Account of a Thunder form in Scotland. 
by a cannon ball, in its paflage through that atmofpherical 
fluid, though the cannon ball itfelf had evidently neither 
flruck the perfon wounded, nor even grazed his cloaths. 
The “ d ufh that role at the place” might he brought as an 
additional argument in favour of the opinion, that a fudden 
•and violent commotion of the air did occalion the efFetts- pro* 
- duced. 
But fuch an explanation (vague as it is) would' not account 
for the “ marks of fufion” on the iron of the wheels ; nor 
for “ the hair of the horfes having been finged nor for 
“ the Ikin of Lauder’s body having been burnt” in many 
places. 
§ 8. I think, from the different circum fiances of this cafe, 
that it is clear to demonilration, that the effects produced pro- 
ceeded from electricity ; and that no eleftrical fire did pafs im- 
mediately either from the clouds into the cart, &c. or from 
the cart, &c. into the clouds. 
From “ the circular holes” in* the ground (“ of about 
“ twenty inches in diameter”) the refpettive “ centers of 
“ which were exattly in the track of each wheel,” and the 
correfponding 4t marks of fufion” on. the iron of the wheels, 
which marks “ anfvvered exattlv to the center of each of the 
^ * 
“ holes;” it is evident, that the elettrical fire did pafs (from 
the earth to the cart, or from the cart to the earth) through 
that part of the iron of the wheels which w r as in contact with 
the ground. 
From the 46 fplinters that had been thrown off, in many 
“ places, particularly w r here the timber of the cart was con- 
“ netted by nails or cramps of iron,” and from the various 
other effetts mentioned in Mr. Brydone’s Paper, it is moreover 
evident, that there was a violent motion of the elettrical fluid in 
ally 
