
DISCHARGE OF ELECTRICITY THROUGH TURPENTINE. 677 
It is evident from the above table that the index before becoming steady 
fell back to the same reading always, and that the zero reading went on in- 
creasing. Though the ball in connection with the electrometer was touched, 
the image remained permanently at the place it took up when the contact of the 
conductors was made. The outside of the insulated wire was observed to be 
charged. The pressure was diminished to 625, to keep the receiver firmly in 
one position against the shaking of the Holtz machine. 
The electric strength of oil of turpentine at 625 mm. pressure was found 
about double that of air at atmospheric pressure. 
VOL. XXVIII. PART Il. 8N 
