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Type specimen of Cyathea albidopaleata from the Smithsonian Institution, National Museum of Natural History, Department of Botany
Type specimen of Piper armatum from the Smithsonian Institution, National Museum of Natural History, Department of Botany
Mexia at table, 1937 | © California Academy of Sciences
Hikers looking at Mt. Lyell, Yosemite National Park (Calif.), circa 1919-1930 | © California Academy of Sciences
Melons and onion varieties from "El cultivo de legumbres en Puerto Rico."
New Cuban Urocoptidae I "The Nautilus, v.25"
Plate 23 from "The cyclophorid operculate land mollusks of America"
Title page of "The Journal of Parasitology, v. 1"
Title page of "Proceedings of the Washington Academy of Sciences, v.1"
"Catalogue of the birds of Costa Rica, indicating those species of which the United States National Museum possesses specimens from that country" from Proceedings of the United States National Museum, v.8
Narina trogon painted by Louis Agassiz Fuertes from "Album of Abyssinian birds and mammals"
Impressions of the voices of tropical birds from "Bird-lore"