MEAN TEMPERATURE OF THE OCEA M^ 
«C. 
■f iTv ■ MB 
^ ^ c: . #•' LaN^^^SPs 
1 
f^Sy^ 
1 
i 
^Tj t ^ 
^ AftiM'-ti C4T«iJ* ^ 
..f 
J 
‘ - r 
\ 
I SOTHERMAL LINES 
SMOWINf; TMK MKAN TKMl’KHATIJKK (FAH") 
OF THK OCEAN AT 
DEPTH OF 800 FATHOMS 
*A „ ihtt* 
TrncJt of H-M S.Cb/dl 
