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REPORT ON THE GEOLOGICAL DEPARTMENT. 
By Jostan D. Wurtney, Sturgis-Hooper Professor. 
Durtne the College year 1884-85 a course of forty-eight 
lectures on Economical Geology was given by the Sturgis- 
Hooper Professor, which was attended by about twelve College 
students, mostly Seniors. This course was made more popular 
than it had before been, and special attention was given to the 
mineral and metallic resources of the United States, and to 
their economical development. 
There were no special students in Geology or Lithology. 
Doctor Wadsworth, after the completion of the first part of 
the ‘* Lithological Studies,’ of which there was given in the 
last Report of this Department a full account, went to Europe, 
where he spent most of the year. His object was to make 
himself acquainted with the leading European lithologists, and 
to examine the most important collections in this department 
in England and on the Continent. Every facility was given 
him for the study of such of these collections as he had time 
to visit, and especially those of Vienna, Berlin, and London. 
Dr. Wadsworth has published several lithological papers during 
the year. He has now left Cambridge to enter upon the duties 
of the Professorship of Geology in Colby University, at Water- 
ville, Maine; but the publication of the “ Lithological Studies” 
can be resumed at any time,if the necessary pecuniary arrange- 
ments can be made. A large portion of the work is already 
done, and when published it will complete the eleventh volume 
of the Memoirs of the Museum. The Sturgis-Hooper Professor 
has published one or two brief geographical papers, and also 
prepared the definitions in Physical Geography, Geology, Min- 
ing, and Metallurgy, for the new dictionary to be issued by 
the Century Company of New York. As a special subject of 
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