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Chaptra

Invertebrates

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Cover of Half hours with the lower animals : $b protozoans, sponges, corals, shells, insects, and crustaceans

Half hours with the lower animals : $b protozoans, sponges, corals, shells, insects, and crustaceans

Charles Frederick Holder

2.9
Cover of The Common Objects of the Country

The Common Objects of the Country

J. G. (John George) Wood

2.7
Cover of Jelly-Fish, Star-Fish, and Sea-Urchins: Being a Research on Primitive Nervous Systems

Jelly-Fish, Star-Fish, and Sea-Urchins: Being a Research on Primitive Nervous Systems

George John Romanes

2.7