(36) 
United States Geological Survey. 
Oberlin College. 
Hawaiian Experiment Station. 
Academy of Natural Sciences, Philadelphia. 
(c) Exploration. Exploration of various parts of the North 
American mainland, the West Indies and the Philippine 
Islands has brought together 24,961 specimens. The great 
majority of these, and especially the more important ones, 
have already been incorporated in the permanent collection. 
2. Puant PicTurE Couiection. This was not notably 
increased during the year, but 669 plates and photographs 
were added. Plates and photographs were withdrawn for 
use in the museums and herbarium as occasion demanded. 
Museums 
1. Accessions. No attempt was made to increase greatly 
the exhibits of either museum, as the care of the already ac- 
cumulated material taxed the capacity of the museum force; 
in all 1,203 specimens were added ; this material was secured 
chiefly by members of the staff during explorations, and by 
miscellaneous gifts. 
he bulk of previously acquired material having now been 
installed, we are in a position to solicit and purchase material 
to more fully illustrate the plants and plant products, thus 
increasing the usefulness of the museum. 
2. PREPARATION OF MATERIAL FOR EXHIBITION AND 
AppLiances. The plan briefly outlined in my last report 
has been carried out, and all specimens, with the exception of 
duplicates, have been installed. 
Mechanical appliances, as heretofore adopted and used, 
have been continued and new ones put into service as partic- 
ular cases called for. 
The following standard parts of museum equipment have 
been secured: 
(2) Exhibition blocks. Wooden blocks of the following 
sizes and quantities, for the mounting of specimens, were 
ebonized : 
