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Wild animals of North America
Title page of "Contributions from the United States National Herbarium v. 26, part 8"
Mosses of Western Mexico Collected by Mrs. Ynes Mexia from "Journal of the Washington Academy of Sciences, v. 18 no. 21."
Studies of American Plants por Paul C. Standley from "Publication. Field Museum of Natural History. Botanical series. v 4, no. 8"
Table of contents from "Contributions from the Gray Herbarium of Harvard University, v. 45"