gray, 'Cat. B. Mus.' p. 100. Desmarest, 'Mammalogie,' p. 468, on the A. caama. Andrew Smith, 'Zoology of S. Africa,' on the Gnu. VOL. II. U [page] 290 SEXUAL SELECTION: MAMMALS. PART II
|
| 13% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
figures given by Solomon M ller, the male of Semnopithecus chrysomelas is nearly black, the female being pale brown. In the Cercopithecus cynosurus and griseo-viridis one part of the body which is confined to the male sex is of the most brilliant blue or green, and contrasts strikingly with the naked skin on the hinder part of the body, which is vivid red. Lastly, in the Baboon family, the adult male of Cynocephalus hamadryas differs from the female not only by his immense mane, but slightly in
|
| 13% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
cannot be detected in the infantile skull.4 In regard to colour, the new-born negro child is reddish nut-brown, which soon becomes slaty-grey; the black colour being fully developed within a year in the Sudan, but not until three years in Egypt. The eyes of the negro are at first blue, and the hair chesnut-brown rather than black, being curled only at the ends. The children of the Australians immediately after birth are yellowish-brown, and become dark at a later age. Those of the Guaranys of
|
| 10% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
. TITS, sexual difference of colour in, ii. 174. TOADS, ii. 25; male, treatment of ova by some. i. 210; male, ready to breed before the female, i. 260. TOE, great, condition of, in the human embryo, i. 17. TOMTIT, blue, sexual difference of colour in the, ii. 174. TONGA Islands, beardlessness of the natives of, ii. 322, 349. TOOKE, Horne, on language, i. 55. TOOLS, flint, i. 183; used by monkeys, i. 51; use of, i. 137. TOPKNOTS in birds, ii. 74. Tomicus villosus, proportion of the sexes in, i
|
| 10% |
F937.2
Book:
Darwin, C. R. 1871. The descent of man, and selection in relation to sex. London: John Murray. vol. 2.
Text
Image
PDF
; assemblies of, ii. 101. WEBB, Dr., on the wisdom teeth, i. 25. WEDGWOOD, Hensleigh, on the origin of language, i. 56. WEEVILS, sexual difference in length of snout in some, i. 255. WEIR, Harrison, on the numerical proportion of the sexes in pigs and rabbits, i. 305; on the sexes of young pigeons, i. 306; on the songs of birds, ii. 52; on pigeons, ii. 109; on the dislike of blue pigeons to other coloured varieties, ii. 118; on the desertion of their mates by female pigeons, ii. 119. WEIR, J. Jenner, on
|
| 15% |
LINSOC-SP.1250
Correspondence:
Darwin Charles Robert
1871.03.11
In accordance with the request of the Council I have carefully considered Mr Mansel Weale's four papers
Text
extracts relating to the contraction of the elastic caudicle of the pollinium when freed from the anther-case, on the caudicle of another species being shortened by being permanently folded. I have marked with blue lines the few passages which seem to me worth publishing. The illustrations in this the 3 following papers are not clear; they are not indispensable would be expensive to engrave, so that I think they may be all omitted. The paper on Disperis (1792) is short may be printed in extenso, as it
|
| 13% |
A270
Review:
Wallace, Alfred Russel. 1871. The Descent of Man and Selection in Relation to Sex. By Charles Darwin, M.A., F.R.S., &c. In two volumes with illustrations. John Murray, 1871. The Academy 2, no. 20 (15 March): 177-183.
