PAPERS BY CHAMBERLIN, SHALER, AND BELL. 523 



His principal record was made by his reports to the state geologist of 

 Pennsylvania, but he published many papers in the transactions of the 

 American Institute of Mining Engineers, of which he was a zealous mem- 

 ber and officer; as also of the American Philosophical Society, American 

 Society of Mechanical Engineers, Academy of Natural Sciences, American 

 Geological Society, and American Association for the Advancement of 

 Science. 



J. P. L. 



Some general announcements were made, after which the President an- 

 nounced the first paper of the meeting, entitled — 



SOME ADDITIONAL EVIDENCES BEARING ON THE INTERVAL BETWEEN THE 



GLACIAL EPOCHS. 



BY PRESIDENT T. C. CHAMBERLIN. 



The communication was discussed by Mr. W J McGee, Professor John R. 

 Procter, Professor I. C. White, Mr. F. J. H. Merrill, and President Cham- 

 berlin. The communication and discussion are printed in full among the 

 memoirs, forming pages 409-480 of this volume. 



The Society then listened to a paper on — 



TERTIARY AND CRI<:TACEOUS DEPOSITS OF EASTERN MASSACIJUSKTTS. 



BY N. S. SHALER. 



This communication was discussed by Mr. G. K. Gilbert. It will bo 

 found among the accompanying memoirs, pages 443-452. 



In the absence of the author, the next paper was read by title: 



ON GLACIAL PHENOMENA IN CANADA. 

 BY ROBERT BELL, B.A.SC, M.D , LL.T)., ETC. 



It will be found printed in full among the memoirs, pages 287-310. 



After a short recess the Society reassembled and listened to the oral com- 

 munication represented by the following abstract: 



