Reviews — Prof. Cope — Tertiary Vertebrata of the West. 465 



work of investigating the Quaternary Lakes of the Great Basin in 

 Utah and California. Mr. W. J. M'Gee reports on the progress made 

 in preparing a general geological map of the United States, as well 

 as on his studies of the superficial deposits of the district of Columbia 

 and adjacent territory. Captain C. E. Dutton is engaged in studying 

 the chain of volcanoes constituting the Cascade Range in California, 

 Oregon, and Washington Territory. Mr. S. F. Emmons reports on 

 mining geology of the Eocky Mountains, and Mr. G. T. Becker on 

 the quicksilver mining district of Knoxville in California. Prof. 

 0. C. Marsh states that eight different parties were engaged in collect- 

 ing fossils in Oregon, Wyoming, Kansas, and Nebraska, and that his 

 monographs on the Sauropoda and the Stegosauria were in course of 

 completion. Dr. C. A. White was engaged in studying the Laramie 

 Group on the Upper Missouri, and on various palaeontological 

 investigations in Washington and California. Mr. C. D. Walcott, 

 assisted by Prof. H. S. Williams and others, has studied the Devonian 

 and other Palaeozoic rocks of New York, Tennessee, Virginia, Vermont 

 and Alabama. Mr. Lester F. Ward has been collecting and arrang- 

 ing the fossil plants of the Fort Union Group on the Yellowstone 

 and Upper Missouri rivers. The chemical work of the Survey is 

 directed by Mr. F. W. Clarke, whilst Mr. A. Williams is engaged on 

 the statistics of metals; and, finally, Mr. G. W. Shutt traces the 

 course of a preliminary geological investigation in Virginia. 



These administrative reports, however, only occupy sixty-six pages 

 of the volume ; the remaining 400 pages contain a series of elaborate 

 essays on different branches of geological science, each of which is 

 treated in considerable detail, and abundantly and beautifully illus- 

 trated. We can here but mention the titles of the different treatises 

 and the authors' names, and refer the reader to the volume itself. 

 The first treatise is on " The Topographic Features of Lake Shores," 

 by G. K. Gilbert. This is followed by "The Requisite and Qualifying 

 Conditions of Artesian Wells," by T. C. Chamberlain ; " Preliminary 

 Paper on an Investigation of the Archaean Formations of the North - 

 Western States," by R. D. Irving; '-'The Gigantic Mammals of the 

 Order Dinocerata," by Prof. 0. C. Marsh; "Existing Glaciers of 

 the United States," by T. C. Russell ; and " Sketch of Paleobotany," 

 by Lester F. Ward. G. J. H. 



EETIE W S. 



Department of the Interior. Report of the United States 

 Geological Survey of the Territories. F. V. Hayden, United 

 States Geologist-in-Charge. Volume III. The Vertebrata 

 of the Tertiary Formations of the West. Book I. By 

 Edward D. Cope, Member of the National Academy of Sciences. 

 (Washington, Government Printing Office, 1883.) 

 [Continued from p. 419.) 



BATS are scantily represented in the Bridger fauna, the only 

 American species described by Professor Cope being Vesperngo 

 anemojiliilus, which has the inferior molars like those of Didelphys. 



DECADE III. VOL. III. KO. X. 30 



