ASTKONOMICAL OBSERVATOKIES. 



241 



CINCINNATI OBSEEYATOEY. 



The Cincinnati observatory owes its existence to the 

 labors of Professor O. MJMjfrdiftll. Tn il years 1841 

 and 1842, a society was organized in Cincinnati, called 

 the Cincinnati Astronomical Society, the object of which 

 was to furnish the city with an observatory. Eleven 

 thousand dollars were subscribed in shares of twenty -five 

 dollars each ; and a site for the building was given by 

 Nicholas Longworth, Esq. It consists of four acres of 

 ground on one of the highest hills on the eastern side of 



CINCINNATI OBSEBVATOEV. 



the town. In June, 1842, Professor Mitchell visited 

 Europe to purchase a telescope. At Munich, he found 

 an object-glass of 12 inches aperture, which had been 



tested by Dr. Lamont, and pronounced one of the best 



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