1895.] NATURAL SCIENCES OF PHILADELPHIA. 585 



REPORT OF THE PROFESSOR OF ETHNOLOGY 

 AND ARCHAEOLOGY. 



The Professor of Ethnology and Archaeology 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 that 

 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 



