ABSTRACTS OF PAPERS 207 



RECENT GEOLOGICAL WORK IN GULF COAST OIL FIELDS 

 BY E. T. DUMBLE 



The concluding paper of the afternoon dealt with the stratigraphy of 

 central Tennessee, especially with reference to the significance of the dis- 

 tribution of the various formations. Illustrated by lantern slides; dis- 

 cussed by Messrs. Kaymond, Ulrich, and Eeeds. 



MOHAWKIAN AND CINCINNATIAN ROCKS OF CENTRAL TENNESSEE 



BY R. S. BASSLER 



(Abstract) 



The Carters, Lowville, and Kimmswick formations, of Black River age ; the 

 Curdsville, Hermitage, Bigby, Cannon, and Catheys formations, of Mohawkian 

 age, and the Leipers formation, of Cincinnatian age, all rather easily distin- 

 guished faunally and lithologically, prove in the course of extensive mapping 

 to be developed quite unequally on different sides of the Nashville dome. For 

 example, the Carters limestone is thickest on the western side, while the over- 

 lying Lowville limestone is thickest on the eastern side ; the Kimmswick lime- 

 stone outcrops only on the southern flank, while the next younger formation, 

 the Curdsville limestone, is found only on the northern side. The chief rea- 

 son for these differences is believed to be due to oscillation, and the great 

 development of phosphatic rock in the Hermitage, Bigby, Catheys, and Leipers 

 formation is considered as likewise connected with the same phenomenon. 



At 5.30 p. m. the Society adjourned until the next day. 



Thursday evening at 7 o'clock the annual dinner of the Geological 

 Society of America and affiliated societies was held at College Hall of 

 Amherst College, in which our members participated. 



Session of Friday, December 30 



, President Stanton called the general section of the Society to order 

 Friday morning at 9.30, while the vertebrate paleontologists continued 

 in special session. 



REPORT OF THE AUDITING COMMITTEE 



'V 



The chairman of the Auditing Committee read a statement attesting 

 to the correctness of the Treasurer's accounts, and it was then voted that 

 the report be accepted. 



PRESENTATION OF PAP UPS 



The first paper on the program comprised new evidence on the Chester 

 problem, presented by the author, who discussed critical sections in the 

 area under discussion to prove his points. 



