SECRETARY'S REPORT 141 



and other members of the Institute of Inter- American Affairs, and 

 members of the staff of the United States Embassy; Ambassador 

 Mariani of Italy with his family; Dr. David Potter, of Clark Uni- 

 versity; members of the student class of the Balboa Junior College 

 under the leadership of Prof. George O. Lee ; and William Burgoyne. 

 The outstanding scientific event of the year was the week-long Con- 

 ference on Corrosion and Deterioration, in which the island partici- 

 pated, and which was attended by a host of delegates from the United 

 States. More than 40 of the delegates visited the island as part of 

 the program. 



RAINFAUL 



In 1950, during the dry season, rains of 0.01 inch or more fell on 

 30 days (84 hours), and during the wet season (8 months) on 207 days 

 (947 hours) ; a total for the year of 237 days (1,031 hours) . Rainfall 

 was 7.44 inches above the 26-year station average. November and 

 December were the rainiest months (54 days, 352 hours), 41.64 inches, 

 36.3 percent of the year's total. The dry season, while below average, 

 was considerably wetter than that of 1949. 



Table 1. — Annual rainfall, Barro Colorado Island, C. Z. 



Year Total inches Slaiion avtTage 



1925 104.37 



1926 118.22 113.56 



1927 116.36 114.68 



1928 101.52 111.35 



1929 87.84 106.56 



1930 76.57 101.51 



1931 123.30 104.69 



1932 113.52 105.76 



1933 101.73 105.32 



1934 122.42 107.04 



1935 143.42 110.35 



1936 93.88 108.98 



1937 124.13 110.12 



1938 117.09 110.62 



1939_. 115.47 110.94 



1940 86.51 109.43 



1941 91.82 108.41 



1942 111.10 108.55 



1943 120.29 109.20 



1944 111.96 109.30 



1945 120.42 109.84 



1946 87.38 108.81 



1947 77.92 107.49 



1948 83.16 106.43 



1949 114.86 106.76 



1950 114.51 107.07 



