Xlviii ADVERTISEMEIÏT. 



Eaft, becaufe it is likevvife one ot thefluices of the 

 North into the South Sea. 



Befides, the height and the tumult of thofe tides 

 of Cook's great River, fimilar to thofe of the bot- 

 tom of Hudfon's Bay, of Waigat's Strait, &c. the 

 diminution of their faltnefs, their general direflion 

 toward the Line, prove that they are formed in 

 fiimmer, in the north of the South Sea, as well as 

 in the north of the Atlantic Ocean, from the fufion 

 of the ices of the North Pole. 



In thefequel of Cook's Voyage, finiQied by Cap- 

 tain Gierke, we fhall find two other obfervations, re- 

 fpeding the tides, which the lunar fyftem is equal- 

 ly incapable of accounting for. 



At the Englifh obfervatory, Sandwieh-Iflands, 

 in the bay of Karakakoo, in 19 degrees, 28 mi- 

 nutes, North Latitude, and 204 degrees Eaft Lon- 

 gitude, *' The tides are very regular, flowing and 

 " ebbing fix hours each. The flood comes from 

 *^ the Eaftward; and it is high-water, at the full 

 *« and change of the moon, forty-five minutes pad 

 " three, apparent time." (Captain Clerke, March, 



I779-) 



At St. Peter and St. Paul's town, in Kamchatka, 

 in c^i degrees, 38 minutes North Latitude, and 1 58 



degrees, 



