AMERICAN JOURNAL OF SCIENCE. 
[THIRD SERIES.] 
—_———— @ § ¢ —__—. 
Art. XXII. — On the New Action of Magnetism on a Perma- 
nent Electric Current ;* by E. H. HAut, Assistant in Physics 
at the Johns Hopkins University. 
In the early part of last winter there was published in the 
American Journal of Mathematicst an account of some exper- 
iments which prove that an electric current, as distinguished 
* In its original form this article was a thesis for the degree of Doctor of Phi- 
losophy. Some alterations have been made in preparing it for publication. 
t Vol. IT, page 287, 1879; republished in this Journal, March, 1880. 
Am. Jour, — ms VoL. XX, No, 117.—Sepr., 1880. 
