The Universal Kinship

Note 1 — The Physical Kinship

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The bat and a few other animals have a disc-like placenta, but it develops into the disc shape by a different route from what it does in the primates. 2. Hartmann: Anthropoid Apes; New York, 1901. 3. Quatrefages: The Human Species; New York, 1898. 4. Tyler: Anthropology; New York; 1899. 5. Haeckel: History of Creation, 2 vols.; New York, 1896. 6. Haeckel: The Riddle of the Universe; New York, 1901. 7. Huxley: Man’s Place in Nature; New York, 1883.

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