liv ADVERTISEMENT. 



rizon, and is regular like his courfe. Thus, while 

 the Sun is heating, for twelve hours together, with 

 his vertical fires, the fouthern iflands of the South 

 Sea, he cools ihem by a tide of twelve hours, which 

 he extrafts out of the ices of the South Pole, by his 

 horizontal fires. Contrary effecfts frequently pro- 

 ceed from the ilime caufe. 



This order of tides is by no means the fame in 

 the northern part of the South Sea. In that oppo- 

 iîte part of our Hemifphere, the two Continents 

 flill approach toward the North. They pour, 

 therefore, by turns, in fummer, into the channel 

 which feparates them, the two femi-diurnal effu- 

 fions of their Pole, and there they colled, by turns, 

 in winter, thofe of the South Pole, which produces 

 two tides a day, as in the Atlantic Ocean. But as 

 this channel, formed to the north of the South Sea, 

 by the two Continents, is extremely widened to 

 below the 55th degree of North Latitude, or ra- 

 ther, as it ceafes to exifh by the almoft fudden re- 

 treating of the American and the Afiatic Conti- 

 nents, which go off divergently to the Eaft and to 

 the Weft, it comes to pafs, that thofe places only, 

 which are fituated in the point of divergence of the 

 northern part of thefe two Continents, experience 

 two tides a day. Such are the Sandwich Iflands, 

 fituated precifely in the confluence of thefe two 

 Currents, at proportional diftances from America 



and 



