3 20 



A VOYAGE TO 



«779- The true longitude of the place is 18' 23' 15" (fixth column). 

 From whence it appears, that, in our run from Greenwich 

 to the Cape, the watch would have led us into an error only 

 of 3' 15" (feventh column), or three miles one quarter ; or had 

 varied 13" of time (eighth column), in four months twenty- 

 three days (ninth column), the period between our leaving 

 Greenwich and our arrival at the Cape. As the Greenwich 

 is the lateft error, the tenth, eleventh, and twelfth columns 

 will be the fame with the feventh and ninth. 



But, on the 22dof February, 1777 (firfl column), at Queen 

 Charlotte's Sound, New Zealand (fecond column), the daily 

 error of its rate was found to be 2",gi (third column). 

 The longitude of this place, according to the Greenwich 

 rate, is 175 25' (fourth column). But having found, at the 

 Cape, that it had altered its rate from a daily error of i',2i, 

 to 2',26, the longitude corrected by this new rate is found 

 to be 1 74° 54' 23" (fifth column). The true longitude of the 

 place being 174 23' 31" (fixth column); it appears, that, in 

 our run from Greenwich to New Zealand, the error would 

 have been only i° 1' 29" (feventh column), or fixty-one 

 miles and a half, even if we had not had an opportunity of 

 correcting its daily error ; or, in other words, that the watch 

 had varied 4' 6" (eight column), in eight months eleven days 

 (ninth column). But the longitude as given by its new 

 rate, leaves an error of only 30' 54'' (tenth column), near 

 thirty-one miles, or, in time, 2' 3", 6 (eleventh column); 

 which has been accumulating during our run from the 

 Cape to New Zealand, or in three months, 28 (twelfth co- 

 lumn). The thirteenth and fourteenth columns requite no 

 explanation. 



TABLE 



