AMERICAN 
JOURNAL OF SCIENCE AND ARTS. 
[SECOND SERIES.] 
Arr. 1—On Terrestrial Magnetism; by Wrt1am A. Norton, 
oe of Mathematics and Natural Philosophy in Delaware 
ollege. 
eral philosophers ; and particularly by Captain Duperrey, and M. 
Kupffer of Kasan. The origir moirs 
Years 1822-1825, perrey 7 
Magnetic observations in the vicinity of the equator, by which 
Stconp Series, Vol. IV, No. 10.—July, 1847. 1 
