340 Dr. bl agden the Heat of 
ward : the temperature of the fea continued nearly at 6 
Next day, the 30th, our latitude at noon was 35° 44', only 
18 miles farther to the fouthward, though in the opinion of 
the feamen aboard, as well as my own, it had blown at leaf!: 
as hard on this as any of the preceding days, and we had not been 
able to carry more fail ; confequently it may be concluded, that 
fome current had fet the flip 20 miles to the northward. To 
know whether this was the Gulf-ftream, let us confult the 
thermometer. At half after nine in the forenoon of this day 
the heat of this water was 76°, no lefs than eleven degrees 
above the temperature of the fea before w^e came into the 
current ! 
Towards evening the wind fell, and we flood N.W. by N. 
clofe-hauled. As the fea ftill ran very high, and the flip fcarcely 
went above two knots an hour, we did not make lefs than three 
points of lee-way on this tack ; the courfe we made good, 
therefore was W.N.W. which, on the diftance run by noon 
next day, gave us about fixteen miles of northing ; but that 
day, the ift of Odtober, our latitude was 36° 22', 3-8 miles 
farther to the north than we had been the day before ; the dif- 
ference, 22 miles, muft be attributed to the Gulf-ftream. This, 
however, is only part of the effedt which the current would 
have produced upon the fliip if we had continued in it the 
whole four and twenty hours ; for, though we were ftill in the 
ftream at five in the afternoon of the 30th, as appeared by the 
heat of the water being then above 75 0 , and at eight in the 
evening the heat being ftill 74 0 , yet by fe veil next morning we 
were certainly got clear of it, the heat of the fea being then 
reduced to its former ftandard of 65°. On this occafion, there- 
fore, we did not crofs the ftream* but having fallen-in with it 
.obliquely 
