ASTRONOMICAL OBSERVATORIES. 445 



The organization of the observatory dates from May, 1878. Accord- 

 ing to its statute the observatory is chietly destined to the progress of 

 sidereal astronomy. 



If. Ohscyvatorio da Marinha. 



Longitude from Greenwich, oG'" 33. 5** W, 

 Latitude, 38° 42' 11. iV N. 

 Directors ; M. E. S. Limpe. 



A. CONTO Valente. 



J. CORDEIKO FeUO. 

 F. FOLQITE. 



F, DE Paula Ferreira de Mesqitita, 1874. 

 Established in 1798. Eenewed in 1859 and 1874. 



III. Obscrvatorio Aslronomico na Escola Polytecmca. 



Longitude, . 



Latitude, . 



Director: . 



For the instruction of students 0UI3'. 



Liverpool, England. 



Observatory. 



Longitude from Greenwich, 12™ 17.2" W. 

 Latitude, 53° 24' 3.8" N. 

 Director: J. Hartnup, 1845. 



Founded in 1838 by the municipal council; completed in 1848. Trans- 

 ferred to Birkenhead, on the opposite bank of the Mersey, in 1867. 

 It is provided with an a])paratus for the examination of chronometers 

 where the temperature can be raised by means of a gas heater. The 

 equatorial is moved by clock-work, set in motion by hydraulic power. 

 The time-signal is given to the shipping by the firing of a cannon. 



London, England. 



Tulse Mill Observatory {Upper Tulse Rill, London, S. W.). 



Longitude from Greenwich, 27. 7^ W. 

 Latitude, 31° 20' 47" N. 

 Director : William Huggins. 



Founded in 185G. 

 Instruments: 



An equatorial instrument by Grubb, of Dublin, so constructed that 

 either a refractor, of 15 inches aperture and 15 feet focal length, or a 

 Cassegrain reflector with metallic speculum of 18 inches aperture may 

 be placed at pleasure on the same equatorial mounting, so that with 



