a Thunder -Jlorm in Scotland. 6 q, 
account of the effects ; and your own reflexions will lead you 
much farther than any thing I could fuggeft. 
I have the honour to be, with the greatefl refpect, &c. 
P. BRYDONE. 
P. S. I cannot fend away this letter without adding, in a Pofl> 
fcript, that on Friday the 1 ith of Auguft laft, early in the 
morning, we had a pretty fmart fhock of an earthquake. I 
was awaked by it, and felt the motion moil diflinXly for four 
or five feconds at leaf!. It appeared as if the bed had been pulled- 
gently from fide to fide feveral times. The motion was nearly 
north north-well; and fouth-eafl, as far as I could judge from 
the motion of the bed. The windows were violently fhaken, 
and made a great noife, which, I believe, was miftaken by 
many people for a noife accompanying the earthquake. I im- 
mediately rofe to look at my watch,, and found it twenty 
minutes after two. It was a dead calm, the morning clofe and 
warm, with fmall drizzling rain, and, although the moon 
was but two days pall the full, fo dark that I could not per- 
ceive the hour without finking a light. It was felt in almofl: 
every houfe in this neighbourhood, and all the way from this 
country to the weft coafl of the ifland, where it feems to 
have been more violent than here ; but to the eafl of this place 
it was very little felt. 
Perhaps it may not be improper to mention the flate of the 
weather for fome time before and after this event, as it may 
poilibly have had fome influence: upon it. The drought was 
very great till the 2zd of July, when it rained a little; and 
this was repeated, though in fmall quantities, and generally 
accompanied by high winds, till Thurfday the 27th, when it 
blew- 
