76 HISTORY OF ASTRONOMY. 



the ninth, and tenth magnitudes. Professor de Morgan, 

 who was requested by Mr. Bishop to find a name for this 

 planet, has recommended Urania. 



On the 1st of September, 1854, the thirty-first asteroid 

 was discovered at the Washington observatory, by Mr. 

 James Ferguson. It was so close to the planet Egeria, of 

 which Mr. Ferguson was in search, that it was observed 

 along with it on the 1st. Another night's observation 

 proved that both were planets, the new one appearing of 

 about the same degree of brightness as Egeria. Mr. Fer- 

 guson has been employed for several years with the great 

 equatorial telescope at Washington, and has spent a large 

 portion of his time in observing the places of the newly- 

 discovered asteroids. This is the only instance in which 

 any American astronomer has been the first discoverer of 

 a primary planet. Mr. Bond, of Cambridge, was the first 

 discoverer of the faint satellite of Saturn, and several 

 American astronomers have enjoyed the honor of having 

 first discovered a comet. The honor of naming this new 

 planet was left to Mr. Ferguson, and he has selected the 

 name of Euphrosyne. The period of revolution appears 

 to be greater than that of either of the other asteroids, 

 and its inclination to the ecliptic is greater than any ex- 

 cept Pallas. 



On the 28th of October, 1854, two new asteroids were 

 discovered at Paris, one of them by M. Goldschmidt, the 

 other by M. Chacornac. The former appeared as a star 

 of somewhat less than the tenth magnitude, and has been 

 named Pomona; the latter somewhat smaller than a 



