[ 6 35 ] 
that, notwithstanding the wind, they are not to be 
ftemmed ; fuch as the channel of Bahama in Florida, 
and fome others. But there is no certain regula- 
tion for thofe other currents, which happen in the 
ftraits along the coafts, and even at lea. There are 
fcarce any means found out to obferve them j nor 
have there as yet been any refearches made after the 
caufes; nor indeed have any applied themfelves to 
obferve their exadt variations. I do not doubt, but 
that great advances would be made in the knowledge 
of the fubjedt, if a conliderable number of obferva- 
tions were colle&ed, and compared together ; and 
that the coming of thofe currents, and even their 
duration might be forefeen. The following is what 
I have obferved, which I produce in order to be 
joined to fuch as may be made hereafter. 
Obfervations made at Bizerty, in Barbary, in the 
year ly 24. 
In the voyage I made into Barbary by the king’s 
order, I was at Bizerty, formerly called Hippoza- 
ritos : this town is fituated on the northern coaft of 
Barbary, in the kingdom of Tunis, within four 
leagues weft of the gulph of Carthage, bearing north 
and fouth with Cape Carbonaire in the ifland of Sar- 
dinia, and in 37 degrees 18 minutes north latitude. 
Before this little town the fea forms a fmall gulph, 
being about a league north and fouth, by three leagues 
eaft and weft. The town was built at the end of this 
gulph, upon a canal, which ends in a large pond or 
lake, which extends fouthward and weftward ; three 
leagues long and as many broad. At the end of this. 
there 