Text
circumstances, it would be exceedingly difficult for natural selection to change the male alone, and he gives an imaginary illustration to exhibit this difficulty. He supposes a fancier to wish to make a breed of pigeons in which the males should be pale blue, the females remaining the usual slaty colour; and he says, "All that he could do would be to persevere in selecting every male pigeon which was in the least degree of a paler blue," and to match these with slaty females, the result being
|
| 17% |
the males the blue and in the females the brown of the upper surface forms the background of the spotty design. The blue blood is very strong in these butterflies, and will show itself sometimes even in the females; who, if powerless over their own decoration, have at least succeeded in bringing out the innate splendour of their handsome husbands. With the blues, as with the cabbage butterflies, the under surface of the hind wings seems specially adapted for protective purposes; every butterfly
|
| 24% |
CUL-DAR88.145
Note:
1871.04.23
Limited Inheritance after reading Wallace / If any tendency to transmit
Text
Image
Darwin, C. R. Limited Inheritance after reading Wallace / If any tendency to transmit . (4.1871) CUL-DAR88.145 Edited by John van Wyhe (The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/) 145 Mar 23/ 71. Limited Inheritance, after reading Wallace. — If any tendency to transmit blue tint to ♂s alone, this wd be increased by selection by granting their descendants, who thus transmitted blueness in greater number.— But a similar tendency is requisite for each successive
|
| 34% |
Sunday, 22 December 1872 came home Monday, 23 December 1872 Tuesday, 24 December 1872 Litches came [Litchfields] Wednesday, 25 December 1872 fine Thursday, 26 December 1872 attack of sickness fine Friday, 27 December 1872 came down F. Balfour Saturday, 28 December 1872 fine went out Blue pill December 187
|
| 26% |
CUL-DAR88.160
Abstract:
[1872--1874]
`Proceedings of the Zoological Society of London' 1872: 496, 730
Text
Image
The Complete Work of Charles Darwin Online [160] 1872 p. 496 on ♀ Turdus acquiring ♂ plumage later in life than ♂ [Sharpe, Richard Bowdler. 1872. [Blue rock-thrushes exhibited]. Proceedings of the Zoological Society of London 40 no. 2: 496. [CUL-DAR.LIB.PER-U1399] PDF] p. 730 Murie on cranial ornamental appendages of ♂ Tragopan. [Murie, James. 1873. On the cranial appendages and wattles of the Horned Tragopan. Proceedings of the Zoological Society of London 40 no. 2: 730-736, pls. LX-LXI. [CUL
|
| 22% |
F391
Book:
Darwin, C. R. 1872. The origin of species by means of natural selection, or the preservation of favoured races in the struggle for life. London: John Murray. 6th ed.; with additions and corrections. Eleventh thousand.
Text
Image
PDF
example what is meant: if in a large genus of plants some species had blue flowers and some had red, the colour would be only a specific character, and no one would be surprised at one of the blue species varying into red, or conversely; but if all the species had blue flowers, the colour would become a generic character, and its variation would be a more unusual circumstance. I have chosen this example because the explanation which most naturalists would advance is not here applicable, namely, that
|
| 18% |
F391
Book:
Darwin, C. R. 1872. The origin of species by means of natural selection, or the preservation of favoured races in the struggle for life. London: John Murray. 6th ed.; with additions and corrections. Eleventh thousand.
Text
Image
PDF
pigeons well deserve consideration. The rock pigeon is of a slaty-blue, with white loins; but the Indian sub-species, C. intermedia of Strickland, has this part bluish. The tail has a terminal dark bar, with the outer feathers externally edged at the base with white. The wings have two black bars. Some semi-domestic breeds, and some truly wild breeds, have, besides the two black bars, the wings chequered with black. These several marks do not occur together in any other species of the whole family
|
| 18% |
F391
Book:
Darwin, C. R. 1872. The origin of species by means of natural selection, or the preservation of favoured races in the struggle for life. London: John Murray. 6th ed.; with additions and corrections. Eleventh thousand.
