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| Results 1-24 of 24 for « +text:hartnack +(language:English) +(+name:darwin +name:charles +name:robert) » |
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), Scottish lawyer and horticulturist. Hewitt. Eden Cottage Spark-Brook Birmingham Edward Hewitt (1815/16-1880), poultry breeder and judge of poultry exhibitions. Hildebrand Dr. Freiburg Baden. (Sept 68) Friedrich Hermann Gustav Hildebrand (1835-1915), German botanist. Haliburton Mrs Bridge House Richmond. London S.W Sarah Harriet (Mostyn Owen) Haliburton (1804-1882), Darwin sent her a copy of Expression in 1872. Listed on p. 44 when Mrs Williams. Hartnack Dr. R. Bonaparte I. Paris Edmund Hartnack
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CUL-DAR110.B20
Note:
[Undated]
Gilia pulchella / Long-styled — mean of 11 measurements / Diameter of
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The Complete Work of Charles Darwin Online [20] Gillia pulchella Long-styled — mean of 11 measurements Diameter of pollen grains = 17.2 (Hartnack 8 — tube in) Short styled 12 measurements Diameter = 17.2 Length of Pistil Two short styled flowers examined three long styled The actual length of the pistils is greater in both the short styled flowers then in either of the long styled ones By taking into consideration of the corolla it comes out the reverse: The average proportional length of long
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CUL-DAR59.1.136
Note:
[Undated]
U[tricularia] montana [annotated diagram of measurements]
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The Complete Work of Charles Darwin Online [136] Dec 26 U. montana [figure] ab = transverse diameter cd — longitudinal (I) ab = 64° Hartnack No 4 tube out Mière E.P No 2 cd = 75° — — — — — — (II) ab = 75° = II .03 inch transverse = 3 to 4/100 cd = 98° .04 .0392 longitudinal = ab 1/25 of an inch (III) ab = 108° 105° III .042 transverse cd = 120° .048 longitudinal .05/100 (IV) ab = 90° IV .036 transverse cd = 110° .044 longitudinal or = 1/2500 inch No I was a small sized one so I neglect it 75
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BL-Zweig.141
Draft:
[1874]
Draft of Insectivorous plants, folio 21 (fragment) mathematical calculations relating to meridians by G. H. Darwin on verso
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The Complete Work of Charles Darwin Online [21] (21 [in margin, in the hand of G. H. Darwin:] Portion of the rough draft of Insectivorous Plants by Charles Darwin G.H.D xx/628 Utricularia that the best plan would have been to puncture the bladders, but I did not think of this till too late. In all such trials, however, it is scarcely possible to be certain that the bladder, though highly translucent, has not already captured some minute animals. Therefore most of my experiment were therefore
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CUL-DAR58.1.83
Note:
1874.06.29--1874.06.30
Erica tetralix / 2nd side leaf on left hand as it looks under micro-
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June 29-74 Erica Tetralix * 2nd side leaf on right left hand as it looks under micro ─ Hartnack No 5 [sketch] Gland on end hair dark [sketch] not v superficial focussing [sketch] The others same as * 10.10 AM Put * into watch glass of 2 parts distilled water to 1 of raw meat juice infusion roughly marked * 10.5 AM Put 4 leaves in a similar mixture watch glass 3 10.15 Put 4 leaves in distilled water─ protect them under glass with clear bits of [grains] Watch G ─ (4) 10.20 4 leaves in carb
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CUL-DAR59.1.69-73
Note:
1874.07.02--1874.07.09
Pinguicula [measurements, observations, diagrams]
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July 9 74 Pinguicula lusitanica Hartnack No 4 [sketch] The hairs vary in their points from No a a' to b They project stiffly over the midrib grate tho' very slightly under the needle [73
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CUL-DAR59.1.131-134
Note:
[1874?].09.26--[1874?].09.27
U[tricularia] montana / The overarching base of antennae & antennae
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Sept. 26th Peristoma posteriorly semi-circular — sp valve with about 12 transversely much elongated glands, on borders with very short footstalks — With Hartnack 8. tuber drawn out length of division of micrometer. Spec had been kept for 24 in sol. of Urea (1 gr to 1 oz) — These trichome now continued generally towards centre several spheres of very translucent matter with tinge of yellow — there was in many from 6 to 8 of these spheres, these ca very slowly changed position forms sometimes
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in a decayed state. In these six bladders, a large number of the quadrifid processes contained transparent, often yellowish, more or less confluent, spherical or irregularly shaped, masses of matter. Some of the processes, however, contained only fine granular matter, the particles of which were so small that they could not be defined clearly with No. 8 of Hartnack. The delicate layer of protoplasm lining their walls was in some cases a little shrunk. On three occasions the above small masses
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in a decayed state. In these six bladders, a large number of the quadrifid processes contained transparent, often yellowish, more or less confluent, spherical or irregularly shaped, masses of matter. Some of the processes, however, contained only fine granular matter, the particles of which were so small that they could not be defined clearly with No. 8 of Hartnack. The delicate layer of protoplasm lining their walls was in some cases a little shrunk. On three occasions the above small masses
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circumstances all favouring the process of absorption. Many perfectly clean bladders which had never caught any prey were opened, and nothing could be distinguished with a No. 8 object-glass of Hartnack within the delicate, structureless protoplasmic lining of the arms, excepting in each a single yellowish particle or modified nucleus. Sometimes two or even three such particles were present; but in this case traces of decaying matter could generally be detected. On the other hand, in bladders
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. The best plan would have been to puncture the bladders, but I did not think of this till too late, excepting in a few cases. In all such trials, however, it cannot be ascertained positively that the bladder, though translucent, does not contain some minute animal in the last stage of decay. Therefore most of my experiments were made by cutting bladders longitudinally into two; the quadrifids were examined with No. 8 of Hartnack, then irrigated, whilst under the covering glass, with a few drops
