374 
CRUISE OF H.M.8. CHALLENGER. 
found to be 1715 fathoms, temperature having risen 
to 34°, showing the limit of the cold current in an 
easterly direction ; this was about 900 miles from the 
first sounding. The current now appeared to turn 
north, and after crossing the Equator in the vicinity 
of St. Paul’s Rocks, to take a course again to the east- 
ward, and so strike down the western coast of 
Africa; for on the 27th Oct. 1873, when 130 miles 
from the Cape of Good Hope, a cold under-current 
(temperature 32*9°) was found at a depth of 2325 
fathoms, which, in all probability, was a branch of 
this now met with. On March the 10th the depth 
was found to have increased to 2200 fathoms ; 
temperature 34°. We trawled and obtained serial 
temperatures during the two following days. The 
weather continued very miserable — heavy rain and 
calms ; so the progress towards Tristan d’Acunha was 
very slow. 
The 13th March possessed an interest of its own 
for those on board, as on that day we crossed the 
course which had been followed some two years and a 
half before in the passage from Bahia to the Cape 
of Good Hope. Thus the actual circumnavigation of 
the world had been successfully completed, and at 
least the greater portion of the cruise happily 
achieved. Since leaving this position, latitude 35° 4 T 
south, longitude 20° 55' west, the vessel had sailed over 
about 44,000 miles. Some two hundred soundings, 
and nearly as many successful dredgings, had been 
