590 PROCEEDINGS OF THE ACADEMY OF [1896. 



The ethnological collections of the Academy have been rearranged 

 and labeled through the attention of the Curator, whose report will 

 supply the information required on that subject. 



I have the honor to remain, 



Daniel G. Brinton, 

 Professor of Ethnology and Archceology. 



KEPORT OF THE PROFESSOR OF INVERTEBRATE 



ZOOLOGY. 



The Professor of Invertebrate Zoology respectfully reports that 

 during the past year he has delivered eight lectures, six on " The 

 Action of the Environment Upon Animals," under the auspices of 

 the Ludwick Institute, and two : "A Summer in Alaska and Si- 

 beria " and "Alaskan and Siberian Natives," in the Popular Friday 

 Evening Course. 



The additions to the Museum have been neither numerous nor 

 important. 



A course of ten lectures on " Invertebrate Zoology " will be de- 

 livered in January, February and March, in the Ludwick Institute 

 Course, and, during the spring, a lecture on " The Sea and Its In- 

 fluence on Animal Life," in the Popular Friday Evening Course. 



Respectfully submitted, 



Benj. Sharp, 

 Professor of Invertebrate Zoology. 



REPORT OF THE PROFESSOR IN THE DEPARTMENT 



OF MOLLUSCA. 



The Professor in the Department of Mollusca respectfully reports 

 that during the year he delivered a course of five lectures upon the 

 morphology of Mollusca and two upon " Economic Uses of Mol- 

 lusca" and " Mollusks of the Atlantic Coast." 



In the Museum considerable progress has been made in the revis- 

 ion of the land mollusks, and many additions to the collection have 

 been received as noted in the report of the Conchological Section. 



Respectfully submitted, 



Henry A. Pilsbry, 

 Prof, of Malacology. 



