STUDY IV. 187 



Tides, the one running from the North-Weft, and 

 the other from the South-Eaft ; that they dafli 

 their roaring billows up to the clouds, and con- 

 vert the feparating ftrait into an enormous mafs of 

 foam. The Orkneys lie a httle under the Latitude 

 of Berghen, and in the prolongation of the nor- 

 thern coaft of Norway, that is, at the confluence 

 of the polar effufions and of their counter-cur- 

 rents. 



Other illands of the Sea are in fimilar pofitions, 

 as we could prove, did room permit. The channel 

 of Bahama, for example, which runs with fo much 

 rapidity to the North, between the Continent of 

 America and the Lucayo iflands, produces, round, 

 thofe illands, by it's encountering the general Cur- 

 rent of that Sea, Tides the moft tumultuous, and 

 limilar to thofe of the Orkneys. 



Thefe counter-currents to the courfe of the At- 

 lantic Ocean produce, then, our European and 

 American Tides, which fet In to the North on the 

 coaft, while it's general Current runs fouthward, 

 at leaft in the Summer time. I could adduce a 

 thoufand other obfervations refpeding the exift- 

 ence of thefe contrary Currents , but a fingle one, 

 more general than thofe which I have quoted, will 

 be fufficient for my purpofe, both from it's import- 

 ance and it's authenticity, being the firft of all thofe 



which 



