402 ASTRONOMICAL OBSERVATORIES. 



West Point, i^EW York. 



West Point Observatory. 



Longitude from Washington, 12™ 22.71« E. 



Latitude, 41^ 23' 31" :N". 



Director : Col. P. S. Michie, Ph. Dr. 



No regular work is done at this observatory beyond the practical 

 instruction of the cadets in the use of the various instruments and the 

 solution of the usual problems connected with the determination of 

 latitude, longitude, time, etc., and work for local time, and local co- 

 ordinates. 



In 1882 a fine and permanent observatory was erected, designed to 

 combine the latest and most improved observatory plans and to be 

 equipped well, and intended to be a regular working observatory. 



WiLLETs Point, New York. 



Field Observatory — Engineer School of Application. 



Longitude from Washington, 13'" 04.39« ± 0.14^ 



Latitude, 40° 47' 21.59" K ± 0.08". 



Authority for longitude and latitude: Longitude determined by tele- 

 graphic time-signals from Unired States Naval Observatory, 

 Washington; latitude determined by observations with zenith 

 telescope. 



Director : General Henry L. Abbot. 



Instruments : 



(&) Meridian transit instrumeyits {four): One; makers, Lingke & 

 Co., Silesia; aperture, 2i inches; magnifying power, — diameters; focal 

 length, 30 inches. One, Russian transit, aperture, 2.0 inches; Stack- 

 pole & Bro., New York ; focal length, 30 inches. One, Trouohton, 

 aperture, 2 inches; Troughton, London; focal length, 30 inches. 

 One, Stackpole; aperture, 2 inches; Stackpole & Bro., New York; 

 focal length, 24 inches. 



(c) Equatorial instrument: Makers, Fauth & Co., Washington; 

 aperture of objective, 5^ inches; magnifying powers of eyepieces, as- 

 sorted. 



(/) Chronographs: Hipp's; Negus-Morse register. 



(/^) Chronometers : One mean time ; makers, Arnold & Dent. One 

 sidereal ; makers, Lukens, Bond & Son. Both break-circuit. 



{i) Miscellaneous: One portable telescope, equatorially mounted; one 

 zenith telescope — William Wurdemann ; two sextants, Stackpole 

 & Bro. ; one personal equation machine ; one barometer, Green's 

 cistern. 