Text
Image
PDF
pigeon, I presume that no one will doubt that this is a case of reversion, and not of a new yet analogous variation appearing in the several breeds. We may, I think, confidently come to this conclusion, because, as we have seen, these coloured marks are eminently liable to appear in the crossed offspring of two distinct and differently coloured breeds; and in this case there is nothing in the external conditions of life to cause the reappearance of the slaty-blue, with the several marks
|
| 15% |
F391
Book:
Darwin, C. R. 1872. The origin of species by means of natural selection, or the preservation of favoured races in the struggle for life. London: John Murray. 6th ed.; with additions and corrections. Eleventh thousand.
Text
Image
PDF
analogous characters. If, for instance, we did not know that the parent rock-pigeon was not feather-footed or turn-crowned, we could not have told, whether such characters in our domestic breeds were reversions or only analogous variations; but we might have inferred that the blue colour was a case of reversion from the number of the markings, which are correlated with this tint, and which would not probably have all appeared together from simple variation. More especially we might have inferred this
|
| 13% |
F391
Book:
Darwin, C. R. 1872. The origin of species by means of natural selection, or the preservation of favoured races in the struggle for life. London: John Murray. 6th ed.; with additions and corrections. Eleventh thousand.
Text
Image
PDF
quite whimsical; thus cats which are entirely white and have blue eyes are generally deaf; but it has been lately stated by Mr. Tait that this is confined to the males. Colour and constitutional peculiarities go together, of which many remarkable cases could be given amongst animals and plants. From facts collected by Heusinger, it appears that white sheep and pigs are injured by certain plants, whilst dark-coloured individuals escape: Professor Wyman has recently communicated to me a good
|
| 13% |
F391
Book:
Darwin, C. R. 1872. The origin of species by means of natural selection, or the preservation of favoured races in the struggle for life. London: John Murray. 6th ed.; with additions and corrections. Eleventh thousand.
Text
Image
PDF
like manner, but to three separate yet closely related acts of creation. Many similar cases of analogous variation have been observed by Naudin in the great gourd-family, and by various authors in our cereals. Similar cases occurring with insects under natural conditions have lately been discussed with much ability by Mr. Walsh, who has grouped them under his law of Equable Variability. With pigeons, however, we have another case, namely, the occasional appearance in all the breeds, of slaty-blue
|
| 13% |
F391
Book:
Darwin, C. R. 1872. The origin of species by means of natural selection, or the preservation of favoured races in the struggle for life. London: John Murray. 6th ed.; with additions and corrections. Eleventh thousand.
Text
Image
PDF
fertile offspring. With some exceptions, presently to be given, I fully admit that this is the rule. But the subject is surrounded by difficulties, for, looking to varieties produced under nature, if two forms hitherto reputed to be varieties be found in any degree sterile together, they are at once ranked by most naturalists as species. For instance, the blue and red pimpernel, which are considered by most botanists as varieties, are said by Gärtner to be quite sterile when crossed, and he
|
| 13% |
F391
Book:
Darwin, C. R. 1872. The origin of species by means of natural selection, or the preservation of favoured races in the struggle for life. London: John Murray. 6th ed.; with additions and corrections. Eleventh thousand.
Text
Image
PDF
is not accumulating. We probably take a quite erroneous view, when we assume that sediment is being deposited over nearly the whole bed of the sea, at a rate sufficiently quick to embed and preserve fossil remains. Throughout an enormously large proportion of the ocean, the bright blue tint of the water bespeaks its purity. The many cases on record of a formation conformably covered, after an immense interval of time, by another and later formation, without the underlying bed having suffered in
|
| 13% |
F391
Book:
Darwin, C. R. 1872. The origin of species by means of natural selection, or the preservation of favoured races in the struggle for life. London: John Murray. 6th ed.; with additions and corrections. Eleventh thousand.
Text
Image
PDF
, 347. Carpenter, Dr., on foraminifera, 308. Carthamus, 173. Catasetum, 155, 372. Cats, with blue eyes, deaf, 9. ——, variation in habits of, 209. —— curling tail when going to spring, 162. Cattle destroying fir-trees, 56. —— destroyed by flies in Paraguay, 56. [page] 44
|
| 13% |
F391
Book:
Darwin, C. R. 1872. The origin of species by means of natural selection, or the preservation of favoured races in the struggle for life. London: John Murray. 6th ed.; with additions and corrections. Eleventh thousand.
