704 PEOCEEDINGS OF THE BALTIMORE MEETING 



Vertebrates 



2.00 to 3.15 p. m. 



S. W. Williston : "Environmental relations of the early vertebrates." 



H. F. Osborn: "Environment and relations of the Cenozoic mammalia." 



Mesozoic and Tertiary 



3.15 to 4.00 p. m. 



T. W. Stanton : "Succession and distribution of later Mesozoic invertebrate 

 faunas." 



4.00 to 5.15 p. m. 



W. H. Dall : "Conditions governing the evolution and distribution of Tertiary 

 faunas." 



Ralph Arnold : "Environment of the Tertiary faunas of the Pacific coast." 



Wednesday, December 30 

 Tertiary and Quaternary 

 10.50 to 11.25 a. m. 

 F. H. Knowlton : "Succession and range of Mesozoic and Tertiary floras." 



11.25 a. m. to 12.25 p. m. 



li. D. Salisbury : "Physical geography of the Pleistocene with special refer- 

 ence to conditions bearing on correlation." 



D. T. MacDougal : "Origination of self-generating matter and the influence of 

 aridity on its evolutionary development." 



2.30 to 3.45 p. m. 

 T. C. Chamberlin : "Diastrophism as the ultimate basis of correlation." 



After the reading of scientific papers had been finished the Society met 

 again in general session, and Dr J. M. Clarke proposed a vote of thanks 

 to the citizens of Baltimore, the authorities of the Johns Hopkins Uni- 

 versity, and in particular to the members of the department of geology, 

 for the welcome accorded to the Society and the particularly complete 

 arrangements made for the work of the meeting and the comfort and 

 enjoyment of those in attendance. The vote was most heartily passed, 

 and was responded to by Professor W. B. Clark in behalf of the Balti- 

 moreans concerned. 



