(JJtf) 
ME DIG IN A. Thofe Letters came accompanied with a Synopfis in 
Print, giving a brief Account of the Contents of the faid Treatife, to this 
effedt, vizt 
That this Authorhpxh compos s d a Syfiem of Natural Philofophy by Ob- 
servations and Experiments, accomodated to the benefit of Humane Life a 
and fubfervient to Phyftck^a nd other fub alternate Arts which Philofophy he 
pretends to have raifed on Principles, that are certain Bodies drawn out of 
Mixts which, though in themfelves invifible and incoagulable, yet be- 
come,according to him, vifible by their Contrariety and mutual Operation 
upon one another, and fo do conftitute the Temperaments of Concretes, 
and caufe not only their Defoliation, but alfo their Redintegration. 
Thefe Principles he undertakes to prove to be Two Salts, call'd by him 
Acidum and Smurn which, as they work more or lefson one another, 
when blended, fo they lofe more or lefs of their Volatility, and the degrees 
of their contrariety : And from their various Complication (in which he 
places the whole bufinefs and moment of Philofophy ) he holds, that that 
great Multiplicity of Concrets, which is in the Vniverfe , does refulr. 
In Particular he deducethfrom the faid Principles the caufe of Ferments 
and their Variety, the nature of Generations , Concretions , Putref aHions, Pre~ 
cipitation % & c. and fhewetb, how thofe Principles run through all Minerals , 
V i get able s and Animals, by their manifold combinations, and various wayes 
of adfcing on one another. 
He explains alfo the Mixtures of Alkaly s, Vitriols , Armoniaks, Sulphurs , 
Mercuries, and explicateth the Properties of Dijfolvents , as alfo Tafis, 0 - 
Jors, Colors, dec. all from the fame principles. 
And having raifed this Stru&ure of his, as far as he judgeth it fufficient for 
Subordinate Arts, he proceeds to adapt it to the Art 01‘phffick. And ap- 
plying it to Animal Bodies, he thence drawes the Diverfity of Humors and 
Tempers, theBegining and Duration of Vital Heat,the Motion of the Limbs, 
the Faculties of Entrals, the Origin, Vitality and Properties of the Blood, 
and the various Fermentations therein •, fhewing the Diftempers of the 
Ferments and Juyces in Animals, the nature of Coagulations, Diffolutions, 
Feavers and other Symptoms- as alfo the Original of Poyfons in Animal 
Bodies; concluding with an Indication of the proper remedies (as he con- 
ceives) of many Difeafes. 
Whether this Philofophy be New , iseafeto Judge. 
A Note to be inferted above, pag. 544. after lin. 12 . 
T His Re/? ( by Mr. Moolis fuggeftion ) may berendred more convenient, if, inftead 
of placing the Screw Horizontal, it be fo contriv’d? that it may be laid parallel to the 
F.frinoffid.1, or to the Diurnal motion of the Earth. For by that means the fame thing may 
•be perform’d by the fingle paction of one Screw? which in the other way cannot be done? but by 
the turnirigof both Screws ; Aswilleafily appear to thofe that fhal confident. 
In the S A V O T: 
Printed by T. N. for John Martyn, Printer to the Royal Society, and are 
to be fold at the Bell a little without T mple-bar . 1667. 
