86 Report of the President 



his report on the birds of the Roosevelt South American Ex- 

 pedition, which is nearing completion. 



An elaborate paper by Dr. H. von W. Schulte on the skull 

 of Kogia breviceps, based on the material of this department, 

 has been published in the Bulletin. 



The publications of the department in the current volume of 

 the Bulletin (Vol. XXXVII) comprise n papers, aggregating 

 305 pages, 32 plates, and 45 text figures. Seven of the papers 

 relate to mammals and four to birds ; they were contributed by 

 eight authors, of whom six are official members of the depart- 

 ment staff. 



Illustrated articles relating to Museum expeditions from this 

 department have been contributed to The American Museum 

 Journal by Mr. George K. Cherrie ("To South America for 

 Bird Study"), Messrs. Herbert Lang and James P. Chapin 

 ("Bats of the Belgian Congo"), Mr. Leo E. Miller ("A Search 

 for Scytalopus" and "A Glimpse into the Quichua Country of 

 Southern Bolivia"), Dr. J. A. Allen ("Report from the Asiatic 

 Zoological Expedition"), and Mr. Roy Chapman Andrews 

 ("Little-known Mammals from China"). 



EXTINCT VERTEBRATES* 



Henry Fairfield Osborn, Honorary Curator 

 W. D. Matthew, Curator 



For reasons connected with the entrance of the United States 

 into the world war, it was considered advisable to postpone the 

 usual field work for the season of 191 7. Preparation and re- 

 search were continued during the year. 



Further progress has been made in the preparation of the 



great collection of Cretaceous dinosaurs from Alberta and 



Montana. One complete and two partial skele- 



New Dinosaur j-ons of a new type of duck-billed dinosaur Pro- 

 Exhibits , r- • 1 1 11 e 



cheneosaurus have been finished; a skeleton of 

 a great carnivorous dinosaur and a second and very fine one of 

 Corythosaurus, besides two skulls of Stephanosaurus and two 

 incomplete skeletons of Hypacrosaurus, are in preparation. All 



Under the Department of Vertebrate Palaeontology (see also page 198). 



