NO. I 



SMITHSONIAN EXPLORATIONS, I919 



23 



bedded in a fine sandstone. An idea of the amount of painstaking- 

 work involved in the collection, ]:)reparation and mounting of such a 

 large fossil skeleton may be gained by the fact that after the bones 

 were collected and freed from the enclosing sandstone. 258 working- 

 days were spent in restoring the missing parts, posing the skeleton 

 and making and fitting the supporting iron work. 



The National Museum has now the distinction of having the larg- 

 est existing collection of Titanothere remains. The specimens were 



Fig. 22. — The Rhinoceros-like mammal BrontQthcrium hatchcri mounted 

 in the laboratory of vertebrate paleontology. Photograph by Bassler. 



brought together by the late J. B. Hatcher, working under the direc- 

 tion of Prof. O. C. Marsh, at that time United States Paleontologist, 

 and it is peculiarly fitting that the only skeleton comj^lete enough for 

 mounting should pertain to the species named in his honor. 



Among other important investigations in the mammalian division 

 of the year is a study by Mr. Gidley of the Peccaries of the Cumber- 

 land Cave deposit. This includes the description of three new 

 species, the redefinition of the Pleistocene species hitherto described,. 



