Primitive animals / by Geoffrey Smith.

  • Geoffrey Watkins Smith
Date:
1911
Catalogue details

Licence: In copyright

Credit: Primitive animals / by Geoffrey Smith. Source: Wellcome Collection.

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    CHAP. VI. The Origin op the Land Vertebrates. The derivation of the peiitadaetyle limb. The deri- vation of lungs. Air-breathing fishes. The Dipnoi. The skull of the Diimoi and the ac- quisition of the auditory organ. The articulation of the jaws VII. The Rise of the Mammalia. Teculiarities of the Mammalia. Development and nourishment of the embryo. The Placenta. Suckling and Mammary glands. Milk-dentition. Peculiarities of the Monotremes or Egg-laying Mammals. Characteristics of the Marsupials. Their re- productive peculiarities. The Marsupials as a degenerate group VIII. Reflections on the Past and Future of Animal Life. Idea of evolution applied to modern man. Inheritance of acquired characters. Possibility of degeneration or standstill. Primitive man and his gradual control of nature. Extinction of wild animals in islands and on continents. Gradual domestication of nature Appendix A. Classification of the chief Animal Phyla . Appendix B. A Table of the chief Geological Epochs . PAGE 92 108 13(5 150 152 Index . 155
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