[ 499 3 
And 1,443^ = 2,082 ; And 2,082 — 1 ;= 1,08c. 
0,0786. 
Then 1,082 x 0,0786 = 0,084 feet, the fall 
fought. 
Which is about 1 inch ; and is about half an 
inch more than the greateft fall obferved by Mr. 
Labelye. 
LXIV. An Account of the Earthquake in 
the Wefi Parts of Cornwall, July 1 $th 
17 57. By the Rev. William Borlafe, 
M. A. F. R. S. Com?nunicated by the Rev. 
Charles Lyttelton, LL.D. Dean of Exe- 
ter, F. R. S. 
R«ad Jan. 26. N Friday the iyth of July, 1757. 
1758 a violent (hock of an earthquake 
was felt in the weftern parts of Cornwall. 
The thermometer had been higher than ufual, 
and the weather hot, or calm, or both, for eight 
days before ; wind eaft and north-eaft. On the 
14th in the morning, the wind drifting to the fouth- 
weft, the weather calm and hazy, there was a 
fhower. The afternoon hazy and fair, wind north- 
weft. The barometer moderately high, but the 
mercury remarkably variable. 
21 c j 
Sff 2 
Oa 
