O ] 
Phial exploded very quick, becaufe the iron Wire 
conduced the Electricity better than the Body of 
the Obferver. 
It was then tried, whether or no, as the Ground 
was wet, if the Explofion was made with the Ob- 
ferver holding the Extremity of each Wire (landing 
upon the Ground near the Window of the Houfe, 
any Difference would arife in the Succcfs of the Ex- 
periment ? No Difference was found, the Obferver 
being (hocked in the Indant of the Explofion as be- 
fore in both his Arms, and acrofs his Bread. 
Upon thefe Confiderations we were fully fatisfied, 
that through the whole Length of this Wire, being 
as I mentioned before, twelve thoufand two hun- 
dred and feventy-fix Feet, the Velocity of Electricity 
was indantaneous. 
As it was found lad Year, we obferved again, that 
although the electrical Commotions were very fevere 
to thofe who held the Wires, the Report of the Ex- 
plofton at the prime Conductor was little, in com- 
parifon of that which is heard when the Circuit is 
fhort. From whence it was conjectured, that the 
very loud Report, in the Experiment of Leyden is 
confined to a very (hort Circuit. 
M 2 
