Approx. 150 issues of the Proceedings of the California Academy of Sciences, fourth series. Some illustrated with plates from photographs of various animals, charts, tables, etc. 10x7¼, original saddle stitched printed wrappers. First printings.

Interesting and scholarly natural history studies. Subjects include: Gigantic Land Tortoises, Iguanas, Birds and Galapagoan Lizards of Galapagos Islands; Amphibians and Reptiles of Arizona; Reptiles and Amphibians from China, Japan, the Loo Choo Islands and Formosa; Fauna of Vigo Group and Evolution of Marine Molluscan Faunas; Pacific Coast Races of the Bewick Wren; Archæological Notes on Western Washington and Adjacent British Columbia; New Species of Hynobius from Japan; Observations of Bird Life of Death Valley; Expedition to Revillagigedo Islands, Mexico in 1925 and more.