536 



WINDS OF THE GLOBE. 



Addendum to Zone No. 15. 



Observations on the Indian Ocean, caleulateJ Ijy the Meteorological Institute of the Nether- 

 lands, under Captain Coruelissen's direction. Given in percentage of the entire number of 

 observations. 









Relative Prkvalence op Winds from the 











Different Points of the Compass. 









NE.or 





S. E. or 





S.W.or 





N.W.or 



Calm 









North. 



betw'n 

 N.&E. 



East. 



betw'n 

 S. &E. 



South. 



betw'n 

 S.&W. 



West 



betw'n 

 N.&W. 



or va- 

 riable. 







Spring 





11 





19 





56 





10 



4 



38(a). 





Summer 





2 





8 





81 





8 



1 



Between 80°-90° E. 





Autumn 





39 





14 





29 





14 



3 







Winter 





59 





7 





15 





17 



3 







Spring 





6 





8 





41 





37 



8 



39(«). 





Summer 





1 





5 





87 





6 



2 



Between 90='-100° E. 



I 



Autumn 





39 





14 





25 





18 



4 





Winter 





55 





3 





8 





4 



4 



ZONE J^o. 16. 



Latitude 10° to 15° North. 



The data for the study of the winds of this zone consist of observations made at over 

 22 stations on land, for an aggregate period of 46 years 1 month ; and at sea 

 for 26 years 5 months. The distribution is as follows : — 



"Where observed. 



No. of 

 stations. 



Aggregate length of time. 



Pacific Ocean, 







3254 days = 8 years 10 months. 



America, 





.5 



3 years 3 months. 



West Indies, 





2 



7 years 2 mouths. 



Atlantic Ocean, 







nearly 7 years. 



Cape Verde Islaii 



ds, 



i 



1 year 5 months. 



Africa, 





7 



7 years 4 months. 



Red and Aral)iaii 



Seas, 





over 2 years. 



Asia, 





5 



20 years 5 months. 



Bay of Bengal, 







nearly 4 years 6 months 



• China Sea, 







over 4 years. 



Gulf of Siara, 







34 days. 



Islands of the Pacific, 



2 



6 years 6 months. 



(Nos. 1 to 5.) Pacific Ocean, east of longitude 180°. 



Computed from observations for an aggregate period of 2706 days, collected and classified, from 

 the logs of the different sailing vessels, at the United States Naval Observatory, iinder the direction 

 of Captain M. F. Maury, Superintendent. 