Text
Image
PDF
succession of genera, 293. ——, on change in latest tertiary forms, 278. ——, on close alliance of fossils in consecutive formations, 306. ——, on early transitional links, 283. Pierce, Mr., on varieties of wolves, 71. Pigeons with feathered feet and skin between toes, 9. ——, breeds described, and origin of, 15. ——, breeds of, how produced, 28, 30. ——, tumbler, not being able to get out of egg, 68. ——, reverting to blue colour, 127. ——, instinct of tumbling, 210. ——, young of, 392. Pigs, black, not
|
| 13% |
F391
Book:
Darwin, C. R. 1872. The origin of species by means of natural selection, or the preservation of favoured races in the struggle for life. London: John Murray. 6th ed.; with additions and corrections. Eleventh thousand.
Text
Image
PDF
pigeons, to blue colour, 127. Rhododendron, sterility of, 239. Richard, Prof., on Aspicarpa, 367. Richardson, Sir J., on structure of squirrels, 139. ——, on fishes of the southern hemisphere, 338. Robinia, grafts of, 246. Rodents, blind, 110. Rogers, Prof., Map of N. America, 274. Rudimentary organs, 397. Rudiments important for classification, 367. Rütimeyer, on Indian cattle, 14, 241. S. Salamandra atra, 397. Saliva used in nests, 228. Salvin, Mr., on the beaks of ducks, 184. Sageret, on grafts
|
| 10% |
F391
Book:
Darwin, C. R. 1872. The origin of species by means of natural selection, or the preservation of favoured races in the struggle for life. London: John Murray. 6th ed.; with additions and corrections. Eleventh thousand.
Text
Image
PDF
tail and red spot on the forehead, and which notoriously breeds very true; the mongrels were dusky and mottled. I then crossed one of the mongrel barb-fantails with a mongrel barb-spot, and they produced a bird of as beautiful a blue colour, with the white loins, double black wing-bar, and barred and white-edged tail-feathers, as any wild rock pigeon! We can understand these facts, on the well-known principle of reversion to ancestral characters, if all the domestic breeds are descended from
|
| 10% |
F391
Book:
Darwin, C. R. 1872. The origin of species by means of natural selection, or the preservation of favoured races in the struggle for life. London: John Murray. 6th ed.; with additions and corrections. Eleventh thousand.
Text
Image
PDF
breed freely under domestication;—these supposed species being quite unknown in a wild state, and their not having become anywhere feral;—these species presenting certain very abnormal characters, as compared with all other Columbidæ, though so like the rock-pigeon in most respects;—the occasional re-appearance of the blue colour and various black marks in all the breeds, both when kept pure and when crossed;—and lastly, the mongrel offspring being perfectly fertile;—from these several reasons
|
| 10% |
F391
Book:
Darwin, C. R. 1872. The origin of species by means of natural selection, or the preservation of favoured races in the struggle for life. London: John Murray. 6th ed.; with additions and corrections. Eleventh thousand.
Text
Image
PDF
rarely, co-exist, without our being able to assign any reason. What can be more singular than the relation in cats between complete whiteness and blue eyes with deafness, or between the tortoise-shell colour and the female sex; or in pigeons between their feathered feet and skin betwixt the outer toes, or between the presence of more or less down on the young pigeon when first hatched, with the future colour of its plumage; or, again, the relation between the hair and teeth in the naked Turkish
|
| 10% |
F391
Book:
Darwin, C. R. 1872. The origin of species by means of natural selection, or the preservation of favoured races in the struggle for life. London: John Murray. 6th ed.; with additions and corrections. Eleventh thousand.
