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upon Animal Life” will be delivered in January and February, 1896, 
and during the spring two lectures in addition will be given upon 
the results of the Alaskan and Siberian expedition. 
Respecfully submitted, 
Benj. Sharp, 
Prof, of Invert. Zoology. 
REPORT OF THE PROFESSOR OF HISTOLOGY AND 
MICROSCOPIC TECHNOLOGY. 
The Professor of Histology and Microscopic Technology respect¬ 
fully reports that he has given laboratory instruction in microscopic 
technic and carried on, as heretofore, original research in Bacteri¬ 
ology. 
The gifts of instruments and slides will be reported by the 
Biological Section. 
Samuel G. Dixon, 
Prof, of Histology and Microscopic Technology. 
REPORT OF THE PROFESSOR OF MALACOLOGY. 
The Professor of Malacology reports that there have been added 
to the museum several thousand species of mollusks; among others, 
the types of many new forms of Polyplacophora and Achatinellidse, 
and an alcoholic specimen of Nautilus pompilim may be mentioned. 
The Tectibranchiata have been studied and identified, and an illus¬ 
trated monograph of the group has been published. Other museum 
work has been begun on the identification and classification of the 
South American Bulimi. 
One lecture upon the “Protective Devices of Mollusks” has been 
delivered. A course of five lectures upon the structure and classi¬ 
fication of mollusks, and two lectures upon ‘ ‘ Economic Uses of 
Mollusca” and “ Mollusks of the Atlantic Coast” will be delivered 
during February, March and April of the coming year. 
Respectfully submitted, 
H. A. Pilsbry, 
Prof, of Malacology. 
