F944    Book:     Darwin, C. R. 1874. The descent of man, and selection in relation to sex. London: John Murray. 2d ed.; tenth thousand.   Text   Image   PDF

reduction of the canine teeth in the males would almost certainly affect the teeth of the females through inheritance. As the various mental faculties gradually developed themselves the brain would almost certainly become larger. No one, I presume, doubts that the large proportion which the size of man's brain bears to his body, compared to the same proportion in the gorilla or orang, is closely connected with his higher mental powers. We meet with closely analogous facts with insects, for in ants

F944    Book:     Darwin, C. R. 1874. The descent of man, and selection in relation to sex. London: John Murray. 2d ed.; tenth thousand.   Text   Image   PDF

to him in my old manner; he shewed no joy, but instantly followed me out walking, and obeyed me, exactly as if I had parted with him only half an hour before. A train of old associations, dormant during five years, had thus been instantaneously awakened in his mind. Even ants, as P. Huber18 has clearly shewn, recognised their fellow-ants belonging to the same community after a separation of four months. Animals can certainly by some means judge of the intervals of time between recurrent events

F944    Book:     Darwin, C. R. 1874. The descent of man, and selection in relation to sex. London: John Murray. 2d ed.; tenth thousand.   Text   Image   PDF

in the females alone. Although many dragon-flies are large, powerful, and fierce insects, the males have not been observed by Mr. MacLachlan to fight together, excepting, as he believes, in some of the smaller species of Agrion. In another group in this Order, namely, the Termites or white ants, both sexes at the time of swarming may be seen running about, the male after the female, sometimes two chasing one female, and contending with great eagerness who shall win the prize. 54 The Atropos

F944    Book:     Darwin, C. R. 1874. The descent of man, and selection in relation to sex. London: John Murray. 2d ed.; tenth thousand.   Text   Image   PDF

to our ignorance, are often said to arise spontaneously. We can, I think, come to no other conclusion with respect to the origin of the more complex instincts, when we reflect on the marvellous instincts of sterile worker-ants and bees, which leave no offspring to inherit the effects of experience and of modified habits. Although, as we learn from the above-mentioned insects and the beaver, a high degree of intelligence is certainly compatible with complex instincts, and although actions, at

F944    Book:     Darwin, C. R. 1874. The descent of man, and selection in relation to sex. London: John Murray. 2d ed.; tenth thousand.   Text   Image   PDF

females of many animals differ somewhat in habits and are exposed in different degrees to danger, it is probable that in many cases, more of one sex than of the other are habitually destroyed. But as far as I can trace out the complication of causes, an indiscriminate though large destruction of either sex would not tend to modify the sex-producing power of the species. With strictly social animals, such as bees or ants, which produce a vast number of sterile and fertile females in comparison with the

F944    Book:     Darwin, C. R. 1874. The descent of man, and selection in relation to sex. London: John Murray. 2d ed.; tenth thousand.   Text   Image   PDF

, 41; on the hand, 51. , T., on the numerical proportion of the sexes in moles, 247; on the newts, 348; on the croaking of the frog, 350; on the difference in the coloration of the sexes in Zootoca vivipara, 357; on moles fighting, 500. Bell-bird, sexual difference in the colour of the, 389. Bell-birds, colours of, 492. Belt, Mr., on the nakedness of tropical mankind, 57; on a spider-monkey and eagle, 102; habits of ants, 147; Lampyrid distasteful to mammals, 277; mimicry of Leptalides, 325

F944    Book:     Darwin, C. R. 1874. The descent of man, and selection in relation to sex. London: John Murray. 2d ed.; tenth thousand.   Text   Image   PDF

the instincts of ants, 147; on the caves of Abou-Simbel, 168; on the immunity of negroes from yellow fever, 193; change of colour in fishes, 344. Pouter pigeon, late development of the large crop in, 238. Powell, Dr., on stridulation, 281. Power, Dr., on the different colours of the sexes in a species of Squilla, 271. Powys, Mr., on the habits of the chaffinch in Corfu, 248. Pre-eminence of man, 48 Preference for males by female birds, 414, 420; shewn by mammals, in pairing, 522. Prehensile

A80    Periodical contribution:     Müller, F. 1874. The habits of various insects. (Forwarded by Darwin) Nature. A Weekly Illustrated Journal of Science 10 (11 June): 102-3.   Text   Image   PDF

vegetable tissue which might have been derived from the leaves they gather; and this, I think, confirms Mr. Belt's hypothesis. Here, as in Nicaragua the Cecropi are always inhabited by ants, but, I think, by only a single species. I have cut down hundreds of them and never missed the ants. I wonder that it had never occurred to me that the trees are protected by the ants; but there can be no doubt that this is really the case, for young plants of Cecropi , not yet inhabited by ants, are often

F880.2    Book:     Darwin, C. R. 1875. The variation of animals and plants under domestication. London: John Murray. 2d ed. vol. 2.   Text   Image   PDF

of thousands of ants; but the strangers were instantly detected and killed. I then put some ants taken from a very large nest into a bottle strongly perfumed with assafœtida, and after an interval of twenty-four hours returned them to their home; they were at first threatened by their fellows, but were soon recognised and allowed to pass. Hence each ant certainly recognised, independently of odour, its fellow; and if all the ants of the same community have not some countersign or watchword

CUL-DAR240    Note:    1875--1908   Newton, T W Catalogue of the Library of Charles Darwin...1875   Text   Image

Mivart, St. G. [George] 74 Appendicular Skeleton of the Primates. (Phil. Trans.) 4° [London] 1867. Genesis of Species. 8° 1st 2d edits. [London] 1871. Man and Apes 8° [London] 1873 Elementary Anatomy. 8° [London] 1873. 102 Moggridge, J. [Traherne] Harvesting ants 8° [London] 1873. 102 --- Supplement – Trap Door Spiders 8° [London] 1874 Nc Mohl J. Etudes Orientales [Mohl, Jules. Vingt-sept ans d'histoire des études orientales. 2 tomes. 8vo. Paris, 1879–80.] Mohl, H. von. Vermischte Schriften