142 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1948 
problems. High temperatures and humidities, especially the latter, 
with the growth of fungus and other organisms, create serious prob- 
lems. Elsewhere in this report reference is made to the large number 
of such studies undertaken by Eastman Kodak Co., as a result of which 
it is possible to avoid many of these difficulties. It is believed that 
this phase of practical studies should be expanded, and facilities will 
be granted to concerns and government units that have need for such 
information. 
BUILDINGS 
The main laboratory building, 32 by 55 feet, contains laboratories, 
a dining room, dormitory, and photographic darkroom. It is in 
excellent condition, showing neither termite damage nor rot. Three 
buildings—the Barbour guest house, the Chapman house, and the 
“Zetek” Z-M-A house—each provide adequate lodging for four per- 
sons, and the first two have ample laboratories. The kitchen building 
has on the second floor a dormitory for six persons. Other buildings 
are the masonite building used by the labor force; the caretaker’s home; 
the library; Zetek’s quarters, a concrete-block building used as office 
and living quarters for the resident manager; and the kodak test 
building, which is itself a termite test in addition to housing Eastman 
Kodak’s exposure tests for corrosion and deterioration. 
The remaining buildings are five small structures, each located at the 
end of one of the island trails. All are available for the use of scien- 
tists, each structure accommodating two persons. These buildings are 
also practical termite tests. 
A paper entitled “Inspection of Test Buildings Treated for Ter- 
mites on Barro Colorado Island, Canal Zone, Panama,” by Thomas 
K. Snyder and James Zetek, was published in the March 1948 issue of 
Pests and Their Control, Kansas City. Those interested in the effec- 
tiveness of treated wood in termite control will find this report of 
value. 
IMPROVEMENTS MADE 
Both the coal-tar creosoted and cypress water tanks were in such 
bad condition that replacements were necessary, and a concrete tank 
of 4,000 gallons was built at a cost of about $400. This tank is for 
safe drinking water. Since plans had to be made for a much more 
adequate gravity-flow water supply, a site was selected for a new 
14,000-gallon concrete water tank on the Snyder-Molino trail. The 
area has been cleared and leveled, and the necessary galvanized pipe 
procured. Work on the tank will be started when the rains subside. 
The present dock, owing to the silting of the bay and the low level 
