80 PROCEEDINGS OF THE AXX ARBOR MEETING 



Still remain the same as they were at the organization of the Society, 

 when a dollar conld buy more than twice as much as it does now. 



During the long period now closing I have not missed a meeting of 

 the Society or of the Council, except during the two years of my enforced 

 absence in the Arctic, when my able successor, Prof. ( '. P. Berkey, stepped 

 into the breach. I was deeply touched by the generou? contribution 

 which the Society made to the Crocker Land Expedition to assist in 

 bringing me home. The close and harmonious association with my col- 

 leagues during all these years has been most pleasing. This, with the 

 service rendered to our science, is what makes the Secretaryship of the 

 Geological Society of America worth while. It is a real recompense for 

 the hours and hours of labor necessarily devoted to the discharge of the 

 many and sometimes onerous duties connected with the position. 



Session of Saturday Morxixg, December 30 



The morning session was called to order by President Schuchert, in 

 the auditorium of the Xatural Science Building, at 9.50 o'clock. 



TITLES AXD ABSTRACTS OF PAPERS AXD DISCUSSIOXS THEREOX. PRESEXTED 



BEFORE THE MORXIXG SESSIOX 



GEOLOGICAL h'ECOXXAISSAXCE IX MOXGOLIA 

 BY CHARLES P. BERKEY 



(AJjstract) 



The data covered by this paper were gathered during the past field season, 

 while acting as geologist for the Third Asiatic Expedition of the American 

 Mnsenm of Xatural History, X'ew York. 



Five months were spent in the deserts and mountain ranges of central Asia. 

 An itinerary of over three thousand miles gave opportunity for widely ex- 

 tended observations. As much attention as possible was given to geologic 

 structure, stratigraphic succession, formational subdivisions, paleontologic 

 content, deformation history, and physiographic development. More definite 

 statements can be made on these questions than were previously available. 

 The account is intended to cover an advance summary of the investigation 

 and its results. 



Presented in abstract extemporaneously. 



Discussion 



Mr. D. F. HiGGixs : Remarkable is the fact of the great thickness of post- 

 Paleozoic sediments in Mongolia. Near Xan-K'ou Pass, northwest of Peking, 

 I have measured about 20,000 feet of later Proterozoic sediments of von Richt- 



