SERIES B. ZONE 21. LAT. 10° TO 15° S. 



677 



(Nos. 30 to 33.) Indian Ocean. 



From observations for an aggregate period of over 11 years, collected and classified from the 

 logs of numerous sailing vessels at the United States Naval Observatory, under the direction of 

 Capt. M. P. Maury, Superintendent. 



Time of 

 the year. 



i 





^ 



w 



^ "'. 



m 



m ^ 



107 



1 17| 



34 



2 



1 



12 



6 



11 



13 



7 



9 



14 



15 







48 



11 



6 



4 



9 



8 



11 



13 



8 



3 



10 



3 



13 



11 



1 



4 



3 







2 



1 



















12 



13 



3 



1 



6 







7 











5 



6 







10 



7 



7 



3 



i4 



4 



5 



3 



1 



5 



3 



(i 



5 



10 



8 



5 



6 



10 



3 



2| 1 



1 



8 



4 



10 



8 



3 



s 



2 



1 







21 







ol 



12 



12 



7 



1^ 





N 



^ 



fc 



fc 



^ 



22 



3ti 







7 







33 



38 



38 



7 



3 



4 



3 



6 



2 



38 



9 



























1 















8 



2 



2 



2 







2 











24 



12 



6 



3 











5 



4 



26 



18 







2 



5 



1 



10 



3 



.5 



2 



1 



"3 



4 



1 











7 



7 



30. 

 Long. 40° 

 to45°E. 



31. 

 Long. 45° 

 to50°E. 



32. 



Long. 45° 



to70=E. 



33. 

 Long. 50° 

 to 70° E. 



34. 

 Long. 70° 

 to 80° E. 



35. 

 Long. 80' 



to 85° E. 



3fi. 

 Long. 85° 

 to 90° E. 



37. 

 Long. 90' 

 to 95° E. 



38. 

 Long. 90° 

 to 100 'E. 



Spring 

 Summer 

 Autumn 

 Winter 

 The year' 



Spring 

 Summer 



Autumn 

 Winter 

 Tlie year' 



Spring 

 Summer 



Spring 

 Summer 

 Autumn 

 Winter 



L ! Tlie yeari 



r i Spring 

 Summer 

 Autumn 

 Winter 

 The ye:u' 

 Spring 

 Summer 

 Autumn 

 Winter 



[ Tlie year' 

 Spring 

 Summer 

 Autumn 

 Winter 

 Tlie year' 

 Spring 

 Summer 

 Autumn 

 Winter 

 Tlie year' 



2 3 



3! 2 







5 



14 58 



3! 13 



13 24 



2 11 



295 71 



404 157 



51 11 



5 2 



-50 21 



90 13 



26 10 



21 12 



80 114 202 

 33! 49 198 

 41 1 1-22; 163 

 45 641269 



79, 30 



61; 6 



74 10 

 116 56 



8 15 39|100 45 



24' 27 33I 53 



3, 14 29J103 30 



6', 31 491160, 133; 67 



8 S. 



8jS. 

 16 S. 

 35 S. 

 ... S. 



r%. 

 7 s. 



S. 33°45'E. 



S. 32 11 E. 



S. 76 12 E. 



N. 30 31 W. 



S. 42 57 E. 



S. 13 46 E 



S. 22 50 E. 



S. 60 12 E. 



S. 69 44 E. 



S. 44 BE 



S. 02 39 E. 



S. 32 69 E.? 



S. 55 58 E. 



S. 43 40 E. 



S. 46 9 E. 



S. 50 40 E. 



S. 48 49 E. 



S. 57 47 E. 



S. 52 24 E. 



S. 58 11 E. 



S. 73 30 E. 



S. 58 23 E. 



48 16 E. 



46 33 E. 

 57 19 E. 

 66 24 E. 

 53 11 E. 

 53 18 E. 

 51 22 E. 

 53 57 E. 

 39 26 E. 



49 44 E. 



47 53 E. 

 77 20 E. 



48 32 E. 

 33 39 E. 

 51 29 E. 



S. 23° E. 

 S. 27 E. 

 N. 27i E. 

 N. 36 W. 



N. 87 W. 



S. 21 W. 



N. 75 E. 



N. 33 W. 



S. 70 E. 

 S. 20 E. 



.84 



.46 



.75 



.78 



.85 



.82 



.38 



.70 



.72 



.86 



.71 



.49 



.70 



.76 



.79 



.74 



.70 



.74 



.79 i S. 



.73 i N. 



.92 ' S. 



.72 S. 



.69 I , 



73 E. 

 20JE. 

 34 E. 

 43 W, 



53i E. 

 28 E. 

 54 E. 

 41^ W. 



21 W. 

 21 E. 

 45^ E. 

 24^ W. 



63 E. 

 68 E. 

 37 E. 

 61^ W, 



8 W, 



20 E. 



34 E. 



58 W, 



339 



355 

 100 



68 

 134 



69 



88 



4G1 



53 



49 



79 



97 



67 



74 



317 



153 



169 



105 



162 



589 



173 



160 



177 



207 



717 



196 



136 



164 



219 



715 



82 



57 



63 



179 



381 



Computed from llie resultantg for the seasons. 



(No. 39.) Northern Australia. 



Observed at Somerset, Cape York, for 28 months, in the years 1865, 1866 aad 186t. 





Relative Prev.iL! 



noe of Wl 



NDS FROM THE 







Monso 



™ 







Different Points of the Comi 



ASS. 





Direction 



^"^ 



influences. | 





H 



«■ 





,^' 





.•> 









Time of 





.g^ . 



i*! 





S^ 





i'H 



. 



of 



^0 







the year. 





0^ 



um 





gm 





Ste 





resultant. 



OS 



Direction. 







£^ 



wi ' -s 



p4Si 



a 





■s 



^t 



55 





2 S 





S 





fc 



%l\ w 



mC 



in 



nt 



^ 



^t 



o'* 





K*- 





u 



January 



4 



1 



2 



1 







1 



3 



17 



2 











February 



2 



2 



4 



2 



1 



2 



3 



8 



4 











March 



1 



1 



10 



7 



1 



1 



1 



6 



3 











April 



1 



1 



11 



14 



1 



1 



1 



1 















May 











13 



17 



1 



























June 











10 



17 



2 



1 























July 











6 



22 



2 



1 























August 











7 



22 



2 



























September 











11 



16 



1 



1 







1 















October 



1 







12 



16 



1 







1 



















November 



1 



3 



17 



7 















2 















December 



1 







8 



3 



1 



3 



2 



9 



4 











Spring 



2 



2 



34 



38 



3 



2 



2 



7 



3 



S. fi6^59'E. 



.63 



S. 70° E. 



.13 



Summer 







n 



23 



61 



fi 



2 















S. 52 1 E. 



.89 



S. 35 E. 



.43 



Autumn 



2 



3 



40 



9,<A 



2 



1 



1 



3 







S. 69 57 E. 



.77 



S. 77 E. 



.27 



Winter 



■ 7 



3 



14 



6 



2 



fi 



8 



34 



10 



N. 35 2 W. 



.30 J 



N. 54 W. 



.77 



The year 



11 



8 jllO 



144 



13 



11 



11 



44 



13 



S. 65 56 E. 



.50 







73 June, 1875. 



