[ 210 ] 
the circuit, occafioning a difficulty in the admiffion 
of the charge on the outfide of the jar. And, in 
all cafes, the greater this difficulty of paffage was 
made, provided the aifcharge was made at once, the 
more confiderable was the lateral explolion, and the 
greater Ihock was given to the hand that held the 
difcharging rod ; which fhock was nothing more 
than one of thefe lateral explofions, iffiuing from the 
rod as part of the circuit. 
I fhall conclude the account of thefe experiments 
with obferving, that they may poffibly be of fome 
ufe in meafuring the conducting power of different 
fubftances ; fmce, the greater is the interruption in 
the eleCtric circuit, occafioned by the badnefs of its 
conducing power, the more confiderable, cceteris 
Qaribus , is the lateral explolion. 
XIX- Expert- 
