ABSTKACTS AND DISCUSSIONS OF PAPERS 413 



Professor Schuchekt expressed his appreciation of I'rofessor Smith's work 

 in elucidating the Triassic problems of North America. 



TRIASSIC DEPOSITS OF JAPAN 

 BY H. YABE 



Discussion 



Professor Smith stated that the Middle Triassic is represented in Japan. 

 In commenting on the fauna, he noted the differences exhibited by the ammon- 

 ites and the similarity of the other forms when contrasted with North Amer- 

 ican types. He designated the differences as provincial. 



CORRELATION BETWEEN THE TERRESTRIAL TRIASSIC FORMS OF WESTERN 



NORTH AMERICA AND EUROPE 



BY RICHARD S. LULL 



Eead by Charles Sclmchert. 



Discussion 



Professor Merriam noted the inherent difficulties in correlating continental 

 with marine formations, since land vertebrates occur, as a rule, where there 

 are no marine deposits. 



Professor Smith remarked that a case in point is shown on the border be- 

 tween Idaho and Utah, where the land and marine Triassic are 15 miles apart 

 and yet it is impossible to correlate across. 



COMPARISON or MARINE VERTEBRATES OF WESTERN NORTH AMERICA 

 WITH THOSE OF OTHER TRIASSIC AREAS 



BY JOHN C. MERRIAM 



The meeting then adjourned. 



DINNER 



On Wednesday evening tlio momlters of the Society joined with the 

 Geological Society in a diiuici' gi\cn at tlic l^ngineers' Cluh. in San Fran- 

 cisco. 



Skssiox ok TiintsDAY, August o 



This meeting of the Society was called to order by Dr. Timotby W. 

 Stanton at 2.'M) o'clock, in liacon Hall, room 20(5, University of C'alit'or- 



