24 
REPORT OF THE PROFESSOR OF ETHNOLOGY 
AND ARCHAEOLOGY. 
The Professor of Ethnology and Archeology reports that during 
the current year a regular course of lectures on his branch was de¬ 
livered in the Lecture Hall of the Academy. The audience was 
large, and a growing interest was manifested in the subject. 
The collections in this department are in process of installation 
in the new building and a portion of them is satisfactorily dis¬ 
played. With proper facilities all the objects illustrating this im¬ 
portant branch of natural history in possession of the Academy, 
can now be grouped together and opened for inspection. 
D. G. Brinton, M.D., 
Professor of Ethnology. 
REPORT OF THE PROFESSOR OF INVERTEBRATE 
ZOOLOGY. 
The Professor of Invertebrate Zoology respectfully reports th^t 
during the past year he has delivered two lectures, one upon “Corals 
and the Coral Islands,” and one upon “Zoological Gardens.” 
The additions to the museum during the year have been neither 
numerous nor important. 
The course of lectures planned and mentioned in the report of last 
year was not delivered owing to preparation for and departure 
upon an expedition to Bering Sea, the Arctic Ocean and adjacent 
shores. 
Permission was obtained from the Treasury Department of the 
United States to accompany the U. S. Revenue Cutter “Bear” 
during her cruise in the Arctic Ocean. The Aleutian and Seal 
Islands and the northern shores of Siberia and Alaska were visited. 
Collections were made at all points where it was possible. Collec¬ 
tions of plants, birds, marine forms and native implements were 
among the most important made. The skin of a walrus and the skins 
of a male, female and young fur seal were obtained. For per¬ 
mission to secure the skins of the fur seals the Academy is indebted 
to the special favor of the U. S. Treasury Department. 
As the collections were not received until after the close of the 
fiscal year, a report upon them must be deferred. 
A course of six lectures on the “ Influence of the Environment 
