20 AVOYAGETO 



1776. "Wed: and, in like manner, the latitude was found to be 

 28° 30' n" North. 



Mr. Varila informed us, that the true longitude was 18° 35' 

 30", from Paris, which is only 16° 16' 30" from Greenwich j 

 lefs than what our watch gave by 1 4' 30". But, far from look- 

 ing upon this as an error in the watch, I rather think it a con- 

 firmation of its having gone well ; and that the longitude 

 by it may be nearer the truth than any other. It is farther 

 confirmed by the lunar obfervations that we made in the 

 road, which gave 16' 37' 10". Thofe made before we ar- 

 rived, and reduced to the road by the watch, gave 16" 33' 

 30": and thofe made after we left it, and reduced back in 

 the fame manner, gave i6° 28'. The mean of the three is 

 16' 30' 40". 



To reduce thefe feveral longitudes, and the latitude, to 

 the Pic of TenerifFe, one of the moft noted points of land 

 with Geographers (to obtain the true firuation of which, I 

 have entered into this particular difcuffion\ I had recourfe 

 to the bearing, and a few hours of the fhip's run after leav- 

 ing Santa Cruz road; and found it to be is' 11" South of 

 the road, and 29.' 30" of longitude Weft of it. As the 

 bafe, vjhich helped to determine this, was partly eftimated, 

 it is liable to fome error; but I think I cannot be much 

 miftaken Dr. Mafkelyne, in his BrittJ}} Mariners Guide, 

 places the Pic in the latitude of 28'' in' 54". This, with the 

 bearing from the road, will give the difference of longitude 

 43', which confiderably exceeds the diftance they reckon 

 the Pic to be from Santa Cruz. I made the latitude of the 

 Pic to be 28° 18' North, Upon that fuppofition, its longitude 

 will be as follows: 



By 



