SECRETARY'S REPORT 223 



Table 2. — Comparison of 1961 and 1962 rainfall, Barro Colorado Island (inches) 



BUILDINGS, EQUIPMENT, AND IMPROVEMENTS 



The only major construction on Barro Colorado last year was a new 

 boathouse. This will provide additional space for protection of the 

 launches, speedboats, and canoes. 



Maintenance activities on the island continued as usual. All houses 

 were painted and their roofs repaired ; new rain gutters were installed ; 

 the motor of the launch Snook and the three generators were com- 

 pletely overhauled ; all the trails were cleared ; and extensive repairs to 

 the animal cages and pens were completed. 



The expansion of the library also continued. New equipment was 

 provided for both the library and the office. 



Two guards were hired to maintain a constant patrol of the island. 

 Tliis has greatly alleviated the problem of poaching. 



OTHER ACTIVITIES 



The director continued research on the behavior of passerine birds 

 and primates. Edwin L. Tyson completed liis study of bat popula- 

 tions on the island, and Robert M. King finished work on the cyto- 

 taxonomy of Panamanian Compositae. A new scientific aide, 

 Thomas Crebbs of Eutgers University, has begim a study of the 

 ecology, population structure, and behavior of several species of 

 Fringillidae in the Canal Zone and adjacent parts of the Republic 

 of Panama. 



