[ 94 * ] 
with orders ro anoint his hands with it e.very night 
going to bed. This ointment he has continued .to 
ufe about a month ; and is now perfectly refiored to 
the ufe of his hands, and begins again to work at his 
bufinefs. 
During this courfe of anointing, he took no inter- 
nal medicines, except three dofes of purging phyfic. 
LXXXV. A further Account of fame Expe?'i~ 
nients made on the Bovey Coal *. 
Read Jan. 8, ALT of hartfhorn mixed with the 
l?6u k3 phlegm that difiilled firft from the 
Bovey coal, produced no ebullition, nor air bubbles ; 
but when mixed with the watry liquor, which arole 
with the thick oil in the latter part of the procefs, 
after it had hood fome weeks in a glafs bottle, clofe 
flopt, and was become perfectly fine, caufed a very 
confiderable ebullition, and the mixture immediately 
grew foul and red. In fome days after, it grew 
much thicker, and had the colour of tar. The fur- 
face of it was covered with a bituminous pellicle, as 
were the tides and bottom of the glafs. Eighteen 
grains of fait of hartfhorn were not more than Ef- 
ficient to faturate the acid falts contained in an ounce 
.of the liquor, which was but very little four to the 
tafte. 
Spirit of nitre dropped into this bituminous liquor, 
foon after it was diftilled, and before it had deposited 
the oily particles (which rendered it cloudy), changed 
* See before, p. 534. 
6 E 1 
its 
