Electrification of Air by Water-Jet. 



151 



ing as usual till the water-dropper comes to equilibrium, the 

 initial reading is always about J volt positive. This we are 

 inclined to regard as due to the electrification of water itself 

 and not to the potential due to the internal arrangement. 

 This initial reading also increases little by little as the air 

 becomes more purified. 



Fig. 2. 







Hfi -'- jgjgffi siag XiUfl BS 







I 







^2^** < 1 ID 



hES HI 













In the course of these experiments we have observed the 

 following phenomena, which may be of some interest : — 



(1) If the air of the room is Yery highly electrified, con- 

 tinuous sparks can be drawn from any insulated conductors 

 by presenting finger. 



(2) Electrified flame is attracted or repulsed as any other 

 electrified body. Flame electrified by the large electrical 

 machine before mentioned takes different shapes according to 

 the position with respect to other conducting bodies either 



