Sixteen offprints and small monographs on the fossil mammals of the Rancho La Brea tar pits published between 1913 and 1929 and from 4 pages to 81 pages in length

Pp. 285; numerous line-drawings, black-and-white photographs, maps, and geological charts.  Original printed wrappers, 8vo and sm 4to.  Most publications are from the University of California Publications, Bulletin of the Department of Geology or the Los Angeles County Museum of Natural History.  Here are three titles from the group: “Further observations on the skull structure of Mylodont Sloths from Rancho La Brea,” “Recent studies on the skull and dentition of Nothrotherium from Rancho La Brea” and “Rancho La Brea: A record of Pleistocene Life in California.”  From the research library of marine mammal paleontologist Edward Mitchell with his signature on the front wrapper.