Text
Image
PDF
various colours are crossed, we see a strong tendency for the blue tint and bars and marks to reappear in the mongrels. I have stated that the most probable hypothesis to account for the reappearance of very ancient characters, is—that there is a tendency in the young of each successive generation to produce the long-lost character, and that this tendency, from unknown causes, sometimes prevails. And we have just seen that in several species of the horse-genus the stripes are either plainer or appear
|
| 10% |
F391
Book:
Darwin, C. R. 1872. The origin of species by means of natural selection, or the preservation of favoured races in the struggle for life. London: John Murray. 6th ed.; with additions and corrections. Eleventh thousand.
Text
Image
PDF
denied that the American cuckoo occasionally lays her eggs in other birds' nests; but I have lately heard from Dr. Merrell, of Iowa, that he once found in Illinois a young cuckoo together with a young jay in the nest of a Blue jay (Garrulus cristatus); and as both were nearly fully feathered, there could be no mistake in their identification. I could also give several instances of various birds which have been known occasionally to lay their eggs in other birds' nests. Now let us suppose that the
|
| 10% |
F391
Book:
Darwin, C. R. 1872. The origin of species by means of natural selection, or the preservation of favoured races in the struggle for life. London: John Murray. 6th ed.; with additions and corrections. Eleventh thousand.
Text
Image
PDF
two of the Australian cuckoos, when they lay their eggs in an open nest, manifest a decided preference for nests containing eggs similar in colour to their own. The European species apparently manifests some tendency towards a similar instinct, but not rarely departs from it, as is shown by her laying her dull and pale-coloured eggs in the nest of the Hedge-warbler with bright greenish-blue eggs. Had our cuckoo invariably displayed the above instinct, it would assuredly have been added to
|
| 10% |
F391
Book:
Darwin, C. R. 1872. The origin of species by means of natural selection, or the preservation of favoured races in the struggle for life. London: John Murray. 6th ed.; with additions and corrections. Eleventh thousand.
Text
Image
PDF
plant cannot be doubted; for Gärtner gives in his table about a score of cases of plants which he castrated, and artificially fertilised with their own pollen, and (excluding all cases such as the Leguminosæ, in which there is an acknowledged difficulty in the manipulation) half of these twenty plants had their fertility in some degree impaired. Moreover, as Gärtner repeatedly crossed some forms, such as the common red and blue pimpernels (Anagallis arvensis and cœrulea), which the best
|
| 10% |
F391
Book:
Darwin, C. R. 1872. The origin of species by means of natural selection, or the preservation of favoured races in the struggle for life. London: John Murray. 6th ed.; with additions and corrections. Eleventh thousand.
Text
Image
PDF
as the several domestic breeds of the pigeon are descended from the blue and barred rock-pigeon! On the ordinary view of each species having been independently created, why should specific characters, or those by which the [page] 41
|
| 8% |
A570
Periodical contribution:
Darwin, George H. 1872. Development in dress. Macmillan Magazine 26: 410-416.
