parencies, but large as these numbers are, they are no 
indication of the labor involved in producing the results 
desired. 
Through the faithful and efficient work of Miss Muenche- 
hofe, the reference file of photographs grows apace. This file 
now numbers 29,848 prints. The file of negatives numbers 
23,881. 
It has been stated repeatedly that the Museum possesses a 
collection of 35,000 lantern slides, but it has never been 
possible to make the fullest use of this valuable material since 
it is uncatalogued. A beginning has now been made on this 
important work. A new system of filing based on the Dewey 
Decimal System is being developed, which when completed 
will enable one to locate quickly slides on any subject desired. 
Nearly 2,000 slides have already been arranged in this file. 
Accessions.—The principal accessions for the year are a 
collection of about 150 birds’ skins from Miss Evelyn Purdie 
and a collection of minerals, rocks, shells and birds’ eggs from 
Clinton G. Abbott. Gifts from Charles Bohem, Mrs, H. S. 
Dewey, Miss Annie Miller and Arthur E. Krause have helped 
in beautifying the Children’s Room. G. Seymour Willson 
- kindly loaned us a set of negatives of gold mining in South 
America from which prints were made. 
13 
