TEMPERATURE AND MOVEMENTS OF THE DEEP SEA. 
125 
particular sounding below 300 fathoms was of a temperature 
below the freezing point of fresh water. The bottom was there 
struck at 384 fathoms ; but in another part we got a much 
deeper sounding, down to 640 fathoms, which was taken at a 
a 
4 i 
point a good deal north : there the surface-temperature lowered 
to between 49 and 50 degrees ; it went down in much the same 
manner as in the other, Until it got to 350 fathoms, which was 
below the freezing point of fresh water ; and from that point to 
