the Latitude and Longitude of York* 425 
obfervations in the Obfervatory at York ; from which, by eight 
comparifons, none difagreeing above 0,018 of an inch from 
the mean, I find, that the quickfilver at the fea flood 0,063 
of an inch higher than at York. The barometers were made 
by Ramsden, and they agreed together to 0,005 P art °f an 
inch. We may later alfo expert to get the mean height of 
the barometer and thermometer, as there are feveral gentlemen 
that obferve them every day, particularly Mr. Wyvil and D& 
White at York, and Mr. Chomonley at Branfby. 
I remain, Sir, with great regard, &c. 
EDW. PIGOTT. 
May 26, 1786. • 
