ASTRONOMICAL OBSERVATORIES.
481
WlLLIAMSTOWN, VICTORIA.
Observatory,
Longitude from Greenwich , 9 h 39 m 38.8* E.
Latitude, 37° 52' 7.2" S.
Removed to Melbourne, Victoria , in 1801.
Kaiserliches Marine Observatorium,
Longitude from Greenwich , 32 m 35.21“ E.
Latitude, 53° 31' 52.2" N.
Authority for longitude: Astronomische Arbeiten des Kgl. preuss.Geodatischen Instituts fur 1878; for latitude: Director’s ob-servations of zenith-stars with meridian circle.
Director: 0. Borgen, Dr. Phil., 1876.
Founded in 1875; completed in 1878.
Instruments:
(a) Meridian circle : One; makers, A. Repsold Sohne, in Hamburg;diameter of circles, 21.6 inches, divided to 2'; read by 4 microscopes,each to 0.1"; aperture of objective, 4i inches; magnifying power ordi-narily employed, 125 diameters.
( b ) Meridian transit instruments : One portable, by C. Bamberg, Ber-lin ; aperture, 1J inches.
(c) Equatorial instruments: One, by Steinheil Sohne, in Munich ;aperture of objective, 4 inches; magnifying powers of eye-pieces, 48 to360; ring-micrometer, (c') One, Steinheil Sohne; 2\ inches aper-ture; magnifying power, 24 to 150.
(/) Chronograph : One, by Fuess, Berlin.
(g) Clocks : Mean time; one, by Eppner, Berlin ; sidereal; one, by F.Tiede, Berlin (staudard clock).
(i) Miscellaneous: A complete set of Lamont’s instruments for ob-serving the variations of the magnetical declination, horizontal force,and inclination.
Lamont’s magnetical theodolite; dip-circle by Dover; self-register-ing barometer and anemometer (Robinson); meteorological instru-ments; self-registering tide-gauge; time-ball. Since September, 1880,a self-registering tide-gauge, devised by Mr. Reitz, of Hamburg, hasbeen erected in Heligoland and placed under the control of this observ-atory.
Windsor, New South Wales, Australia .
Observatory of John Tebbut.
Longitude from Greenwich , 10 h 3 m 21.8“ E.
Latitude, 33° 36' 28.8" S.
Director : John Tebbut.
H. Mis. 170-31