174 



ANiSrUAL REPORT SMITHSONIAN INSTITUTION, 1960 



Name 

 Worley, Dr. L, G., 



Brooklyn College, New York. 

 Ziminermaii, John, 



University of Illinois, Urbana, 111. 



Principal interest 

 Wildlife observation. 



Tropical bird physiology. 



VISITORS 



Approximately 209 vistors were permitted to visit the island for 

 a day. 



RAINFALL 



During the dry season (January through April) of the calendar 

 year 1959, rains of 0.01 inch or more fell during 19 days (34 hours) 

 and amounted to 1.91 inches, as compared to 19.31 inches during 1958. 

 During the wet season of 1959 (May through December), rains of 

 0.01 inch or more fell on 182 days (691 hours) and amounted to 92.97 

 inches, as compared to 80.89 inches during 1958. Total rainfall for 

 the year was 94.88 inches. During 35 years of record, the wettest 

 year was 1935 with 143.42 inches, and the driest year was 1930 with 

 only 76.57 inches. March was the driest month of 1959 (0.11 inch) 

 and December the wettest (24.41 inches). The maximum records for 

 short periods were: 5 minutes: 1.30 inches; 10 minutes: 1.65 inches; 

 1 hour: 4.11 inches; 2 hours: 6.33 inches; 24 hours: 10.87 inches. 



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



