8 PROCEEDINGS OF BROOKLYN MEETING. 



J. Stevenson upon the latter point, and by W J McGee. The paper is 

 printed in later pages of this volume. 



The next paper was — ■ 



EVIDENCES AS TO THE CHANGE OF SEA LEVEL 

 BY N. S. SHALER 



Remarks were made by J. W. Spencer, Joseph Le Conte, A. C. Lane 

 and the acting President. The paper is printed in full in this volume. 



The following paper was read : 



EXTENSION OF UNIFORMITARIANISM TO DEFORMATION 

 BY W J MCGEE 



The paper was discussed by N. S. Shaler, Joseph Le Conte, R. P. 

 Whitfield, F. D. Adams and J. W. Spencer. The paper is printed in 

 full in this volume. 



Passing over several papers whose authors were absent, the next paper 

 was — 



DRUMLINS IN THE VICINITY OF GENEVA, NEW YORK 

 BY D, P. LINCOLN 



Remarks upon the paper were made by George H. Barton. 

 The following paper was presented : 



GLACIAL ORIGIN OF CHANNELS ON DRUMLINS* 

 BY GEORGE H. BARTON 



Contents 



Page 



Progress of the study of drumlins in Massachusetts 8 



Symmetry of drumlins a protection against erosion 9 



Erosion of drumlins 9 



Characteristics of postglacial erosion 9 



Cliaracteristics of glacial erosion 9 



Origin of the channels 11 



Progress of the Study op Drumlins in Massachusetts 



In connection with the work of the United States Geological Survey and under 

 the direction of Professor N. S. Shalernearly eighteen hundred drumlins have been 

 mapped and studied in Massachusetts. The time allowed in which to cover so large 



* Published by permission of the Director of the United States Geological Snrvey. 



