C ] 
Memorandum. 
Odlober 3, 1771, I tried the electricity of a thick 
fog, and (in at lead: twenty different trials) found 
the balls feparated from J to | inch diftance. 
Whenever I brought them near the building, 
or approached them with a flick of excited wax, 
they clofed ; and opened again, on removing 
them. 
W. Henly. 
c 3?Ti 02 
XIX. Ob- 
