598 
PROCEEDINGS OF THE ACADEMY OF 
[Dec., 
Specimens have been loaned to Samuel G. Dixon, Henry A. 
Pilsbry, Witmer Stone, Henry Tucker, C. S. Sargent, Thomas Bar¬ 
bour, E. W. Nelson, Robt. Ridgway, Geo. H Girty, Edgar A. 
Mearns, R. W. Shufeldt, Julia A. Gardner, Mary J. Rathbun, and 
H. C. Oberholser. 
Samuel G. Dixon, 
Henry A. Pilsbry, 
Witmer Stone, 
Henry Tucker. 
Report of the Department of Mollusca. 
Work on the collection of mollusks has been confined to the 
study-series during this year, as it has seemed inexpedient to begin 
projected changes in the public exhibition until the alteration of the 
building is completed. Fifteen new storage cases gave opportunity 
for the arrangement of the current additions to the collection, with 
the exception of the Unionidae, which remain unprotected for the 
time being. The dust-proof storage cases now installed number 156, 
each holding 16 trays of 3.38 square feet area. The total space 
now occupied by the dry collection of mollusks is as follows: 
Double table-cases, glazed tops 43, with an area of 2,057 sq. ft. 
Drawers below same 624, “ “ “ 2,121 “ “ 
Storage cases 156, “ “ “ 7,914 “ “ 
Total area 12,092 sq. ft. 
From South America we have received valuable lots from 
Venezuela, collected by Air. S. Brown, of the F. E. Bond Expedition; 
from Ecuador, collected by Mr. S. X. Rhoads, and from Jamaica, 
collected by Dr. Amos P. Brown. Dr. C. M. Cooke, of Honolulu, 
and D. D. Baldwin, of Maui, have contributed needed material 
from the Hawaiian Islands, and Air. A. Haycock gave paratypes 
of the new species discovered by him in Bermuda. Our North 
American collection has been increased by gifts from Alessrs. J. A. 
Allen, J. H. Ferriss, L. E. Daniels, C. B. Aloore, G. H. Clapp and 
many others. 
In the Manual of Conchology a monograph of the sub-family 
Amastrinse has been completed, and our very large collection of these 
snails has been revised and arranged. The American Sphceriidce and 
the mollusks of Bermuda in our collection have been worked over 
by Air. Vanatta. 
