of H.M- S- Chal longer. 
Specific Gravity of Sea Wi 
INDEX. 
OVC 10280. 
1 0275 and 1 0280 
1 0270 
1-0270 
1 0265 
1-0265 
10260 
1-0260 
1-0250. 
1-0250. 
TRACK UF 
H.M S CHALLENGER 
This Chart shows the distribution of Density inthe Surface waters ofthcOocan. 
Ills prepared from the Observations made on board 11MS Chajlenrfcr 
end other Vessels. 
Fojr.'-l byMdbrS 
/ / * '/ 
' 
. 
— \ 
1 \\ 
