MAGNETIC OBSERVATIONS. It 



1843-1844. Magnetic observations in Sir Thomas Bris- 

 bane's observatory at Makerston, Koxburghshire, 55° 34^ 

 N. lat. (see Transact, of the Royal Society of Edinb., vol. xvii., 

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



1843-1849. Kreil, On the Ivfaence of the Alps upon the 

 Manifestations of the Magnetic Force (see Solium., Astr. 

 Nachr., No. 602). 



1844-1845. Expedition of the Pagoda into high antarc- 

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

 long., 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 labors of Sir James Ross at the 

 South Pole. 



1845. Proceedings of the Magn. and Meteorol. Conference 

 held at Cambridge. 



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

 atoi^ at Bombay, under the superintendence of Arthur Bed- 

 ford Orlebar. This observatory was erected in 1841, on the 

 little island of Colaba. 



1845-1850. Six volumes of the Pesidts 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, Pecherches 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 isl- 

 ands, compared with Madras, between 16° N. lat. and 12° 

 S. lat., and 78° and 123° E. long. {Pkil. Transact, for 1851, 

 pt. i., p. 287-331, and also p. i.-clvii.). Charts of equal in- 

 clination and declination, which also expressed the horizon- 

 tal and total force, were appended to these observations, 

 which also give the position of the magnetic equator and of 

 the line of no variation, and belong to the most distinguish- 

 ed and comprehensive that had been drawn up in modern 

 times. 



1845-1850. Faraday's brilliant physical discoveries: (1) 

 In relation to the axial or equatorial (diamagnetic*) direc- 



* See Cosmos, vol. iv., p. 84. Diamagnetic repulsion and an equa- 

 torial, that is to say, an east and -west position in respect to a power- 



