S E B. i E S B . Z O N i: 2 . L A T . 



T 10° S. 



569 



(No. 26.) 



Ascension island. 



Computed from observations made by Mr. McSorley, under the direction of Capt. Kitchen, 

 during the years 1854 and 1855 





Relative Prkvali 



.N<^E ( 



)F WlKDB FEOM THE 









Monsoon 1 







DlFPEItEHT Po 



NTS OF THE OoMPASS. 









S*^ 



influence 



s. 







p=i 





w" 





k 





.f« 









3 & 







Time of the 





hH 





iJj 





JJi 





%a, 



cj 



V 



ircction of 



fo 







year. 





n^ 





(-•y: 





gm 





Ss' 



u^ 





resultant. 



C^ 



Direction. 







t: 



WS 



■s 



° a 



3 



^l 



■s 



^t 



o 







r! 





g 





% 



^5 



w 



mi 



m 



mt. 



^ 



^l 







K 





fc< 



January 











2 



9 



17 



] 











2 













February 







1 



1 



11 



13 



1 



1 





















March 











8 



11 



Ifi 











1 

















April 











2 



11 



IS 















1 













May 











• 5 



15 



10 



1 







1 













Juno 











3 



15 



11 



j 







1 













July 











4 



17 



10 



1 





















Auaust 











3 



18 



1(1 



I 





















Septemlier 











•6 



17 



1(1 



1 





















October 







1 



2 



'11 



(1 



! 





















Noveinlier 











2 



\1 



]() 



! 





















December 







(1 



1 



9 



20 











1 













Spring 











Ul 



37 



■i.1 



1 u 



1 



2 



s. 



21°44'E. 



.83 



N. 80° W. 



.02 



Summer 



tl 







10 



50 



31 



i 







1 



s. 



34 21 E. 



.87 



N. 73 E. 



.09 



Autumn 







1 



7 



01 



32 



: 











s. 



33 1 E. 



.88 



N. 80A E. 



.09 



Winter 







1 



4 



29 



50 



2 : 1 







3 



s. 



17 45 E. 



.83 



P. 74 W. 



.16 



The year 







2 



31 



1(J7 



155 



2 1 



1 



u 



s. 



28 25 E. 



.85 







(Nos. 27 and 28.) 



Atlantic Ocean, longitude 15° west to 13° east. 



From ob-^ervations for an aggregate period of over one year, collected and classified, from the 

 logs of nuiuerous sailing vessels, at the United States Naval Observatory, under the dii'cction 

 of Capt. M. P. Maury, Superintendent. 







KeLATITI: PitEVALEKCE OF WlNTis FROJ\ 



~ 



Differ 



™ 



POIKTS OF 



^ 







Monpoo 



I 















THK Compass 



















£.5 



influenc 



'3. 



•3 











































"•■C 







Place of 



Time of the 























^ 





t> 







■2 



Direction of 









o 



observation 



year 



_. 









H 





W 





\s 













O 0! 





resultant. 



° 5 



Direction. 





O 







fe 



fe 

 fc 





c 



0! 





03 



03 



m 



7! 



t.0 



m 



^ 



% 

 i 



^ 

 S 



fe 

 ^ 













(S 



a 



27. Lat. r 

 5°tolO^S., , 

 lone. 10° 1 

 to i5° W. 



Spring 



















9 



in 



248 IS 



13 































s. 



44'' 33' E. 



.97 



N. 57i°E. 



.01 



102 



Summer 















2 



2 



12 



79 9 



































s. 



47 33 E.? 



.97 



N. 44 E. 



.0(3 



35 



Autumn 



















4 



5 



GV 28 































'0 



OS. 



41 23 E.? 



.97 



S. 45 W. 



.05 



33 



Winter 

 The year' 

 Spring 



















2 



fl 



124 24 



1 































OS. 



s 



43 8 E. 



44 9 E. 



.98 



97 



S. 9 W. 



.02 



53 

 323 



28. Lat. f 











(1 



1) 



'i 







3G Kii IG 



\i 



13 







.') 















o's. 



5 17 E.? 



.76 



S. 59 K. 



.16 



35 



5^tolO°S., 



Summer 















1 



3 



ir, 



21 5 IS 



12 



11) 



2 



4 







1 







s. 



]] 11 E.? 



.(JS 



N. 824 E. 



.19 



33 



long. i 



Autumn 











(1 



(I 







3 



3 9i 15 



17 



2fi 



11 



9 















1 s. 



28 51 W.? 



.79 



S. 87 W. 



.31 



31 



10° W. 1 



Winter 



























19 



2 



fi 



1 



19 



2 



2 







2 



3 



s. 



10 33W.?? 



.59 



N. 19 W. 



.10 



19 



to 1.3° E. [ 



The year' 







... 





























... s. 



1 



6 7 W. 



.68 







lis 















. 



Com 



pal 



-d fi 



om 



the 



resu 



Itai 



ts f 



jrtl 



e se 



asoi 



IS. 















72 June, 1875. 



