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Audouin and Milne Edwards were the first to see the importance of the bearing of a knowledge of the manner in which marine animals are distributed in depth, on geology.
It has been seen that Audouin and Milne Edwards foresaw the general influence of the study of distribution in depth upon the interpretation of geological phenomena.
More than twenty years later, M.M. Audouin and Milne Edwards carried out the principle of distinguishing the Faunae of different zones of depth much more minutely, in their "Recherches pour servir
M. Audouin showed it the portraits of a cat and a wasp; at these it became much terrified; whereas, at the sight of a figure of a grasshopper or beetle, it precipitated itself on the picture, as if to seize the objects there represented. Although monkeys are now rare in a wild state near Para, a great number may be seen semi-domesticated in the city. The Brazilians are fond of pet animals.
Audouin believes that the females of this species are impregnated by the males which are born in the same cells with them; but it is much more probable that the females visit other cells, so that close inter-breeding is thus avoided. The female, on the other hand, with the rarest exceptions, is less eager than the male.
Ateles marginatus, colour of the ruff of; hair on the head of. Ateuchus cicatricosus, habits of. Ateuchus stridulation of. Athalia, proportions of the sexes in. Atropus pulsatorius. Attention, manifestations of, in animals. Audouin, V., on a hymenopterous parasite with a sedentary male.
The silkworm has long been known to be subject to a very fatal and infectious disease called the Muscardine. Audouin transmitted it by inoculation. This disease is entirely due to the development of a fungus, Botrytis Bassiana, in the body of the caterpillar; and its contagiousness and infectiousness are accounted for in the same way as those of the fly-disease.
The engravings were executed by the most distinguished engravers of Europe, without regard to country, among whom it is sufficient to mention Raffaelle Morghen, the Chevalier von Müller, and his son C. F. von Müller, Bervic, Richomme, Rosaspina, Bartolozzi, Gandolfi, Schiavonetti, the elder and younger Laurent, Massard, Girardet, Lignon, Chatillon, Audouin, Forster, Claessens, etc.
Dureau de la Malle gives an account of a dog reared by a cat, who learned to imitate the well-known action of a cat licking her paws, and thus washing her ears and face; this was also witnessed by the celebrated naturalist Audouin.
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