[ i 89 ] 
of the Walk I found it fell to the Ground, and came 
rolling down the Grafs-walk j and I can compare it 
to nothing better than to that of a violent Grinding 
of Flint-ftoncb, or a Coach and Six upon the full 
Speed upon a Caufway of loofe Stones. I lay at- 
tentive, expeding to fee fomething, and faw a Piece 
of Wood came running before it. When the 
nomenon came to the Water- fide, it twilled up a 
large Stake that Hood in its way, and tolTed it to- 
wards me with much Violence, and immediately fell 
into the Water with the Violence and the Noife of 
a red-hot Mill-ltone. I have feen the Seas break 
again!! a Rock in a Storm, but never faw a greater 
Ferment caufed by the boiling of the Waters. It 
ftaid about a Quarter of a Minute in the Water, and 
then mounted again into the Air, and went rattling 
away, but with much lefs Violence; I heard it for 
about a Quarter of a Mile, and loft it. - N. B. It 
came againft the Wind, and not falter than a Man 
may walk. The Froth and Foam upon the Water 
remained thirty Hours after, when I Ihewed it to 
fome Friends. 
Halfted Eflex, 
1 7-3 1-2. 
Tart of a Letter to W"’ Woodford, M, 2). 
Fellow of the College of Phyficians, London, 
U PON Tuefday the 15th Inftant, between 
Eleven and Twelve, the Sun Ihining very 
bright and hot, without the leaft Cloud, the Wind 
fo calm, that the Water was as fmooth as Glafs, 1 
wasr 
