Mr Innes on the Solar Eclipse, $c. 71 



Now, in 1605, the South American pole s was 76|° west of 

 Greenwich, nearly south of Terra del Fuego, and the New 

 Holland pole S was about 150° east of Greenwich ; the pole s 

 was, consequently, much nearer the Cape than it is now, while 

 the other pole S was more remote from it. The effect of s, 

 therefore, was greater, and of S less than at present, so jthat the 

 south pole of the needle moved more towards the west, and its 

 north pole more towards the east. But as s went farther off, 

 and S approached the Cape, the south pole of the needle turn- 

 ed more and more towards S, so that the declination became 

 westerly. 



To obtain an example from the dip, Professor Hansteen 

 gives the following observations at Paris: 



- 



Though the dip thus diminished at Paris, yet it increased 

 in Eastern Siberia and Kamtschatka. Both these changes are 

 the results of the motion of the Siberian pole n towards the 

 east, in which it is removed from Europe, and approaches to 

 Kamtschatka. In all South America the dip decreases in 

 consequence of the motion of the Terra del Fuego pole s to- 

 wards the west. 



Art. XIII. — On the Solar Eclipse which will happen on the 

 9,9th of November 1826 ; being the principal results of a cal- 

 culation for Edinburgh. By Mr George Innes, Aber- 

 deen. 



Sir, 

 I send you for insertion in the Journal of Science, the results 

 of a calculation for Edinburgh of tlie solar eclipse which will 



