Between 

 Scotland and 

 Rockall. 



242 DEPTHS OF THE OCEAN chap. 



The density increases from the surface to the bottom, but with 

 varying rapidity ; 

 through the first 

 100 metres it in- 

 creases rapidly, 

 and also inthedis- 

 continuity - layer 

 between 600 and 

 1 100 metres. 



Fig. 168 shows 

 the conditions on 

 the 7th August 

 1910, at Station 

 loi, between 

 Scotland and 

 Rockall, in that 

 branch of the Gulf 

 Stream which 

 flows towards 

 northern Europe. 

 The salinity at the 

 surface is here i 



Fig. 167.— Temperature (broken line), Salinity (continu- 

 ous line), and Density (dotted line) at Station 65, 

 a little north of the Sargasso Sea (25th June 1910). 

 Depth in metres. 



per thousand lower than at Station 65 near the Sargasso Sea, 



^otaiwa 101. 



2&S0 ihno 



A-no dioo 



o' I" 2° 3' 4' S" 6° T 



Zbso 



iiiO 



■ 9" 10' // 



dbon 3bSO%o 



' /d" /T' /S" /S/" ?U' C 



Fig. 168. — Temperature, Salinity, and Density at Station ioi, a little 

 east of Rockall (7th August 1910). Depth in metres. 



due to admixture of fresh water ; but from about 900 metres 

 down to the bottom the salinity, temperature, and density 



