REPORTS OF ASTRONOMICAL OBSERVATORIES. 733 



P. Slavinski, 1824; 

 M. KxousciiNEViTcn, 1841; 

 G. A. VON Fuss, 1848; 

 G. S ABLER, 1854; 

 Colonel Peter Mysloff, 18G7. 

 Assistant ; Fried. Wilhelm Berg. 



It seems that this Observatory had already existed for some time, 

 when in 17C4 Poczobut restored it aud replaced its instruments. Its 

 labors, suspended during the Eevolution, were not resumed until 1802. 



Instruments: 

 ■(b) 3Ieridian transit instrument : maker, Eamsden, in 1777; aperture, 



4 inches; magnifying power, 40 diameters. 



(c) Uqnatorial instrument: maker, EAMSDEN, in 1777; aperture of ob- 

 jective, 4 inches; magnifying powers of eye-pieces, 40 and OO. 



(d) Spectroscope: direct vision, maker, S. Merz, at Munich. 



te) Photometer: made by the late Prof. L. Schwerd, at Speyer. Of 

 the three made by him one is in Bonn, and the other m Pulkowa. 



(f) C/trowo^mw/i: maker, Ansfeld, at Gotha. 



\g) Gloclcs: one, mean time, maker, Shelton, (London); one sidereal, 

 maker. Hardy, (London, 1819). 



ill) Chronometer: one, mean time, maker, Dent, ^o. -.Jb, one, 

 sidereal, maker, Dent, No. 2000. 



(i) A Heliostat, by S. Merz. Various ancient astrono n.cul in.tiii- 

 ments, and modern meteorological instruments. The library of the 

 Observatory contains 1,966 works, in 4,181 volumes. 

 Observations: 



From 1869 to 1876, photoheliographical ^'^^^^^^/^^^^J^Z 

 manner as at Kew, near London. In the year ^^^t^^l 

 DALLMEY^R, London, was clestroyed by lire ^^ .^^ ^^ t d P- 49^ 

 tions are made four times a day : at 7^^ A. m., l i . m., j i • , 

 p. m. (=7^ mean Washington time, A. 3i). 



Warsaw, B2issia. 

 See Varshava. 



Wellington, New Zealand. 

 Government Observatory. 



Longitude from Greenwich. 



Latitude, '^ 



Director : ^ 



