322 LEADING AMERICAN MEN OF SCIENCE 



It would be difficult, indeed, to follow his career in detail as he 

 journeyed through the west, but it resulted in the discovery of 

 many new types of fishes, mosasaurs, chelonians, and other rep- 

 tiles which were described in short preliminary papers and then 

 more fully in his larger Vertebrata of the Cretaceous Formations of 

 the West (1875), which forms the second volume of the quarto 

 series of the reports issued under the auspices of the Hayden 

 Survey. 



Even larger than this is his famous "Book i " often facetiously 

 called "Cope's Bible" which, however, properly bears the title 

 The Vertebrata of the Tertiary Formations of the West and is the 

 third volume of the quarto series of the Hayden reports. It con- 

 tains over a thousand pages and more than one hundred plates, 

 and was published in Washington in 1883. According to Cope 

 himself it included descriptions of "the vertebrata of the Eocene 

 and of the Lower Miocene, less the Ungulata." He says: "There 

 are described three hundred and forty-nine species, of which I have 

 been the discoverer of all except thirty-two. They are referred to 

 one hundred and twenty-five genera." In further detail he says: 



"The most important results which have accrued to paleon- 

 tology through the researches here set forth, are the following: 

 i. The discovery of the Laramie genus Champsosaurus in Ter- 

 tiary beds. 2. The discovery of Plagiaulacidae in Tertiary beds. 

 3. The discovery of the characters of five families and many 

 genera and species of the Creodonta. 4. The discovery of the 

 characters of the Periptychidcz and its included genera. 5. Of 

 the Meniscotheriidce. 6. Of the Phenacodontidcz and its genera. 

 7. The discovery of the characters of the suborder of Condy- 

 larthra and of the phylognetic results of the same. 8. The dis- 

 covery of the characters of the Pantolambididce; and 9. Of the 

 suborder Taligrada and its implications in phylogeny. 10. The 

 discovery of the Anaptomorphida of the Prosimiae. u. The 

 reconstruction of Hyracotherium; and 12. Of Hyrachyus. 

 13. The discovery of numerous Marsupialia in the Lower Mio- 

 cene. 14. The discovery of the phylogenetic series of the Canidae; 

 and 15. The same of the ancestors of the Felidae." 



In his letter of transmittal Hayden well describes this volume 

 "as one of the most important contributions to the rich field of 