Text
our hussars the fur has grown enormously, and the bag has dwindled into a flapping ornament, which may be detached at pleasure. Lastly, in the new busby of the Royal Engineers the bag has vanished, although the top of the cap (which is made of cloth and not of fur) is still blue, as was the bag formerly; the top cannot, however, be seen, except from a bird's-eye point of view. It appears that all cockades and plumes are worn on the left side of the hat, and this may, I think, be explained by the
|
| 45% |
CUL-DAR193.13
Note:
1872.04.19
Mr Stevens sent me a stalk of a Hyacinth grown near London
Text
Image
The Complete Work of Charles Darwin Online [13] April 19/72/ Mr Stevens sent me a stalk of a Hyacinth grown near London; [2 words illeg] which had thrown up 3 flower-stems; one with fine blue flowers; one with fine red; the threads with some flowers blue on one side some red on the others. What is more curious, several of the flowersin one side of turf bed some of the separate petals longitudinally striped with blue red.— (Case like [illeg]-gilliflower c. c
|
| 17% |
CUL-DAR54.80-99
Note:
1872.08.23--1872.09.10
Drosera / Placed sharp needle under Leaves so as to touch under surface
Text
Image
in 24º, then ie Aug 26th put on raw cooked meat, in 9º no effect; nor any effects after 24º Aug 26 put 3 splinters of thin glass on 3 Hairs, produced in 9º no effect, either apparently in secretion or in movement, nor after 24º Aug 28 Put on 6 minut portions of white 6 of blue glass on glands of these 12 only 4 moved viz 2 whites 2 blues, I suspect, I touched the glands in putting on the white glass. [2v
|
| 17% |
CUL-DAR54.80-99
Note:
1872.08.23--1872.09.10
Drosera / Placed sharp needle under Leaves so as to touch under surface
Text
Image
Down. Sept 4th 8º 22' 30' Tartrate of Ammonia 1 gr to 1 oz on 5 leaves (Blue sticks) 8º 32' no certain effect (8º 41' do) 8º 55' [-] 23 [=] 32' I think some effect on young leaves 9º 25' moderate action 10º 35; do.- - 12º 50' very moderate action (5º - less inflection) ie in 8º 30' Sept 5 8º 15 all the leaves now probably open except partially one. Sept 6th 8º do Sept 4th 8º 30' Ammonium chloride of 1 gr to 1 oz 6 leaves (Red black sticks) 8º 55' decided affect p 25) 9º 25' stronger action
|
| 30% |
CUL-DAR55.69
Note:
1872.09.10
After rather cold night, plants in greenhouse at 8h 20 I routed several
Text
Image
The Complete Work of Charles Darwin Online (p. 2A Sept 10th — After rather cold night, plant in greenhouse, at 8° 20' I routed several tent, 2 moved a little: I put on 3 bits of blue glass; 2 corks 2 cinders; all but the latter was carried inwards. I then put plant under Bell-glass with hot water raised temp to 75° 80˚; but when I routed several tentacles, repeatedly, not one moved 187
|
| 30% |
CUL-DAR54.107-141
Note:
1872.09.11--1872.09.28
[Drosera continued] [application of nitrate of ammonia, water, hot sun,
Text
Image
Sept 18 acetate of Morphia Blue stick 8º 40' on 2 other glands at 8º 46' atoms of meat put on (atoms put on adjoining gland began to move in about 1' the other moved. (11º 45' the 2 have reached centre) Sept 18' Acetate of Strychnine 1 gr to 1 oz (minute drops) (10º 40' about) (marked these with blue on under side to see if killed) After clearly in movement from atoms of meat put on the Strychnine red stick 1 not get to centre other to centre (meat removed marked with black) (no use) White
|
| 26% |
CUL-DAR54.107-141
Note:
1872.09.11--1872.09.28
[Drosera continued] [application of nitrate of ammonia, water, hot sun,
Text
Image
