the Meteor of Auguit 18, 1783. 4<9 
{peak to this Jaf interval with the fame certainty as to the 
other; if, however, it be exact, and fuppofing found to move 
1106 feet in one fecond of time, and the fame in the upper 
regions of the atmofphere as here below, which, however, 
may be very different, its diftance from me, at its extinction, 
mutt have been about 120 miles, and its perpendicular altitude 
above the earth’s furface about 40 miles. 
I have added a fcheme and a {mall fketch, prefuming by 
that means to convey a clearer idea of what I faw. The alti- 
tudes, azimuths, &c. are not merely from eftimation. After 
my return from the Eaft Riding, I went to the very {pot, where 
I had feen the meteor on the 18th of Augutt. The road, as 
in the fcheme, being exa@ly ftraight from my ftation, both 
towards and from York, no mittake can arife in that refpec. 
With all the circumftances clearly and forcibly imprefled on 
my mind, I watched till fome remarkable {pot in the {ky pre- 
fented itfelf at the fame place in which I had feen the meteor 
itfelf form, crofs the road, vanith, &c.: then, with a theo- 
dolite, I took the feveral bearings, which may be the more 
relied on, as I repeated the operations three different times, on 
different fpots, which agree furprifingly well for meafures 
where no minute exaétnefs can be expected, I have marked 
minutes in the fcheme, becaufe the refults gave them, without 
any pretenfion to fuch nicety. 
Iam, &c. 
NATH. PIGOTT. 
Vou. LXXIV. Ooo 
