702 REPORTS OF ASTRONOMICAL OBSERVATORIES. 



LEMBERa, Austria. 

 Observatory of the University m 



Leyden, Holland. 



Mijlis Ohservatorium. 



Longitude from Greenwicli, 17™ 50^35 E. 

 Latitude, 52° 9' 20" N. 

 Directors: J. GoLius, 1G32; 



S. C. Kechel, 1667; 



C. Melder, 1668; 



B. DE Volder, 1682; 



L. ZUMBACH DE KOESFELD, 1705j 



W. J. s'Gravesrude, 1717 ; 

 J. LuLOFS, 1742 ; 



D. VAN DE WlJNPRESSE, 1768; 

 P. NlEUWLAND, 1794; 



J. A. Fas, 1797; 



J. F. Van Beek-Calkoen, 1799 ; 



C. E. Kama, 1812 ; 

 F. Kaiser, 1837 ; 



H. G. VAN DE Lande Bakhuijzen, 1872. 

 Founded in 1632. The most ancient of existing Observatories in 

 Europe. Originally built, as a great tower for tbe town clock, 1636. 

 Enlarged in 1689. Repaired in 1817. In 1858 a new Observatory was 

 commenced, and completed in 1860. 



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Leyton, Essex., England. 

 Barclay Observatory. 



Longitude from Greenwich, 0^87 W. 



Latitude, 51° 34' 34". 



Authority for latitude and longitude, Ordnance Survey. 



Director : Charles George Talmage, F. R. A. S. 

 Instruments : 



(«) Meridian circles : makers, Houghton and Simms ; diameter of cir- 

 cles, 36 inches, divided to 5' ; read by 4 microscopes to 0". 1 ; aperture 

 of objective, 4 inches; for observations of the sun aperture employed, 4. 

 inches; magnifying power ordinarily employed, 80 diameters. 



(c) Equatorial instrument: maker, Cooke, York; aperture of objec- 

 tive, 10 inches ; magnifying power of eye-pieces, 70 to 1200. 



{g) Clock: sidereal; maker, Simmonds, London. 



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