Down Sept 22d 9º 5' Sulphate of Quinine 1 gr to 1 oz (concentrated for not all dissolved, so less) large drops on 6 leaves (Blue stick by pedicels) (10º 30' no effect) Sept 23d 8º A.m. one leaf closely inflected; 2 with some few tents inflected, 3 unaffected Sept 24' 9º 15' 3 of leaves with small central glands much injured nut external tentacles not injured 1 leaf closely inflected, with central glands injured 2 leaves with many tentacles inflected central glands injured Sept 25 8' Am do do
|
| 21% |
CUL-DAR54.107-141
Note:
1872.09.11--1872.09.28
[Drosera continued] [application of nitrate of ammonia, water, hot sun,
Text
Image
Sept 12th 8º 40' 1 leaf in 10 minims of 1 gr to 24 oz N. of Am (+5 of pure water) small glass red (10º 45' several inflected, both long short-headed inflected? (2º 30' a few long-H 2 round-Headed inflected) (5º 15' fully or almost fully reexpanded) Sept 12th - 8º 45 1 leaf (dipped as before) in 10 m of 1 gr to 24 oz N. of amm small glass blue (10º 46' with all strongly closely inflected, except 13 of the longest which seemed too old Concentration seem efficient) (2º 30' a great deal of
|
| 17% |
CUL-DAR54.107-141
Note:
1872.09.11--1872.09.28
[Drosera continued] [application of nitrate of ammonia, water, hot sun,
Text
Image
Down Sept. 12th.- 8º 27'- 2 leaves dipped in 20 minims of 1 gr to 24 oz of N. of ammonia - Big Blue glass (10º 44 - 1 leaf with almost all inflected - the others with a great many) (2º 30' larger leaf with all except 10 long-headed ― smaller with all ― 18 chiefly long-Headed} Count the tentacles 5º 15' larger leaf all inflected except 8 Sept 13th 8' Am. do. smaller leaf all inflected except 7. Sept 13' 8º all inflected except 3. (I counted these found 147 130 tentacles, subtracting 15, we
|
| 17% |
CUL-DAR54.107-141
Note:
1872.09.11--1872.09.28
[Drosera continued] [application of nitrate of ammonia, water, hot sun,
Text
Image
Sept 19 Down. Pot 1/2 minim of A. of Strychnine on 6 leaves 1 gr to 1 oz 9º 30' A.m. (Blue Sticks) 11º 50' some inflection - Glands in many parts blackened so that there is absorption some effect. Sept. 20 8 A.m. There is no more inflection than yesterday this only in certain leaves on one side alone [insertion:] Some of the inflected tentacles have not blackened Heads- no true inflection The central glands on disc much blackened - All the leaves seen drying up as if poisoned. Sept 21 8º 15'
|
| 17% |
CUL-DAR54.107-141
Note:
1872.09.11--1872.09.28
[Drosera continued] [application of nitrate of ammonia, water, hot sun,
Text
Image
Segregation Down Sept. 23d At 9º 15-20 put atoms of cork blue glass on 2 leaves, several moved on one, only one on the 2d old leaf - In 1º after several inflected - After inflection in 35' cut off one tent, examined under compound M. No segregation. In 7º after inflection examined several now much elongated segregation, not only in the tents bearing the atoms, but in adjoining ones which had become inflected from sympathy; also in the short, purple sub-central ones which were not at all
|
| 21% |
CUL-DAR54.143-176
Note:
1872.09.25--1872.10.30
[Drosera continued] [application of phosphate of potassium, chloride of
Text
Image
Sept 27th 1872 11º 48' Yellow red sticks 6 leaves with Phosphate of Potash 1 gr to 1 oz 5º. P.m. no more inflection than may be accounted for by drying of fluid viscid from glands— Sept 28 8º Am. no true inflection. (Sept 29th 8º 15 no effect whatever - leaves quite fresh.) quite Healthy (Sept 30th 8º 15' do do] V Sept 27 11. 57' Blue stick 6 leaves chloride of Potassium 1 gr to 1 oz 5º P.m hardly any inflection, can be explained by drying of viscid fluid. V Sept 28 8 A m no inflection. Sept
|
| 21% |
CUL-DAR54.143-176
Note:
1872.09.25--1872.10.30
[Drosera continued] [application of phosphate of potassium, chloride of
Text
Image
