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This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced

This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the publi

Vol. 1 issued also in Smithsonian Institution, miscellaneous collections, v. 25; Vol. 2 issued also as Smithsonian Institution, miscellaneous publication, no. 5

Excerpt from Proceedings of the Biological Society of Washington, 1918, Vol. 31 About the Publisher Forgotten Books publishes hundreds of thousands of rare and