Remarks. 

 (The temperat.of the 

 Ocean is nearly equal 

 to the mean atmosphe- 

 ric temp, of the month; 

 the temp, of the air ex- 

 presses the mean heat 

 of the year under dif- 

 ferent parallels.) 



• Atlantic Ocean. 



\ Atlantic Ocean. 

 | Indian Sea. 



| Atlantic Ocean. 



Indian Spq 









r > 



c ^ 



Mean temp, 

 of the air 

 observed 

 on the 



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Names 

 of the 

 Observers. 





Quevedo . 

 Idem . . 



Perrins 

 Quevedo 

 Humboldt 

 Quevedo . 

 Perrins 

 idem . 



Humboldt 

 Churruca 

 Perrins 

 Quevedo . 



Perrms 

 Churruca . 

 Perrins 



Temp, 

 of the 

 Ocean 



at it's 

 surface. 

 (Cent. 



Th.) 



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Period of t 

 Observatio 





April . . 

 March . 



March . 

 April . 

 June . . 

 March , 

 April 

 May . t 



May . . 

 October 

 March . 

 April. . 

 March . 

 April . . 

 November 

 May . . 













ngitud 





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