< 5055 ) 
try in Opium, whereby, according to him. it becomes not ooly 
a very fafe mediciue, but alfo a highly uieful ooe for very ma-- 
cy caleSj if rightly ufed. 
Take ih^n, faith he^oi true Theban Opium^ fliced.one pound* 
and pour upon it in a low Cucurbit ten pounds of frefli Juyce 
of Quinces very ripe, adding to it one ounce of pure and very 
dry Salt of Tartar 5 expole ic to a gentle heat for a day or two, 
uatill there appear fome bubbles, which is a fign of the fermen- 
tation at hand. Then, to further the lamej add four ounces 
offugar very finely pulverifed, andobferveftillfucha degree 
of heatj as Fermentation requireth $ which by fo doing will 
duly proceed, and youfliall fee the Opium manifcftly rife asid 
d\So\v^ per mifiima 5 raking heed mean while of theftrong- 
fcented ftupifying Sulffhur, which then is wont to fteam out. 
You'l then alfo fee a part of the impure volatil 5*cum to emerge 
at the top3& the more terreftrial to fubfide at the bottom of the 
?€ffeh the purer partftayingin themiddle^ which is a red li- 
quorj like a Ruby^ tranfparent^ which you are wich care to fe^ 
parate, filtrate5and by a due diftillatida to thicken ro the con- 
iiftence of hony* And this you muft again diffolvc by ao high* 
ly rectified Spirit of Wine, filtring it, and- digefting ic for a 
moneth, that whatfoever of crude there may yet be in it, may 
be by that celeftial fire ripened and brought to perfedice. 
This Spirit being abflradied to a due confiftency^you will find 
thisEfferxe to be of that virtue^that the fourth pare of a graiOj 
or at moft half a grain^taken in a proper vehcle^ moift or dry^ 
will perform very wonderful things. 
Having difpateh't Digeftion and Fermentation, he comes 
to Trituratien^ his laft 3 by which alone he efteems many greac 
and admirable things may be performed in Chymiftry. To 
wl^ich he is perfwaded he fhall very eafily obtain the aflent of 
all ^hofej that fliall but obferve and well confider the two fol- 
lowing Operations, both experimented in the Laboratory oi 
Gottorpjin the prefence ofthelate Duke Fredericj^^ a Prince 
exceedingly well verfed in all kind of knowledge^ efpecialjf 
in that of Chymiftry* 
The firft Operation was made upon Gold s whichj though 
the moft fixed of all bodies we know, was3 though it will ro£ 
yield to Fire nor to any other koowo diffolvent, mijfer'd by 
Grifiiw^ 5. which he affurethhinife^^^^ to have been an eye^ wit- 
