[ Soo ] 
On the 15th in the morning, the wind frefn at 
north-weft, the atmofphere hazy. Being on the 
lands, half a mile eaft of Penzance, at 10 A. M. 
near low water, I perceived on the lurface of the 
fands a very unulual inequality: for whereas there 
are feldom any unevenneftes there, but what are 
made by the rippling of the water, I found the fands, 
for above 100 yards fquare, all full of little tubercles 
(each as large as a moderate mole-hill), and in the 
middle a black fpeck on the top, as if fomething. 
had i fined thence. Between thefe convexities were 
hollow batons of an equal diameter. From one of 
thefe hollows there iflued a ftrong rufh of water, 
about the bignefs of a man’s wrift, never obferved. 
there before nor fince. 
About a quarter after fix, P. M. the fky dufky, 
the wind being at weft north- weft, it fell quite calm. 
At half paft fix, being then in the fummer-houfe at 
Keneggy, the feat of the Hon. J. Harris, Efq; near 
Penzance, with fome company, we were fuddenly 
alarmed with a rumbling noife, as if a coach or 
waggon had pafled near us over an uneven pavement ; 
but the noife was as loud in the beginning and at the 
end, as in the middle ; which neither the found of 
thunder, or of carriages, ever is. The fafh-cafe- 
ments jarred : one gentleman thought his chair 
moved under him ; and the gardener, then in the 
dwelling houfe (about an hundred yards, diftant from 
us) felt the ftone pavement of the room he was in 
move very fenfiblv. 
In what place the ftrock began, and whether pro- 
greflive or inftantaneous in the feveral places where 
it was felt, is uncertain, for want of accurately de- 
termining the precife point of time in diftant places. 
The 
