78 



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.) 



1 Atlantic Ocean. 



South Sea. 



} Atlantic Ocean. 

 South Sea. 



Mean temp, 

 of the air 

 observed 

 on the 

 Continents. 



r 



o 



CO 







Names 

 of the 

 Observers. 



Quevedo 

 Humboldt 

 Idem . . 

 Churruca . 

 Idem, . . 

 Perrins . . ! 

 Quevedo 

 Idem 



Quevedo ,~\ 

 Humboldt 1 

 Perrins . . 

 Quevedo . 



Idem . H 



Temp, 

 of the 

 Ocean 

 at it's 

 surface. 

 (Cent. 

 Th.) 



^0^^00090 

 Oi O *b go <k 60 0 65 



H {^(^ ^ O 



qo CO io 



r-i r-t r— i f- ' I— l — 



Period of the 

 Observation. 



OOo^OOCOOOO 



qooonnnoocooo 

 . . . <u . . 



. . . % B • • *c3 



GO O CO G^ GO 

 OOOOOO 



CO CO 00 00 CO CO 



• • !-§"§ = 



Longitude. 



CM — O CM GO CO CM 

 ^ CM GO SO *° 



^-(Ot^OO^--*^ 

 ^$>.i— 1—1 iQ i-h O 



GO "SO r}< GO CM\ »C 



GO CO 'O O 00 GO 

 CO (C >o Q 



Latitude. 



^ £ z £ tri c/5 

 cbto<#<ocMco>-oeM 



GO rt ©| 10 



o^ocogo^oco^ogo 



GO GO GO GO GO GO GO GO 



£ Jz; £ c« c/5 cc 



CO O ^ O <0 CO 

 CM GO GO GO GO Tf« 



O O 0? CM O O 

 ^ Tf« ^ 



