CHAP. IV. ] THE CRUISES OF THE ‘ PORCUPINE, 153 
a bottom temperature of 5°2C. We were thus in 
the warm area, and the dead-cold water of the cold 
area lying fifty or sixty miles off, with the bottom 
at a higher level, was completely banked in. The 
bottom temperature here corresponded so closely 
with that of the same depth in the Rockall Channel 
that apparently scarcely a drop of the Arctic in- 
Fic. 26.—Zoroaster fulgens, WYViLLE THomMson. One-third the natural size. (No. 78.) 
draught makes its escape in this direction. The 
dredge here brought up half a ton of Atlantie 
‘elobigerina ooze,’ a load which tested its tackle 
and the donkey-engine to the utmost. The weight 
of the dredge itself with the weight attached was 
8 ewt., so that altogether the burden reached not 
