168 



west of the line of this Ridge, whether they are of solid 

 rock, or of loose material, whether stratified or not, and 

 whether the material is of local origin. And furthermore 

 what is the direction of the axis of these "drift" hills? 

 And are there elsewhere such ridges as we have described ; 

 and what is their direction ? The Essex Institute would 

 do an important work if its members should systemati- 

 cally collect the facts concerning the whole drift deposit 

 of the Merrimack valley. When these are gathered and 

 arranged, we can popularize for this region the intensely 

 interesting subject of the glacial age, which now does not 

 have the practical hold of the popular imagination that 

 its merits, and the proximity of its phenomena, demand. 



At the close of the lecture the subject was continued 

 by remarks from Dr. A. H. Johnson, Messrs. W. P. 

 Upham, C. H. Higbee and others, and a vote. of thanks 

 was passed to Mr. Wright for his instructive paper. 



George West, George Newcomb and C. A. -Shaw were 

 elected resident members. 



REGULAR MEETING, MONDAY, DECEMBER 20, 1875. 



MEETING this evening. The PRESIDENT in the chair. 

 Records read. ' 



Robert C. Mills, Charles R. Mills, George W. Benson, 

 E. K. Benson, Lewis F. Miller, S. F. Chase, D. B. Kim- 

 ball and Abby R. Knight were elected resident members. 



