THE 
AMERICAN 
JOURNAL OF SCIENCE, he 
GEOLOGY, MINERALOGY, &e. 
—— 
“Arr. I.—WNotice of a Rocking Si 
Providence, Septer 
Pror, Sinuran, Sir, 
IT has given me some satisfaction to belicione Recegiated 
with the particulars which Mr. Moore has given us in the 
last number of your Journal, respecting the Durham Rock- — 
ingStone. It is true, as jet intimates, that there are but — 
tocks of this kind as yet known in our country ; still, as 
losity is continually increasing, and the votaries of geo- 
i ily becoming more, numerous, it will not 
» itis believed, before ne will be found to exist 
! ve recently visited one — 
te 
: 
ad 
: - under A, the other under B. 
Doiats it is so exactly poised, that it moves: with the gentlest 
*Fig, 1, Plate 1. 
= ae VII.—No. 2. 26 
