( ) 
Power of Mixture reprefented, and I hope in time Come 
Mechanical ufe made of it, at leaft its heartily wiflicd 
fo. 
Since this Paper was almoft finiflied, having difcour- 
(ed with Mr. Molt^ a moft Ingenious Chymift, and de- 
fervedly a Fellow of the Royal Society ( to whom I muft 
acknowledge an Obligation for the liberal ufe he allowed 
me of bis great and Excellent CoUeftion of Eflential 
Oyls) about his Obftrvations in thofe Tryals he has 
made, and particularly about Oyl of Turpentine, whe- 
ther he did ever make Oyl of Turpentine take fire , 
which he does affirm that he has performed it ; but 
yet it proves fo hard a matter to bring it to an Accen- 
fion, that he is always doubtful of the Cucccfs, 
I know that if a Candle be brought any thing near 
the fmoak, raifed by this Mixture, then the 0}1 will 
certainly take fire from the flame of the Candle. Not 
but that I am glad of this or any Opportunity to do 
Juftice to the Memory of the Famous Borichiusj who 
has Printed an Experiment of this fort in the Aila Haf- 
nknfia, 
Mr. Molt did alfo inform me, that Spirit of Wine 
would give a flafli of Light with this Compound Spirit, 
but not burn and he has obfervcd the fame Circum- 
ftance in his Experiment ( which I did formerly in the 
SeeTranf. Year 1683.) That if you put your Spirit of Wine to 
pa^/i^j. the Nitre, you will have a great Effervefcence immedi- 
ately enfue ; but if you invert the order, and put the 
Spirit of Nitre on the Spirit of Wine, you will not have 
any Ebullition for fome time : But this Circumftance is 
quite contrary to all the other Experiments we have 
made about the Oyls. 
That the Spirit of Wine does not take fire, feems to 
proceed from the fame Impediment which hinders light 
Oy ls from coming up to an Accenfion, becaufe they are 
fo (uddenly thrown off; and there feems to be a great 
AnaJcgy 
