SECRETARY'S REPORT 



135 



rABLE 2. — Comparison of 1952 and 19')S rninfall, Barro Colorado Island, G. Z. 



(inches) 



Month 



Total 



1952 



Station 

 average 



Years of 

 record 



Excess or 

 deficiency 



Accumu- 

 lated ex- 

 cess or 

 deficiency 



January 



February 



March 



April 



May... 



June 



July 



August- 



September 



October 



November. 



December 



Year 



Dry season 

 Wet season 



2.40 

 .39 

 .11 



5.46 

 12.39 

 11.76 



6.01 



9.11 

 11 13 

 16.96 



9.50 

 12.46 



4.30 



.69 



1.20 



6.04 



9.21 



3.81 



15.93 



15.60 



5.70 



18.27 



19.28 



4.34 



1.S6 

 1.24 

 1.20 

 3.16 

 10.83 

 11.14 

 11.44 

 12.28 

 9.91 

 13.08 

 19.11 

 11.02 



97.68 



104.97 



106. 87 



8.36 

 89. 32 



12.83 

 92.14 



7.46 

 99.41 



+2.44 

 -0.55 



+3.48 

 -1.62 

 -7.33 

 +4.49 

 +3. 32 

 -4.21 

 +4. 59 

 +0.17 

 -6. 68 



+2.44 

 +1.89 

 +1.89 

 +5.37 

 +3.75 

 -3.58 

 +0.91 

 +4. 23 

 +0.02 

 +4. 61 

 +4.78 

 -1.90 



The maximum yearly rainfall of record on the island was 143.42 

 inches and the minimum 76.57 inches. The maximum of record for 

 short periods were as follows: 5 minutes, 1.30 inches; 10 minutes, 1.65 

 inches ; 1 hour, 4.11 inches ; 2 hours, 4.81 inches ; 24 hours, 10.48 inches. 



During 1953 the maximums were: 5 minutes, 0.52 inch; 10 

 minutes, 1.01 inches; 1 hour, 2.65 inches; 2 hours, 3.32 inches; 24 

 hours, 4.85 inches. 



FINANCIAL SUPPORT 



The rates for scientists and visitors now in effect are $3 a day per 

 person for 1-day visitors, $4 a full day for scientists from institutions 

 that support the laboratory through table subscriptions, and $5 a full 

 day for all others. A 1-day visit includes the use of the launch to and 

 from the island, the noon meal, and the guide in the morning. A 

 full day for scientists includes three meals and lodging. 



The following institutions contributed their support to the 

 laboratory through the payment of table subscriptions or grants : 



Research Corporation ,$15, 000 



Eastman Kodak Co 1,000 



New York Zoological Society 300 



American Museum of Natural History 300 



Smithsonian Institution 300 



[The Institution provides other funds as needed.] 



It is most gratifying to report again donations from Dr. Eugene 

 Eisenmann of New^ York and Dr. Herbert F. Schwarz of the American 

 Museum of Natural History. 



Those contemplating a visit to this unique spot of the Americas 

 should cominunicate with the Secretary of the Smithsonian Institu- 



326511—55- 



-10 



