( IOOI ) 
and other Authors, of which he gives a Catalogue both 
of the ilncient and Modern which he has confulted in this 
Undertaking : Which is not a bate Tranfiation, a Com- 
ment being added upon each particular, efpecially upon 
all the Chymkal Procejfes which he has ftarched cut from 
their original Fountains, and explicated the Prvceft it 
felf, adding as a Supplement a Rationale upon the lame, 
and having examined the Prescripts of other Authors, he 
ihews wherein they chiefly differ from thefe, and gives 
their Procejfes at large, if new. 
He promifes alfo a fecond Part, being the Officina Chy- 
rnica, or a Compleat Body of Chymijlry, explicating, 
i. The Principles of Natural Bodies. 2. The Fornaces 
and Inflruments of Art defcribed with their Figures in 
Copper Plates, 3. The Operations of Chymiftry per fe. 
4. The Preparations of Metals and Minerals. 5. The 
Preparation of certain Vegetable and Animal Subftances. 
Next, he obviates fome Objections againft the Pub- 
liftiing this Work in Englifh, and di-fcovering the Secrets 
of the Art to the Vulgar, which he hopes he has made 
fome amends for, by divulging feveral Seems not ge- 
nerally known even by the Learned ; amongft which is 
the Prince's Powder, once accounted a great Sccnt y and 
fold for above 5 /. a Dofe ; the Preparation whereof is 
Lib. 1. Cap. 9. Sett. 80. Pag.$z6. which happens to be 
omitted in the Table. And as a general Anfwer adds, 
that all particular Interefls fhould be facrificed to the 
Common Good, which ought to be preferr'd before any 
Private one how dear and valuable foever. And jufliSes 
himfelf in this, by the Examples of Hippocrates, Gallcn, 
Paracelfus, Celfus and others, who all publilht a Syftem 
of Phyfick in their own Languages ; as like wife from 
the prefent Ufage of the French, who now tieatof all 
Subjects in their own Tongue ; and as he conceives, 
they are not to be imitated only in their Vices, 
II. Phthi, 
