[ >73 ] 
tude, and between the 53d and 78th degrees of 
longitude ; which projection may equally lerve for 
the leparate maps, I may find it convenient to make 
of different parts of my diftriCf, as well as of the 
whole of it, which is comprehended in this fpace : 
but thofe charts intended for the ufe of the navy 
I fhall compofe on Wright’s or Mercator’s pro- 
jection. . 
Mr. Wright has had an opportunity, lad fpring, 
of rectifying the latitude of the ifland of coudre, 
where he obferved the tranfit of Venus, of which 
he has acquainted you : I had likewife an opportu- 
nity, on my way to this place, to reCtify the latitude 
of St. John’s ifland, at the entrance of port joy,, 
where I made my obfervations in 1765, as I had, at 
that time,, no other indrument, but an adronomical 
quadrant, of the old condruCtion ; which I found 
to be very erroneous, when I. compared it with. 
bird’s,, on its arrival at Louifburg, fome time, after-- 
wards: Mr. Wright and I, , from very careful ob-- 
fervations with this lad indrument, have now deter- 
mined the latitude of the place, where my obferva— 
tions were, made in 1765, by reducing it from Fort,- 
Amherd, the place we now. obferved at,, to be 
46 s i f o" North., 
It gave me great fatisfa&ion, to have an- oppor- 
tunity of examining bird’s adronomical quadrant, , 
lad year, in New- York province, in determining 
the latitude of 41 0 , . for fettling, the boundary line, 
between that colony and New Jerfey, with the fame 
indrument Mefh. Mafon and Dixon u fed. for deter- 
mining the boundary line between Penfylvania and 
Maryland.: on .this .occafiQD,., Mr.* .rittenh.quse 3 ... 
mi 
