842 Mr. nairne’s Experiments to Jhew the 
attracted down towards the ball, till it came within its 
Striking distance, where it discharged its electric fire all 
at once on the bail with a loud and Strong Spark. 
And again, in the Sixteenth experiment, where the 
Stand with the point is replaced at the other end, whilft 
the cloud is attracted down to the ball, it infcantly pre- 
vents its Striking to the ball by carrying oil the electric 
fire as fait as the moveable artificial cloud receives it 
from the artificial one. 
And from the Seventeenth experiment we learn, that 
when the Stand with the point is placed clofe to the Stand 
with the ball, whilst the moveable artificial cloud is 
Striking to it, the cloud even in this cafe initantly ceafes 
to Strike to the ball, returning from it and foon fettling 
nearly in an horizontal position.. 
EXPERIMENT XVIII. 
I took off the cylinders ee from the ends of the move- 
able artificial cloud (the height of my room not allowing 
them to be fufpended in the following experiments) ; I 
then placed it, together with the glafs pillar whereby it 
was infulated, upon another foot of fuch . a height that 
when the ball at one of the ends was three inches above 
the ball c at the end of the artificial cloud, then the 
moveable 
