[ 38 ] 
VI. Ext raft of a Letter from Mr. Ebe- 
nezer Kinneriley to Benjamin Franklin, 
LL. D. F. R. S. on fome eleElrical Ex- 
periments made with Charcoal . 
Received Augult 1 6, 1772. 
Philadelphia, October 13, 1770. 
Read Dec. 10, RTlHE conducting quality of fomc 
I7/ " forts °i r charcoal is indeed very 
remarkable, i have found oak, beech, and maple, 
to conduCt very well ; but tried feveral pieces of pine 
coal, without finding one that would conduCt at all ; 
perhaps they were made in a fire not hot enough, 
-or not continued in it long enough. A ftrong line 
drawn on paper with a black lead pencil, will conduCt 
an eleCtrical fhock pretty readily 5 but this, perhaps, 
may not be new to you. 
On the 1 2th of laft July, three houfes in this city, 
and a (loop at one of the wharfs, were, in lefs than 
an hour’s time, all (truck with lightning. The (loop, 
with two of the houfes, were confiderably damaged ; 
the other was the dwelling-houfe of Mr. Jofeph 
Moulde, in Lombard-flreet, which was provided 
with 
