[ 7i 1 
and touched the Ground with his iron Rod in a dry- 
gravelly Field at leaft 300 Yards from the Water? 
As from the Situation of the Ground, Trees, &c. 
neither of the Stations could be feen by each other, 
or by the Obferver at the electrifying Machine, it 
was agreed to difcharge a Gun as a Signal to get 
ready, and to do the fame, as near as might be, half 
a Minute before each Explofion. 
In thefe Experiments, as well as the former, the 
coated Phial was each time charged as high as it 
could be ; fo that if the Difference of the Shock to 
the Obfervers was conftderable, it was owing to 
other Caufes more than to the Phial’s being dif- 
ferently electrified. 
To try the firft Propofition, eight Explofions were 
made with the Obfervers at E> and E , touching the 
Water, and ftanding upon Wax, with their iron Rods 
in the Water. The firft two of thefe were felt but 
weakly by the Obferver at ‘D ; but in the other fix 
he was ftrongly fhocked. The Obferver at E felt 
nothing of the firft fix Explofions 5 when, upon Ex- 
amination, the Wire was found broken by fome 
Accident ; but this Obferver was ftrongly fhocked by 
the two laft. The Obferver at T> being fhocked in 
four of thefe Explofions, while in thefe four the 
Obferver at E felt nothing, was owing to the Cir- 
cuits being formed by the Ground between the Ob- 
ferver at E) and the broken Wire. Upon account 
of the Wire’s being broken, the Gentlemen tried 
three more Explofions, when the Obfervers at both 
Stations felt the ele&rical Shock, 
To try the fecond Propofition, four Explofions 
were made with the Obferver at ftanding upon 
an 
