This report on the Vertebrata of the Oligocene deposits of the Cypress hills forms the 

 fourth part of volume IIT (quarto) of Contributions to Canadian Palaeontology. Part I by 

 Professor Edward D. Cope, on " The species from the Oligocene or Lower Miocene beds of the 

 Cypress hills," published in 1891, is descriptive of specimens obtained during the years 1883, 

 1884, 1888 and 1889. The present part by Mr. Lawrence M. Lambe, is based on the collec- 

 tion made by him in 1904, and on the material of the earlier collections; it consists of 82 

 pages of letter press, illustrated by text figures and eight photogravure plates. 



Department of Mines, 



Geological Survey Branch, 



Ottawa, January 5, 1908. 



R. W. BROCK, 



Acting Director. 



