ANNALS 
OF 
PHILOSOPHY. 
———_ ——_—_—__——-_ 
JULY, 1822, 
ARTICLE I. 
On the Fundamental State of the Magnetic Phenomena of the 
Electrical Connecting Wire, or on the Transverse Llectrical . 
Charge. By M. Prechtel, Director of the Polytechnic In- 
stitution in Vienna. (Communicated by the Author.) 
Maenetism produced by electricity is of the same nature as 
common magnetism; the apparently anomalous phenomena of 
electric magnetism may, therefore, be recognized in the pheno- 
mena of the magnetism elicited by the earth’s action, or by 
common magnetism; and these phenomena ought to include 
the explanation of the phenomena of electro-magnetism. Set- 
ting out from this principle, I have made experimental researches 
on transverse magnetization, the fundamental phenomena of which 
were previously unknown. I believe that these phenomena give 
a satisfactory explanation of the physical state of the electro- 
magnetic connecting wire, and of electro-magnetic facts in 
general, I have discovered the following facts, which I have 
detailed in several memoirs, inserted in the first, fourth, and 
sixth numbers of M. Gilbert’s Annales de Physique for the year 
1821. These facts I shall now detail in succession. 
1. When a straight iron wire has one of its ends presented to 
the magnetic pole, it is well known to be magnetized, or its two 
ends form magnetic poles of a certain degree of intensity. Ali 
circumstances being equal, this polarisation is more intense in a 
perfectly straight wire than in one which has angles and inequa- 
lities. 
2. When an iron wire, which has its ends united accurately 
by welding, is magnetized in a mode presently to be described, 
New Series, vow. tv. B 
