as SS 
Associated cases of Current and Static Effects. 89 
then returning out of the wire at the same place, no sensible part 
of it ever travelling on to b orc. 
When an air wire of equal extent is experimented with in like 
manner, no such effects as these are perceived; or if, guided by 
principle, the arrangements are such as to be searching, they are 
perceived only in a very slight degree, and disappear in compari- 
son with the former gross results. The effect at the end of the 
very long air wire (or ¢) is in the smallest degree behind the ef- 
fect at galvanometer a; and the accumulation of a charge in the 
Wire is not sensible. 
ea 
other (Exp. Res. 1320, 1326,* 1338, 1561, &c.). If we puta 
plate of shell-lac upon a gold-leaf electrometer and a charged 
wY Leyden jar being charged sufficiently, its outside connected 
with € and its inside with m, will give a charge to the wire, which 
fet 1326, All these considerations impress my mind strongly with the conviction, 
insulation and ordinar i rly se 
Phenomena are produced. They appear to me to consist in an action of contiguous 
n in electrical excitement: 
. Every body 
i i ity L ; ? ; in ' 
makes ther, thee this capability in a greater or smaller for se rth ini 
_ in their principle and action (1320), ex- 
to be the same in princip on (1 
vie the latter an effect scan to both is raised to the highest degree, 
‘as in the former it occurs in the best cases, in only an slmost insensible 
Stcosp Sznies, Vol, XVIIL, No. 52—July, 1854. 12 
