195 
of coated Electrical Jars . 
Experiment V.— A piece of iron wire, one hundredth 
part of an inch in diameter and one inch in length, was 
hung to the electrometer, through which a second dis- 
charge was made to pass, and the wire was blued. 
Experiment VI. — The paper ring was then taken off 
and breathed into twice ; the discharge was then produced 
at the distance of two inches, and the wire was fused into 
balls. 
Experiment VII.— The jar was then rubbed clean 
and dry, and a piece of the same sort of wire and the 
same length was hung to the electrometer in the same 
manner as before, and it appeared that the greatest charge 
it could take had not the least effect upon the wire : thus 
it appears that a paper ring so applied does not increase 
the charging capacity of jars in the same degree as breath- 
mg. 
Experiment VIII.—' The jar was highly charged, and 
examined in the dark : the paper ring appeared luminous 
all round the uppermost edge. 
Experiment IX.— The ring was taken off, and pasted 
on in the inside close to the coating : twenty-three turns 
caused a voluntary explosion through the ring to the out 
side coating. 
Experiment X.— A second ring three quarters of an 
inch broad was pasted on close to the other: the same 
number of turns produced a voluntary explosion, and the 
paper was torn by the discharge, which was repaired 
and left to dry. 
Experiment XI.— When dry, no voluntary explosion 
could be obtained. 
Experiment XII.- — Its greatest power was then tried, 
and was found to be exactly the same as in Experiment 
VI, (when it was breathed into) : it discharged at two 
inches distance, and the same length of wire was fused 
into balls. 
