ASTRONOMICAL OBSERVATORIKS. 433 



lites, one by llEicnENBAcn, two by jVIeyerstein; sextants by Cary, 

 Teougiiton, Pistor, Steiniieil, and Breithaupt ; two heliotropes 

 by Meyerstein. 



Graz, Austria. 



I. rhysikalisches InstlUit der K. K. Carl Franzens Universitcit. 



Longitude from Green wicb, -. 



Latitude, . 



Director: Prof. l)r. LuDwiG Boltzjiann. 



II, Univcrsitliis Stermvartc. 



Longitude from Greeuwicb, 1'' 1"' 47.9" E. 



Latitude, 47° 4' 37.2" N. 



Authority for longitude and latitude : A. Lancaster, Liste Geu6rale 



des Observatoires et Astrouomes, IS87. 

 Director : Dr. C. Friesach. 



III. rrivatc Stcrnwarte. 



Longitude from Greenwich, — — — . 



Latitude, . 



Director : E. Matiiey Guenet. 



Greenwich, England. 



Royal Observatory. ^ 



Longitude from Washington, 5^ 8"» 12.09'' E. 



Latitude, 51° 2S' 38.4" N. 



Authority for longitude and latitude : Nautical Almanac, Greenwich 



Observations, 1878. 

 Directors: J. Flamsteed, 1075^ 



E. nALLEY, 1720. 



J. Bradley, 1742. 



N. Bliss, 1762. 



N. Maskelyne, 1765. 



J. Pond, 1811. 



G. B. Airy (Astronomer Royal), 1835. 



W. H. M. Christie (Astronomer lloyal), 1881. 



Founded by royal statute on the 4th March, 1675. Built in the park 

 at Greenwich by CnRiSTOPHER Wren, architect. At first it consisted 

 merely of an octagonal tower. In 1660 Fl amsteed put up an additional 

 wing to accommodate the mural sector, with the help of which he made 

 his catalogue of stars. The board of visitors was created in 1710. In 

 1749 and the years immediately following great imi)rovements and 

 additions were made. 



H. Mis. 170 -28 



