Miscellanies. | 361 
MISCELLANIES. 
DOMESTIC AND FOREIGN. 
PROCEEDINGS OF SCIENTIFIC SOCIETIES. 
1. Proceedings of the American Philosophical Society, Philadel- 
phia.* October 18, 1839.—Mr. S. C. Walker, in behalf of the Com- 
mittee on the paper entitled, ‘* Astronomical Observations made at 
Hudson Observatory, &c., by Elias Loomis, Professor of Nat. Phi- 
los., &c. in the Western Reserve College, Hudson, Ohio,” made the 
folleuae report :-— 
he memoir of Prof. Loomis contains a description of the Hudson 
Observatory, erected at the expense of the Western Reserve College 
at Hudson, Ohio. The building consists of a central portion, fifteen 
feet square upon the inside. From a circular platform of ten feet di- 
- ameter, rise twelve small cherry columns, that sustain a hemispheric 
dome of nine feet internal diameter, covering a five and a half feet 
equatorial of 3.8 inches aperture, by Simms. The dome rotates on 
ten lignumvite wheels of five inches diameter. The equatorial rests 
on an insulated pier, descending six feet below the surface of 
ground, and rising three feet above the platform, which is itself re 
six feet above the surface of the ground. 
The eastern wing is ten feet by twelve, and seven al a half feet 
high, and covers a Simms’ transit circle of eighteen inches diameter, 
graduated on platinum to 5’, and reading to single seconds by three . 
Troughton’s microscopes. The telescope has a focal length of thirty 
inches and an aperture of 2.7 inches. The transit circle, and a clock 
by Molyneux, are each mspunied on separate insulated piers. The 
western tains no ; but serves fora lodging-room, 
computing-room, 
Professor oni gives the fellcwitg results for the latitude of the 
Hudson Observatory. 
(2) ‘ it 
By u. c. Polaris, Aug. 8, Latitude41 14 39.8 
10, ey 
mies 36.8 
ee 14; 37.8 
sc” 35, 40.8 
bie! Bf 36.6 
mean, 41 14 38.1 
h has accumulated since our last Pek of the Proceedings of the 
hewitt Philosophical Society, that we are under the necessity of abridging to 
some extent the abstract given by the Society pee 
