702 
PROCEEDINGS OF THE ACADEMY OF 
[Dec., 
school classes accompanied by teachers. Out-of-town schools have 
visited the museum in a body, while Philadelphia schools, notably 
the High School for Girls, have sent the scholars in sections for the 
study of special departments in regular sequence. 
The classes from the School of Industrial Art have also attended 
regularly for the purpose of sketching the osteological and other 
exhibits. 
Extensive use has been made of the study collections in all depart¬ 
ments by visiting specialists, while specimens have been loaned to 
Robert Ridgway, W. W. Cooke, W. G. Mazyck, M. L. Fernald, 
H. W. Henshaw, J. H. Ashworth, R. H. Howe, 0. P. Hay, R. South¬ 
ern, E. W. Nelson, E. S. Shumann, F. M. Chapman, M. J. Rathbun, 
and H. C. Oberholser. 
A series of mounted mammals of Pennsylvania was contrib¬ 
uted to the exhibition of the State Forestry Association. 
Samuel G. Dixon, 
Executive Curator. 
Report of the Department of Mollusca. 
Accessions to the collection of mollusks have been received from 
66 persons and institutions during the year. 
Valuable material has been collected by several expeditions made 
by members or friends of the Academy. Mr. J. H. Ferriss spent 
four months in Arizona, exploring the Santa Catalina and White 
Mountains, finding an abundant fauna of land mollusks at elevations 
up to 13,000 feet. As the localities had not been visited before by a 
collector of shells and the species are largely local, he secured a large 
number of species new to science and valuable zoogeographic data. 
The collections made have been generously shared with the Academy. 
Doctor Amos P. Brown gave the Academy a collection of the 
mollusca of the island of Antigua, B. W. I., taken by him during the 
summer. It is probably nearly or quite complete for land forms and 
includes also a considerable number of marine shells. 
The Special Curator spent a few days over three months in visiting 
the Hawaiian Islands, chiefly for the purpose of studying land snails 
of the family Achatinellidce, both in the field and in Hawaiian col¬ 
lections. Over 1,000 lots of shells in trays and bottles have been 
labelled and catalogued, and about an equal number remain to be 
worked over. Special attention was given to the deposits of fossil 
land shells, and about 20,000 specimens of fossils were collected. 
