20 
A VOYAGE TO 
1776. 
Auguft. 
< ---r 
Weft; and, in like manner, the latitude was found to be 
28° 30 7 11" North. 
Mr. V aril a informed us, that the true longitude was 18 0 
35'' 30", from Paris, which is only 16 0 16' 30" from Green¬ 
wich ; lefs than what our watch gave by 14 7 30 77 . But, far 
from looking upon this as an error in the watch, I rather 
think it a confirmation of its having gone well; and that 
the longitude by it maybe nearer the truth than any other. 
It is farther confirmed by the lunar obfervations that we 
made in the road, which gave 16 0 37' 10". Thofe made be¬ 
fore we arrived, and reduced to the road by the watch, 
gave 16° 33' 30"; and thofe made after we left it,, and redu¬ 
ced back in the fame manner, gave 16 0 28A The mean of 
the three is 16 0 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 fituation of which, I 
have entered into this particular difcuftion), I had recourfe 
to the bearing, and a few hours of the fliip’s run after leav¬ 
ing Santa Cruz road; and found it to be i2 / n 7 South of 
the road, and 29" 3a' 7 of longitude Weft of it. As the 
bale, which helped to determine this, was partly eftimated, 
it is liable to fome error; but I think I cannot be much 
miftaken. Dr. Malkelyne, in his Britijh Mariner's Guide , 
places the Pic in the latitude of 28° 12 7 54 77 . This, with the 
bearing from the road, will give the difference of longitude 
43 7 , which conftderably exceeds the diftance they reckon the 
Pic to be from Santa Cruz. I made the latitude of the Pic 
to be 28° 18 7 North. Upon that fuppofition? its longitude, 
will be as follows *. 
By 
