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broken ; it lias been replaced by Alvan Clark & Sons. Its perform-ance, which was always good, appeal’s to be rather better than beforethe accident.
Observatory of Washington University .
Longitude from Washington, 52 m 37.02 s W.
Latitude, 38° 38' 3.61" W.
Authority for longitude and latitude : A pier about 150 feet away fromthe observatory pier was located by Eirnbeck in 1870. Thelongitude has again been determined by a Coast Survey party.Directors: J. K. Rees, 1877.
H. S. Pritchett, 1881.
Instruments :
(h) Meridian transit instrument: Maker, Wurdemann ; aperture, 2.65inches; magnifying power, 90 diameters, with micrometer attachment.
(c) Equatorial instrument: Maker, II. Fitz, of New York City ; aper-ture of objective, Oj inches; magnifying powers of eye-pieces, 76, 125,190, 305, and 456 diameters, (o') Finder: 2 r f ff inches aperture; mag-nifying power, 23 diameters.
(<I) Spectroscope: One single prism Browning- spectroscope.
(e) Photometer and other subsidiary apparatus: Filar position, microme-ter attached; clock-work for moving telescope.
( g ) Clock: Meantime; common tower clock.
(h) Chronometer: Mean time; makers, (1) Dent No. 2749, (2) BlackieN o. 789.
(i) Miscellaneous: Sextant, by Blunt, of New York City .
South Bethlehem, Pennsylvania .
Sayre Observatory of Lehigh University .
Longitude from Washington, 6 m 40.19 s E.
Latitude, 40° 36' 23.89" N.
Director: C. L. Doolittle.
Founded in 1877, in connection with Lehigh University .Instruments :
(c) Equatorial instrument: Makers, Clark & Sons; aperture of ob-jective, 6 inches; magnifying powers of eye-pieces, 12 to 225.
(g) Clock: Sideral ; makers, Bond & Son.
(i) Miscellaneous: A portable transit instrument by Stackpole, uzenith telescope by Blunt, and a prismatic sextant by Pistor & Mar-tin.