ASTRONOMICAL OBSERVATORIES. 385
(h) Chronometer: Sidereal; makers, T. S. & J- T). Negus, New York (good).
(i) Miscellaneous: Sextant , by Gambey ; comet-seeker, G-incli objectglass.
Private Observatory.
Director : It. II. McClure.
Situated about one mile E. by S. from Cincinnati observatory.Instruments :
(c) One equatorial silvered glass Newtonian reflector. Diameter ofthe concave reflecting objective, 5} inches; magnifying powers of theeye-pi< ces, GO, 100, and 200 diameters. The mirror, tube, and mountingall constructed by Mr. McClure himself.
Longitude from Washington , 49 m 25.8* W.
Latitude, 43’° 4' 3G.7" N.
Authority for longitude and latitude: a pier of the United StatesCoast and Geodetic Survey, about 500 feet from the observa-tory, has been connected by a triangulation with the transitroom, and the position given refers to the center of the transitcircle.
Directors: Edward S. Holden , 1880.
Instruments :
(a) A meridian circle: Maker, Bepsold & Brother, Hamburg;diameter of circles, about 30 inches; divided to 2'; read by 4 microscopesto 1". Aperture of objective, 4.8 inches; for observations of the sun,aperture employed, —inches; magnifying power ordinarily employed,— diameters.
(b) Meridian transit instrument: Makers, Fautii & Co., Washington ;aperture, 3 inches; magnifying power, GO and 120 diameters; two 12-inch circles divided on the edges: one circle to 10", the other for set-ting only. The fine circle has a level for latitude.
(c) Equatorial instrument: Makers, Alvan Clark & Sons ; aper-ture of objective, 15.5 inches; magnifying powers of eye-pieces, 145to 1200.
(/) Chronograph: A chronograph by FAUTII & Co,, with a conicalpendulum.
H. Mis. 17Q——25