(Abstracted) Oct I 10º 50' Jagged glass Phosphate of ammonia 1 gr to 40 oz— 10 minim 11º 55' almost all inflected - (ie 1º 5) 12º 50 all except about 7 [crossed] 12º 55' no about 25-30 not inflected seem old Oct 1. 10º 55' Red glass same as last - repeated. 11º 50 all inflected except 3 at 55') 12 55' do do do white wool Oct 1. 11º 8' Blue glass - 1 gr to 36 oz 10 minim 11º 53' almost all inflected 12 55. no about 28 not inflected. Oct 1. 11. 15' Yellow glass 1 gr to 36 oz 10 minims 11º 53
|
| 21% |
deep, where it is damp all through the hot season. worms then seem torpid. p. 3 (c) size of great castings —many measurements. *(Have I used these measurements, I could work them in at end of ch 1.) [interl blue ink; square brackets in MS]— in single night.! or 2 nights.— swarm everywhere in Bengal. All the castings sen t from Lower Bengal.— Pellets on dry ground.——In forests less abundant than on open ground—Most in former sites during hot weather.— These pellets washed away every shower
|
| 17% |
CUL-DAR54.143-176
Note:
1872.09.25--1872.10.30
[Drosera continued] [application of phosphate of potassium, chloride of
Text
Image
1872 Oct 3d. Distilled water in same little saucers treated in every way as last. specimens, 10 minims Red glass. 10º 32' water from Bottle with pipe 5º P.m. none inflected: Oct 4' 8 A m. still no inflection Down 1872 Blue glass 10º 35' Water from great bottle 10. 45' Plenty of inflection. 5º P.m all except a few long-Headed marginal inflected. Oct 4 8º Am. still inflected: Down 1872 10º 48' 2 leaves with 20 minim of Distilled water from Big Bottle One of these rather young tender considerably
|
| 17% |
CUL-DAR54.143-176
Note:
1872.09.25--1872.10.30
[Drosera continued] [application of phosphate of potassium, chloride of
Text
Image
Human hair really floated on viscid matter there was no movement; but when by moving these atoms a point was brought into contact, with gland movement commenced. I observed this with blue-glass - hair, cork. The point of atom of glass wd be apt to touch, as would the clip of Hair. The weight which I give are really too great, for they act, whilst floating if any point touches for a time the gland. By observing with rather strong lens under single Microscope, I see that astonishing minute atoms
|
| 17% |
CUL-DAR54.143-176
Note:
1872.09.25--1872.10.30
[Drosera continued] [application of phosphate of potassium, chloride of
Text
Image
Oct 2d 5º P.m. raw meat in centre (Blue red stick) I gave a mere prick in centre. Oct 3d 8º 15' tentacles, except the extreme marginals, equally inflected all round the leaf, so I suppose I missed cutting nerve. See to this (Black wool in Spirits) Results of last alone Oct 28 I find that the medial nerve is certainly divided, the division is plain to the right of the nerve, but some brown (after alcohol) pulpy matter is still in concretion, when viewed from both above below: This is important
|
| 17% |
CUL-DAR54.143-176
Note:
1872.09.25--1872.10.30
[Drosera continued] [application of phosphate of potassium, chloride of
Text
Image
inflection, at distal end alone 3d do do do do 4' 8 quite reexpanded (see what has been cut) Spirits White Thread Oct 1 9º 55' (Blue stick) meat as last. nerve cut as in last. 2º 30 great inflection at distal end alone (Oct 2d 8º strong inflection exactly across, transversely middle of leaf; edge of leaf itself slightly inflected. ) (Oct 3 8' do; but the shorter one tentacles on disc towards near the pedicel are a little inflected ) Black Thread Keep in spirit Oct 1 9º (Yellow stick) --- as 2
|
| 34% |
CUL-DAR55.72-74
Note:
[1872].11.11--[1872].11.12
11th from 12h 50 Turpentine / almost died at 9 pm [experimental
Text
Image
Blue stick 20th 9° 50' 2. moved 3 Hairs 13/1000 8/1000 6 1/2/500 4/500 [sketch] (Convex side much pinker) no difference in breaking two hairs 2. 40 2 Hairs well inflected 2 Hairs on White stick 20th 9. 50' long Hairs across dead stem 2° 20' neither moved 21. 9° both moved [74v
|







