A manual of the infusoria, including a description of all known flagellate, ciliate, and tentaculiferous protozoa, British and foreign and an account of the organization and affinities of the sponges by W. Saville Kent, 3 vol.

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A manual of the infusoria, including a description of all known flagellate, ciliate, and tentaculiferous protozoa, British and foreign and an account of the organization and affinities of the sponges by W. Saville Kent, 3 vol.

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A manual of the infusoria, including a description of all known flagellate, ciliate, and tentaculiferous protozoa, British and foreign and an account of the organization and affinities of the sponges by W. Saville Kent, 3 vol.

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Vorträge über Descendenztheorie, gehalten au der Unversität zu Freiburg im Breisgau, von August Weismann. Mit 3 farbigen tafeln und 131 textfiguren.

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Vorträge über Descendenztheorie, gehalten au der Unversität zu Freiburg im Breisgau, von August Weismann. Mit 3 farbigen tafeln und 131 textfiguren.

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American natural history. Volume 3. Part 1.--Mastology. By John D. Godman.

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