Xl ADVERTISEMENT. 



*' Eaft, running two knots, at leaft, in an hour." 

 (Captain Cook, December, 1776.) 



Here, accordingly, is another tide which de- 

 fcended diredly from the South Pole. It appears 

 that this tide was regular and diurnal, that is, a 

 tide of twelve hours ; for Cook adds, a few pages 

 afterwards : *' It is high-water here, at the full and 

 ** change days, about ten o'clock j and the tide 

 *^ rifes and falls about four feet." 



In the illands of O-Taiti, in 17 degrees, 29 mi- 

 nutes. South Latitude, and 149 degrees, 35 mi- 

 nutes Longitude ; and of Ulietea, in 16 degrees, 

 45 minutes, South Latitude : " Some obfcrvations 

 *' were alfo made on the tide ; particularly at Ota- 

 ** heite and Ulietea ; with a view of afcertaining 

 " it's greatefh rife at the firft place. When we 

 " were there, in my fécond voyage, Mr. fVa/es 

 ** thought he had difcovercd, that it rofe higher 

 *' than I had obferved it to do, when I firfl vifited 

 " Otaheite in 1769. But the obfervations we now 

 ** made proved that it did not; that is, that it ne- 

 ** ver rofe higher than twelve or fourteen inches 

 " at moft. And it was obferved, to be high-water 

 *' nearly at noon, as well at the quadratures, as at 

 " the full and change of the Moon." (Captain 

 Cook, December, 1777. 



Cook 



