magnetic phenomena produced by electricity. 19 
tube containing a bar of steel, and I found that the bar was rendered powerfully mag- 
netic by the process. 
Without meaning to offer any decided opinion on that Gentleman’s ingenious 
views, I shall beg permission to mention two circumstances, which seem to me unfa- 
vourable tb the idea of the identity of electricity and magnetism; ist. the great 
distance to which magnetism is communicated by common electricity (I found that 
a steel bar was made magnetic at 14 inches distance from a wire transmitting an 
electric, shock from about 70 feet of charged surface); and, 2d. that the effect of 
magnetizing at a distance by electricity takes place with the same readiness through 
air and water, glass, mica, or metals; i.e. through conductors and non-conductors. 
