BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 

 Vol 34, pp. 401-418 September 30. 1923 



PROCEEDINGS OF THE PALEONTOLOGICAL SOCIETY 



RECEXT PEOGEESS AXD TEENDS 11^ VEETEBEATE 



Px\LEOXTOLOGY - 



PRESIDENTIAL ADDEESS BY W. D. MATTHEW 



(Delivered before the Paleontological Society Decemher 29, 1922) 



CONTENTS 



Page 



Introduction 401 



Paleozoic reptiles. Permian of Texas and South Africa 403 



Triassic reptiles and amphibians of Germany 405 



Jurassic dinosaurs of Utah and East Africa 405 



Cretaceous dinosaurs of Alberta. Montana, and New Mexico. 407 



The dinosaurs not a natural order 408 



Cenozoic mammals of western America 408 



Primates and man 410 



Foreign researches and discoveries, miscellaneous contributions 412 



Conclusions as to progress of recent years 415 



Some trends of modern work 416 



IXTRODUCTIOX 



In science, as in onr business and personal affairs, it is profitable from 

 time to time to look over the gronncl and see liow much we have accom- 

 plished in recent years. The present occasion would seem to be a suitable 

 one in which to render an account of recent progress in that branch of 

 paleontology with which I am principally acquainted. It is not a -cata- 

 logue of recent publications, nor a summary of their contents that is 

 presented in this address, but rather a report of progress, with some 

 suggestions as to where this progress seems to be leading us. 



The fomidations of paleontology, the documents on which our re- 

 searches are based, consist of the collections of fossils, which are our 

 record of the past history of life. The breadth and solidity of those 

 foundations must determine both the size and the permanence of the 

 structure that we may erect thereon. It is no small part of our duty as 



Received by the Secretary of the Society December 30, 1022. 



XXVII — Bill. Gkoi. Soo. A.m., Vol. 34, 1!)22 (401) 



