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Magnetism—New Lamp. 207 
Caleb Atwater, Esq. of Circleville, Ohio, is engaged in wri- 
ting Notes on the State of Ohio, a work which is intended to 
embrace the most important features and interests of this new 
and rising State. 
To this laudable effort, and to that of the Western Museum 
Society, whose address is published above, we cordially wish 
success. From the zeal, talent, and industry of the gentlemen 
concerned, we have every reason to expect a happy result. 
We view, with much satisfaction, the efforts which have 
been already made, and are rapidly increasing, to bring to 
light the resources, and to develope the history, of the western 
_ States; and it will always give us. pleasure, if through the — 
medium of this Journal, or in any other manner, we can contri- 
bute to promote them. 
DR ee 
Ant, XXIV. Extract of a Letter from Colonel Gibbs to the 
Editor. 
Sunswics, June, 1818. 
Dear Sir, 
INCE T saw you, I have made only one experiment on 
magnetism. I determined the power of my magnet, as it had 
been shut up in the dark for a long time, and lying down. I: 
N exposed it to the rays of the sun, also lying down, and 
"emote from the iron support, and I found that it had gained 
Mae bavet in 40 mminutes, and 14 oz. power only in five 
urs, 
Art, XXV. 4 New Lamp, without Flame. 
F 
“om the Annals of Philosophy for March, 1818. Communicated by Mr. 
Tuomas GiLL. 
Pus lamp is one of the results of the new discoveries in 
“istry. It has been found, by Sir H. Davy, that a fine 
Wire, heated red hot, and held in the vapour of ether, 
