373 
felt in England, November 18, 1 795. 
At Kenilworth, in Warwickshire, (Mr. Johnson,) six minutes 
after eleven. At Ashover, in Derbyshire, (Mr. Milnes,) about 
a quarter past eleven. At Wirksworth, in the same county, 
(Mr. Bennet,) about twenty minutes past eleven. And at 
Wollaton, in Nottinghamshire, (Mr. Gregory,) between 
twenty and twenty-five minutes past eleven* From this, 
about five minutes and a half are to be deducted, for the dif- 
ference of longitude between Bristol and Wollaton. Great 
allowance must likewise be made for the uncertainties which 
attend observations of this kind, from the different manner of 
keeping clocks, and from other circumstances too obvious to 
be mentioned ; but it must be remembered, that those circum- 
stances are as likely to occasion error on one side as on the 
other ; and, when the whole is fairly considered, it seems to 
me impossible not to feel inclined to think that the earthquake 
was felt considerably later in the north-east than in the south- 
west ; in other words, that it moved progressively from the 
south-west to the north-east, or nearly so. 
Supposing, however, that some of the abovementioned ob- 
servations of time are of too uncertain a nature to admit any 
inference to be drawn from them, others among them are 
of a very different kind. Mr. Johnson, whose accuracy may 
be safely relied on, appears to have remarked the time of the 
earthquake with great precision, and he states it to have been, 
at Kenilworth, at six minutes past eleven. Mr. Gregory, 
to whose exactness we may equally trust, says the blast was 
heard, at Wollaton, between twenty and twenty-five minutes 
* I have omitted mentioning the time expressed in one or two of the foregoing let- 
ters, because it appears not to have been observed with much attention. 
