MAGNETIC OBSERA'ATIONS. 77 



declination in the woody district of Guiana, between the 

 mountain Roraima and the village Pirara between the paral- 

 lels of 4 57', and 3 39' (Phil. Transact, for 1849, pt. ii, 

 p. 217). 



1841 1845. Magn. and Meteor ol. Observations made at 

 Madras. 



1843 1844. Magnetic observations in Sir Thomas Bris- 

 bane's observatory at Makerstoun, Roxburghshire, 55 84* 

 North lat. (see Transact, of the Royal Society of Edin- 

 vol. xvii, pt. ii, p. 188, and vol. xviii, p. 46). 



1843 1849. Kreil, On the influence of the Alps upon the 

 manifestations of the Magnetic Force (see Schum. Astr. 

 Nachr. No. 602). 



18441845. Expedition of the Pagoda into high ant- 

 arctic latitudes as far as 64 and 67, and from 4 to 117 E. 

 lon^., embracing all the three elements of terrestrial mag- 

 netism, under the command of Lieutenant Moore, who had 

 already served in the Terror in the polar expedition, and of 

 Lieutenant Clerk, of the Royal Artillery, and formerly 

 Director of the Magnetic Observatory at the Cape. A 

 worthy completion of the labours of Sir James Ross at tho 

 South Pole. 



1845. Proceedings of the Magn. and Meteorol. Conference 

 held at Cambridge. 



1845. Observations made at the Magn. and Meteorol. Ob- 

 servatory at Bombay under the superintendence of Arthur 

 Bedford Orlebar. This observatory was erected in 1841, 

 on the little island of Colaba. 



1845 1850. Six volumes of the results of the Magn. and 

 Meteorol. Observations made at the Royal Observatory at 

 Greenwich. The magnetic house was erected in 1838. 



1845. Simonoff. Professor at Kazan, Recherches sur V action 

 magnetique de la Terre. 



1846 1849. Captain Elliot, Madras Engineers, Magnetic 

 Survey of the Eastern Archipelago. Sixteen stations, at each 

 of which observations were continued for several months in 

 Borneo, Celebes, Sumatra, the Nicobars, and Keeling Islands, 

 compared with Madras, between 16 N. lat. and 12 S. lat. 

 and 78 and 123 E. long. (Phil. Transact, for 1851, pt. i, 

 pp. 287 331, and also pp. i clvii.) Charts of equal incli- 

 nation and declination, which also expressed the horizontal 



