710 



WINDS OF THE GLOBE. 











June. 





July. 



August. 



j December. 



January. 



February. 1 





lA 





W 





^ 





^ 





w 





H 





^ 





fe 









^ 



^ 



w 



«j 



0! 



03 



^ 



K 



















32 



03 



37 



21 



11 



Zoue 7 



N. 



20 : 5°-20° W. 



5 



5 



4 



11 



14 



25 



20 



15 



8. 



N. 



22 : 15 -20 W. 



5 



3 



7 



12 



25 



18 



22 



9 



4 



4 



9 



14 



16 



19 



24 



11 



8. 



N. 



24 : -20 W. 



10 



11 



10 



6 



12 



19 



25 



8 



13 



6 



7 



13 



18 



17 



16 



9 



" 9. 



N. 



94 : -15 W. 



13 



11 



8 



3 



8 



16 



22 



19 



11 



12 



6 



7 



14 



14 



18 



17 



" 10. 



N. 



331 : -20 W. 



17 



11 



5 



9 



6 



6 



19 



27 



7 



6 



10 



10 



17 



25 



17 



8 



" 11. 



St. 



Michael's, Azores 



3 



42 



2 



12 



1 



13 



7 



20 



6 



24 



4 



13 



7 



20 



4 



22 



" 12. 



N. 



150. Bermuda 



6 



5 



8 



17 



23 



27 



11 



4 



18 



12 



7 



5 



14 



20 



11 



13 



" 12. 



N. 



159 : 45 -70 W. 



8 



9 



11 



15 



21 



21 



9 



6 



11 



s 



7 



8 



13 



15 



21 



16 



" 12. 



N. 



1()4. Madeira 



4 



69 



7 



1 











13 



7 



22 



32 



7 



7 



2 



2 



22 



6 



" 13. 



N. 



64 : 45 -SO W. 



2 



16 



27 



28 



2 



11 



4 



1 



12 



19 



13 



12 



10 



12 



9 



13 



" 13. 



N. 



65 : 40 -50 W. 



6 



37 



33 



11 



2 



3 



5 



2 



9 



25 



22 



9 



6 



13 



9 



7 



" 11. 



N. 



69 : 15 -20 W. 



46 



28 



6 



3 



1 



6 



3 



7 



21 



27 



17 



9 



5 



3 



8 



9 



" 13. 



N. 



70 : 15 -45 W. 



29 



34 



14 



5 



4 



4 



3 



7 



12 



24 



17 



14 



11 



7 



8 



6 



" 14. 



N. 



28 : 15 -45 W. 



13 



30 



28 



8 



6 



6 



4 



5 



24 



51 



17 



3 



1 



1 



1 



2 



" 17. 



N. 



25 : 45 -55 W. 



4 



55 



12 



16 



5 



3 



6 



0,4 



11 



67 



20 



2 



















" 17. 



N. 



31 : 10 -20 W. 



0.5 



0.5 



2 



14 



59 



19 



4 



1 



23 



21 



8 



4 



6 



8 



15 



16 



" 17. 



N. 



32 : 10 -55 W. 



3 



12 



7 



18 



39 



12 



6 



3 



14 



48 



19 



8 



3 



2 



3 



4 



" 18. 



N. 



24 : 18 -55 W. 



1 



3 



11 



44 



33 



6 



2 



0.5; 



8 



21 



25 



29 



10 



4 



1 



2 



" 19. 



N. 



30 : 25 -30 W. 



0.2 



1 



9 



73 



16 



1 



0.2 



O.l' 



0.8 



2 



4 



71 



20 



2 



0.5 



0.5 



" 19. 



N. 



33 : 11 -15 E. 











8 



35 



37 



14 



5 



0.4' 











8 



21 



31 



26 



13 







" 20. 



N. 



26. Ascension Is. 











11 



55 



34 



















1 



4 



34 



57 



2 



1 







" 20. 



N. 



23 : 10 -15 E. 







1 



19 



26 



30 



18 



4 



1 















38 



11 



38 



4 



9 



" 21. 



N. 



29 : 5 W. 13 E. 



3 



2 



4 



32 



32 



19 



4 



4 















100 



















" 22. 



N. 



30. St. Helena 



1 



5 



1 



47 



33 



9 



1 



3 



3 



1 



3 



53 



34 



5 



1 







" 23. 



N. 



35 : 5 -15 E. 



1 



2 



6 



45 



16 



9 



12 



10 







2 



2 



63 



20 



8 



1 



3 



" 24. 



N. 



36 : 5 -11 E. 



3 



3 



4 



35 



19 



12 



12 



11 



0.3 



0.5 



2 



50 



30 



10 



5 



2 



" 25. 



N. 



32 : 15 -20 W. 



17 



14 



4 



9 



7 



13 



14 



23 



18 



12 



8 



10 



8 



12 



10 



12 



« 25. 



N. 



40 : 15 -20 E. 



4 



12 



20 



21 



11 



12 



12 



8 



1 



4 



14 



26 



31 



14 



8 



3 



" 2(j. 



N. 



41 : 0-5 W. 



15 



5 



6 



5 



11 



12 



26 



20 



8 



3 



3 



6 



13 



17 



25 



25 



" 26. 



N. 



44 : 10 -15 E. 



11 



2 



8 



13 



21 



14 



19 



12 



2 



1 



2 



17 



15 



27 



28 



9 



" 27. 



N. 



19 : 55 -65 W. 



19 



10 



2 



3 



12 



23 



11 



19 



17 



10 



4 



4 



11 



22 



14 



18 



" 27. 



N. 



22 ; 45 -50 W. 



10 



2 



2 



7 



8 



25 



20 



27 



13 



6 



4 



5 



11 



22 



14 



24 



« 27. 



N. 



32 : 10 -15 E. 



















17 



3 







3 



15 



21 



18 



23 



" 27. 



N. 



33 : 15 -20 E. 



















11 



5 



8 







8 



22 



23 



24 



North of the regularly-estabhshed trades, there is a zone with prevaiUng north- 

 erly winds, especially in summer, in the eastern part of the ocean, as seen on maps, 

 Plates 5, 6, and 7. To this zone the Azores belong. 



At Funchal, Madeira, the trade-wind is well established in summer, but northerly 

 winds preA^ail in winter, though not regular enough to be called trades. 



The northerly winds of summer between 30° and 40° N. are N. W. rather than 

 N., showing the influence of the heated surface of Southern Europe and Northern 

 Africa. The African monsoon is to be observed in Z. 17, N. 31, and on Plate 5 ; the 

 prevailing wind is N. from December to February and S. from June to August. 



Under the same latitude in the middle of the ocean the N. E. trade is well 

 established at both seasons. (See Plates 5, 6, and 7.) In zone 18 (0°-5° N.) the 

 S. E. trade begins to prevail. 



Along the coast of Africa the S. E. trade is very southerly, especially from June 

 to August in latitude from 5° to 15° S. It must be remembered that a cold marine 

 current flows along this course, and, therefore, the conditions must be like what 

 prevail near the western coast of S. America. (See maps, PI. 5, 6, and 7.) 



The wind blows along this cold current, while on the coast it blows from the 

 cold current to the land ; this gives the S.W. winds of South Africa from 0° to 20° S. 

 The only difference from S. America is, that no such high chain of mountains rises 

 here near the coast. The belt of land under the influence of the sea-winds is more 



