LffeB of Lightning on a Bullock . 503 
“ probably the fame, or at leaf! modifications of the fame 
“ principle; therefore, red bodies are perhaps replete 
with electric matter, while white bodies may be defii- 
tute of it (b). A body faturated with it cannot receive 
more, and may efcape, while a neighbouring body, not 
“ calculated to receive it, may, on its admiffion, be de- 
“ Proved ro. Or there may exift a chemical affinity be- 
“ tween eledricity and the different rays of light, which, 
<( in attracting fome, and repelling others, may be the 
“ foundation of many curious phenomena. But, while 
u we admire the effects; the habitudes and modus ope - 
u randi of thefe fubtile fluids may, perhaps, for ever 
“ elude the cognizance of our fenfes.” 
( b ) Many fubftances rauft certainly be excepted from this rule, w. henly. 
(c) This efTea of lightning generally happens to fuch bodies which, in fome 
meafure, refill its entrance, &c. merely on account of their being imperfect 
condudlors. w. henly. 
