Dr. Davy's observations on the 
% 9 ° 
Hour. 
Temperature of the Sea. 
5 
- 64, 
6 
66,75 
7 
- 66 
9 
67 
10 
- 67, 5 
12 
66 
2 P. M. 
67 , 5 
4 
65, 5 
Now, judging from the change of temperature, we appear 
to have suddenly passed from the bank of Lagullas into the 
current that flows round its borders. Major Rennell, I be- 
lieve, observes, that at the border of the bank, the current is 
strongest ; the high temperature of the water there, at least 
ten degrees above the neighbouring sea, is readily accounted 
for on that idea. We appear to have continued in the cur- 
rent seventeen hours, the course the ship was going was 
nearly due east, her average rate 7.65 miles an hour, and 
hence, supposing we were sailing immediately across the 
stream, as probably we were, or very nearly, its width may 
be inferred to be about 130 miles; a distance little differing 
from that commonly assigned to it. Having traversed this 
current, we seem from the low temperature of the water for 
two hours, to have been passing a bank twelve miles wide, 
and then to have entered a second current running in the 
same direction as the first. 
I have alluded to a connection between these currents and 
the covering of dense mist, that occasionally occurs on the 
Table-mountain, called the “ Table-cloth.” The connection 
is evident, and readily explained. The phenomenon only 
