THE ANTI-TEADES OR PASSAGE WINDS. 



177 



1. Between 5° and 35° W., in doubled per-centages. 



The differences increase steadily from winter and spring until autumn, 

 otherwise they are pretty equal. Therefore, in winter, we have to expect 

 more Easterly winds to the South of 50° N., and fewer South to N.W. 

 winds, than to the Northward of 50° N. ; in spring, the N.W. to N.E. 

 winds prevail to the South of 50° N., while the S.E. and South winds 

 greatly decrease ; also in sutamer, where the S.E. to West winds are in 

 the minority, and the same in autumn, where to the South of 50° N. the 

 North to N.E. winds and South winds are in the minority. 



Accordingly, on an average, outward-bound vessels would do better to 

 keep to the Southward of latitude 50° N., and homeward-bound ships 

 would mostly stand a better chance to the Northward of 50° N. Of course 

 we exclude the special conditions of each month, which may be worked 

 out in the same manner as the above results for seasons. 



2. Between 35° and 55° W. 



In this strip the differences increase considerably until autumn ; in all 

 the seasons we find fewer West to N.W. winds to the South of 45° N. than 

 fco the North of it, so that a ship desirous of avoiding inconvenience from 

 South to S.W. winds, has only to hold off to the Northward in order to 

 continue her outward course on the starboard tack with success. In 

 Bummer and autumn especially we find more N.E. to S.E. winds to the 

 South of 45° N. than to the North of it, but of course it must not be for- 

 gotten that the absolute frequency of Easterly winds is generally less than 

 the Westerly. 



(108.) Captain H. Toynbee, the Marine Supenntendent of the Meteoro- 

 logical Department of the Board of Trade, made a rigid examination of a 

 very important series of logs, kept by Captain J. A. Martyn, of the Eoyal 



N. A. O. M 



