DIAGRAM 2. 
Pro c . Roy So c. Rim ' 
© 
+ X 
(X 
$ 
s; n c 
4 
$ ^ 
& I 
s ? 
& V v 
i $ 4 
$ 
>> 
r 
$ 
$ 
Co 
3 
2c 
^0 
ft 
in Centimetres (Height of Flame constant — 5’5 cm.). 
ly electrified. • Luminous flame, disc being positively electrified, 
ely „ © ,, „ „ negatively 
DIAGRAM 1. 
