9 



courses, — one on Economical Geology, which was attended by 

 students in the fourth year of the Engineering Course of the 

 Lawrence Scientific School and by special students ; the other on 

 Dynamical Geology, attended chiefly by teachers of Harvard 

 University and of the schools in Cambridge and the adjacent 

 towns. In the course of Economical Geology, Dr. Wadsworth 

 gave the lectures on Building Materials. 



During the summer one professor from a Western college 

 pursued a course of Micro-litliology under Dr. Wadsworth's 

 direction. 



The Sturgis-Hooper Professor spent the summer months, from 

 June 1 to September 15, in examining various museums and 

 scientific collections in Italian, German, Danish, Belgian, French, 

 and English cities. He also made certain geological examina- 

 tions, with reference to proVjlems coming up for discussion in the 

 Second Part of the " Climatic Changes." The localities visited 

 were at the base of the Italian Alps, and along the northern edge 

 of the glaciated region of the northern slope of that chain, in 

 Bavaria and Austria. 



Large additions have been made to the geological library 

 during the past year, and it is expected that we shall soon be in 

 possession, either by exchange or purchase, of all the publica- 

 tions of the great geological surveys now going on in Europe. 



