g]g[ METHOD OF INCREASING AN ELECTRICAL CHARGF, 



standing at the distance of 2|-, and the wire wus fused into 

 balls. 



Exp. 17. Exp. 17. The paper rings were now taken off, and the 



tmcoated part made clean and dry. Nineteen turns produced 

 a discharge to the electrometer ball at the sartie distance, 

 and the same length of wire was slightly blued. 



Exp. 18. Exp. 18. The jar was then breathed into, and a discharge 



was produced at the same distance, but the wire was not 

 fused, 



Exp. 19. Exp. 19. The same jar was breathed into a second time; 



a discharge was caused at the same distance, and the wire 

 was fused into balls exactly the same as when the paper rings 

 were on. 



Exp. SO. Exp. 20. A third jar was taken, 7 inches high and 4 



inches diameter, having about 64 square inches coating. 

 When rubbed clean and dry, and applied to the machine, 

 two turns of the plate caused a voluntary discharge to the 

 outside coating. 



f-xp.21, Exp. 21, A paper ring was pasted on both sides, close 



lo the coating, and one inch from the top. When applied 

 tathe machine, no voluntary explosion could be obtained, 

 but the electric fluid was seen to run over the brim of the 

 glass to the coating as quickly as the machine could give it. 

 The exploding distance to the electrometer was seven eighths 

 of an inch. 



Exp. 22. Exp. 22. The paper rings were taken off, and other's 



pasted on, to within one inch and a half from the top. No 

 voluntary explosion to the coating could be obtained ; but 

 it exploded to the electrometer standing at one inch dis- 

 tance, and did not produce any effect on one inch of wir'6, 

 which was hiing to the electiomeler. 

 tp. 20. Exp. 23. Then paper rings of different breadths Wefe 



tried, and it was found, that, when they were only half an 

 inch higher than the coating, the jar received the greatest 

 power, and its exploding distance to the electrometer was 

 one inch and three eighths, which fused and dispersed in 

 balls one inch of wire, of the same diameter as that used in 

 Exp. 6, with the first jar, 



Exp. 24. Exp. 24. The paper ring was scraped from off both sides, 



and the jnr wa? carefully breathed into. Then six turns .of 



tb*; 