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circumstances all favouring the process of absorption. Many perfectly clean bladders which had never caught any prey were opened, and nothing could be distinguished with a No. 8 object-glass of Hartnack within the delicate, structureless protoplasmic lining of the arms, excepting in each a single yellowish particle or modified nucleus. Sometimes two or even three such particles were present; but in this case traces of decaying matter could generally be detected. On the other hand, in bladders
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. The best plan would have been to puncture the bladders, but I did not think of this till too late, excepting in a few cases. In all such trials, however, it cannot be ascertained positively that the bladder, though translucent, does not contain some minute animal in the last stage of decay. Therefore most of my experiments were made by cutting bladders longitudinally into two; the quadrifids were examined with No. 8 of Hartnack, then irrigated, whilst under the covering glass, with a few drops
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. Unfortunately the glands cannot be carefully examined whilst attached to the bladders in their entire state. Their summits, therefore, including the valve, collar, and antennae, were sliced off, and the condition of the glands observed; they were then irrigated, whilst beneath a covering glass, with the solutions, and after a time re-examined with the same power as before, namely No. 8 of Hartnack. The following experiments were thus made. As a control experiment solutions of one part of white
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Hartnack. It was then irrigated with a few drops of a solution of one part of urea to 218 of water. After 2 hrs. 25 m. the spherical glands were still colourless; whilst the oblong and two-armed ones were of a brownish tint, and their primordial utricles much shrunk, some containing distinctly visible granules. After 9 hrs. some of the spherical glands were brownish, and the oblong glands were still more changed, but they contained fewer separate granules; their nuclei, on the other hand
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. Unfortunately the glands cannot be carefully examined whilst attached to the bladders in their entire state. Their summits, therefore, including the valve, collar, and antennae, were sliced off, and the condition of the glands observed; they were then irrigated, whilst beneath a covering glass, with the solutions, and after a time re-examined with the same power as before, namely No. 8 of Hartnack. The following experiments were thus made. As a control experiment solutions of one part of white
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Hartnack. It was then irrigated with a few drops of a solution of one part of urea to 218 of water. After 2 hrs. 25 m. the spherical glands were still colourless; whilst the oblong and two-armed ones were of a brownish tint, and their primordial utricles much shrunk, some containing distinctly visible granules. After 9 hrs. some of the spherical glands were brownish, and the oblong glands were still more changed, but they contained fewer separate granules; their nuclei, on the other hand
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The Complete Work of Charles Darwin Online [131] [Figure] Section of joint of Cotyledon Oxalis rosea. Aug 23 /78 in day position Camera lucida Hartnack obj V ocular 3 p. petiole bb commencement of blade of Cot f. fibro-vascular bundle (copy by Photography reduce to 1/2) (magnified × 150) — (will be half this scale on Block) [132
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The Complete Work of Charles Darwin Online [126] (Mark on back of Block 64A3) [Annotated figure] (Fig 64 (A)) 1/3 scale facsimile of part in square to stand upright. Cut block close, as it will stand along-side of Fig. reduce this to this length O. corniculata. from a seedling which had produced one perfect leaf: cotyledon 4 mm in length Feb 1— 1879 (Hartnack V) See Back for description [126v
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The Complete Work of Charles Darwin Online [128] [Annotated figure] (Mark on back of Block 64 BZ) leaf end (Fig. 64 (B)) Upper end (1/3 scale fac-simile of part in square to stand upright— cut block close.) × 150 Hartnack 5 O corniculata: cotyledon of old seedling Mar 20 7
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F1225
Book:
Darwin, C. R. 1888. Insectivorous plants. 2d ed. Revised by Francis Darwin. London: John Murray.
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them by the quadrifid and bifid processes. The extremely delicate nature of the membrane of which these processes are formed, and the large surface which they expose, owing to their number crowded over the whole interior of the bladder, are circumstances all favouring the process of absorption. Many perfectly clean bladders which had never caught any prey were opened, and nothing could be distinguished with a No. 8 object-glass of Hartnack within the delicate, structureless protoplasmic lining
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F1225
Book:
Darwin, C. R. 1888. Insectivorous plants. 2d ed. Revised by Francis Darwin. London: John Murray.
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translucent, does not contain some minute animal in the last stage of decay. Therefore most of my experiments were made by cutting bladders longitudinally into two; the quadrifids were examined with No. 8 of Hartnack, then irrigated, whilst under the covering glass, with a few drops of the fluid under trial, kept in a damp chamber, and reexamined after stated intervals of time with the same power as before. [page] 33
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F1225
Book:
Darwin, C. R. 1888. Insectivorous plants. 2d ed. Revised by Francis Darwin. London: John Murray.
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the bladders in their entire state. Their summits, therefore, including the valve, collar, and antenn , were sliced off, and the condition of the glands observed; they were then irrigated, whilst beneath a covering glass, with the solutions, and after a time re-examined with the same power as before, namely No. 8 of Hartnack. The following experiments were thus made. As a control experiment solutions of one part of white sugar and of one part of gum to 218 of water were first used, to see whether
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F1225
Book:
Darwin, C. R. 1888. Insectivorous plants. 2d ed. Revised by Francis Darwin. London: John Murray.
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was not affected was then irrigated with the mixed solution of the nitrate and phosphate of ammonia, and after only 25 m. the glands contained from four or five to a dozen granules. After six additional hours their primordial utricles were greatly shrunk. The summit of a bladder was examined, and all the glands found colourless, with their primordial utricles were greatly shrunk; yet many of the oblong glands contained granules just resolvable with No. 8 of Hartnack. It was then irrigated with
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