I 



A A 



f- 



LOCAL MEAN HOURS 



« 



1 



5 OArS (NOV 13-14, 21-33, 37-38, 



DEC 3-4, 1936, AND FEB 10-11, 



1939) 

 4 DA^S (FEB (8-19, 36-37, APR 30, 



MAy I, AND 9-10, 1939) 

 i DAYS (JUL 4, 33, OCT S, 31-33, AND 



NOV 5, 1939) 

 3 DAYS (mav 17-18, AND 37-38, 1939) 



~K 



...i 



\ 



i/ 



I 



..^ 



^ 



1 



/•-/' 



'-^---^^^ 



a 13 16 



GREENWICH MEAN HOURS 



Fig. 17. Diurnal variation in condensation nuclei over the oceans, from cruise VTI 

 data of the Carnegie 



175 



