C 1 34 - 3 
my account, in 5 0 42' \ by my lad obfervation, and 
in 6° 21' by the former. 
$ Odtober the nth, latit. 49 0 45' N. I obferved 
the following didances of the D ’s neared: limb from 
u Aquilae. 
1 inric by 
the Watch. 
Diit. }) a Hit. ]> ’s 
a Aquilae. center. 
Subtradt 48 " from the diftances for 
the error of the quadrant ; and 3 \ from 
the ]) ’s alt. for the dip of the horizon. 
The watch went, as truly as it could 
well be regulated, to mean time. 
8 h 54 1 
59 
9 l i 
4s 
40 55i 
5 a 
59i 
41 0 
33 4t 
33 45 
33 3 b 
34 
Time by 
the Watch. 
Ait. Q’s 
L. L. 
The error of the quadrant in thefe 
obfervations is — 48' , the dip of the 
horizon 3' 34", and the lat. of the 
fliip 49° 33 / > 3 t and the watch will 
be found too dow for apparent time 
ae long, of the fhip when I took the alti- 
20 50 
54 
545 
5 6 
S6i 
20 4 i 
8 • 
12 
26j 
28 i 
by2 / 56 // . T 
tudes for determining the time was by account 4 0 34',. 
by my fird obfervation 5 0 1 5', and by the fecond 4 
36 i W. and it will be found by this lad 4 0 55' W. 
At noon the Lizard light-houfes bore N. E. by 
N. did. by edimation about eight miles ; and from 
hence I infer that its longitude wed from Greenwich 
is, by account, 4 0 27k By my fird obfervation 5 0 8', 
by the fecond 4 29 4 , and by the lad 4 0 48'. The 
true longitude of this place as determined by Mr. 
Bradley’s cbfervations made there (vid. preface to the 
Nautical Almanack of 1771) is 5 0 15'' W. and there- 
fore the greated error that I have committed in thefe 
obfervations is 45' 4 , and the mean of the three 
differs no more than 26' i from the truth j but I 
apprehend* 
