Frick, Childs, 1883-1965.2005-11-222005-11-221937http://hdl.handle.net/2246/362xxviii, 669 p., [1] folded leaf of plates : ill. ; 24 cm.Includes bibliographical references and index.61911536 bytesapplication/pdfen-USQH1 .A4 vol.69, 1937Ruminants, Fossil -- North America.Mammals, Fossil -- North America.Paleontology -- Cenozoic -- North America.Paleontology -- North America.text