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Screech owl painted by Louis Agassiz Fuertes from "Handbook of Birds of Eastern North America"
Gadwall ducks by Louis Agassiz Fuertes from "A Natural History of Ducks"
Scarlet tanager by Louis Agassiz Fuertes from "Citizen Bird"
Mosses of Western Mexico Collected by Mrs. Ynes Mexia from "Journal of the Washington Academy of Sciences, v. 18 no. 21."
Title page from "Contributions from the United States National Herbarium v. 26, part 8"