390
(g) Clocks: Two mean time; makers, Robert Molynettx, JamesRitchie & Son.
(ft) Chronometer : Sidereal ; makers, William Bond & Son.
(i) Miscellaneous: Magnetic theodolite; maker, Gambey. Sextant ;makers, Stacikpole & Brother. Inclinometer time-ball, telegraphicapparatus, etcr
Observatory of Wesleyan University .
Longitude from Washington,-.
Director: Prof. J. M. Van Vleck.
Observatory of Rutgers College.
Longitude from Washington,-.
Director: -.
Observatory of Vanderbilt University .
Longitude from Washington, 38 m 56' W. Latitude
, 36° 10' 01" N.
Authority for longitude and latitude: U. S. Coast Survey.
Director: B. E. Barnard.
Instruments :
(c) Equatorial instrument: A simple equatorial; aperture of objective,5 inches; magnifying powers of eye-pieces, 52 to 520. (c 1 ) A small 2Jinches alt-azimuth telescope with good rack-work; all the eye pieces oflarge telescope fit it.
(i) Miscellaneous: In use also a small instrument. The base of thisinstrument is divided to degrees and read by vernier to 3' of arc. Anupright pillar carries a semi-circle of altitude; this is divided to degreesand read to 3' of arc by a vernier. Attached to the semi-circle of alti-tude is an hour-circle divided to 4 m of time and read to single minutesby vernier. Upon the hour-circle rests a semi-circle of declination di-vided to degrees and read to 3' ofiarc by vernier. On the base are twolevels, the instrument being leveled by three adjusting screws, whichalso serve as feet. The declination semi circle carries a very small tele-scope about .4 inch diameter of objective. The telescope has a diag-onal eye-piece with metal reflector and single lenses and vertical andhorizontal hairs. The instrument was made by W. & S. Jones, London .It is used for identifying stars in comet observations by setting thealti-tude semi circle for the latitude, thereby converting the instrument intoan equatorial.