ASTRONOMICAL OBSERVATOlilES. 403 



WiLLIAMSTOWN, MASSAGIHTSETTS. 



Field Mtmorial Observatory. 



Longitiule fioin Wasliington, 15'" 18.G'' E. 



Latitude, 42° 42' 49" N. 



Director: TilUMAN HENRY Safford, Ph. D. 



Ypsilanti, Michigan. 



State Normal School Observatory 



Longitude from Wasbingtou, 20'" lO* W. 

 Latitude, 42° 13' N. 



Authority for longitude and latitude, J. C. Watson. 

 Director: Lewis McLouth, M. A. 

 Instruments : 



{b) Meridian transit instrnment : Maker, Gurley, Alh'vuy ; aperture, 

 li inches; magnifying power, 30 diameters. 



(c) Equatorial instrument : JMaker, A. Clark, Cambridgeport, Mass.; 

 aperture of objective, 4 inches: magnifying powers of eyepieces, 45, 

 90, 144, 210. 



{d) Spectroscope: Brown ii-iG, London, 2 prism. 



(Ii) Chronometer : Sidereal ; maker, Negus. 



