[ 8*7 ] 
each, and that beftde this quick Difcharge of the 
Drops, the upper Hemifphere of your Receiver appear 
always filled with a white Mift or Fumes : Continue 
this Heat as long as they emit the Scent of true Mar- 
joram *. 
As foon as the Smell changes to an Acid, fuffo- 
cating one like that of Brimftone, take out 1 the Fire, 
and lift the Retort out of the Sand, and change the 
Receiver j for all that arifes afterwards is only a mere 
Gas of Brimftone, and of no Ufe -f*. 
If you do not ufe the greateft Precaution, the Li- 
quors in the Retort will run over ; the Fire muft 
ceafe, as foon as the aethereal Spirits are gone overj 
for there remains behind an Oleum Vim, which is 
extracted by the Force of the Acid out of the 
Spirits, which will arife, run over, and often caufe 
Explosions ||. 
The 
with it j which will mod certainly happen, if a middle Degree of Heat 
be kept up, between a reverberatory Heat and the other Degrees of 
Fire. For the Spirit of Wine being mixt with the vitriolic Acid in 
equal Weight, but by unequal Meafure ; the Spirit taking up double the 
Room of the Oil, does in a wonderful manner make up the Deficiency 
of the higheft Degree of Heat. 
* Towards the End, the Scent will more referable that of Arrack ; 
continue this Heat for about Three Hours, till the Scent becomes 
ofFenfive, and like that of Gas Sulphuric . 
f At this time you will fee black Froth arifing, which will cer- 
tainly burfi your GlafTes, and deftroy your Work, if continued. 
|| The Retort with its Receiver being removed, fet them by in a 
cold Place \ and when all are thoroughly cold, feparate the Receiver 
from the Retort: There will be Two different Liquors in the Re- 
ceiver, which pour off through a glafs Funnel into a glafs Bottle, which 
flop up very carefully. 
The Liquor will be of Two Sorts ; that which fwims at Top, inflam- 
mable, of the Nature t# fcxov/fS' j that which finks to the Bottom, 
5 U like 
