( 1.9 1 ) 
X. Of the Currents at the Streights Mouth J Dy 
Capt. - - - - Communicated by Dr. Hudfon. 
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C Ape Sf artel , and Cape Trafalgar , from the weftern 
Ocean, are known to make the Streights Mouth, 
from whence a Current, in the middle of the Channel 
(which is about five Leagues broad) betwixt the Bar- 
iary and Sfanijh Land, runs, at leaf!, two Miles each 
Hou r, as far as Ceuta Point - and there the two Coafts 
opening about eighteen Leagues diftant from each other, 
the Current does not run above one Mile an Hour, 
and fo continues as far as Cape de Gat , which is 
feventy Leagues up the Mediterranean . Our Mariners 
obferve a Current to fet to die wedern Sea, or the great 
Ocean from Ceuta , along the Barbary Shore ; and, 
from Gibraltar , along the Spanijh Shore j but that 
on the Barbary Shore is generally their common Rout, 
not only as being the freed from Rocks and lefs dange- 
rous, but by reafon that the Tide is much ftronger, than 
it is on the other Side, which the Loner helps the Ships 
out of the Str eights, which are the narrowed betwixt 
the Points of Gibraltar and Ceuta j at which lad Place, 
a Neck of Land extends itfelf a conlid enable Way into* 
the Sea and it’s my Opinion, and that of others, that 
whereas the Current runs, as abevefaid, two Miles an 
Hour againdthis Neck of Land, the Water there meets 
with fo violent an Oppofition in its Courfe, as occafions 
it to rebound with fo much Force, that Part of it re- 
turns back .alqpg the fame Coad, and fo out of the 
$ freights Mouth } which, with the fmal! Tide that fe-ts 
out on the Sfanijh Shore, it’s believ’d, may exhaud a 
confiderable Part of that Current, which continually fets 
Vol. XXXIIF. E e 4 j n 
