ftions of Matter, the ^^alkes , that difference particular Bo- 
dies, refult: whence it may be rationally concluded, that one 
kind of Bodies may be tranfmuted into another; that being 
ineffcjdl no more, than that one Parcel of the Univerfal Mat- 
ter, wherein all Bodies agree, may have a Texture produced in 
it, like the Texture of fome other Parcel of Matter, common to 
them both. 
To this.H)'/'^?^^^//, is fubjoin'd an Examination of iheSdo^ 
lajlick^ opinion of Subflmtial Forms i where the AuthorjFir/?, 
States the Controverfie/^^m^gives the Principal reafons, that 
move him to oppofe that Opinion; then, anfwersthe Main 
arguments employed to evince it ; further , affigns both the 
Firfi Caule of Forms ( God'^,) and the GvAnd Second Caufe 
thereof(L0^^/M^^/(?«;). and lajily; proves the Mechanical Pro- 
duction of Forms y grounding his proofj/^^n^/y upon the Man- 
ner, by which finch Conventwri of Accidents, as deferveto 
pafs for a F<?r»?, may be produced; as that the Curious Shapes 
of S^hs (believed to be the admirablefl: EffecSts and ftrongeft 
Proofs oi SubJlantial ' Forms') may be the^Refuks^o&tf'm^^r^ • 
/^r^ being able to produce Vitriol as well sls i^ature: partly, 
upon the poflSbility of I{eproducing Bodies by skill, that have 
' been deprived of their xQ^xxitASubflantial Forms i VVhere 
he oXXcA^tithQ Redintegration of Saltpetre ^ fuccesfully perfor- 
medi^by himjfpll; though his Attenipts j made trpon the dift 
iipation and re-union of v^/w^^r,vf&^, Sea-Salt, and Vitriol, 
proved; ( by reafon of hindrances rather 5 than 
of any impoflSbih'ty in the Nature of the Thing ) lefs fuc* 
cestui. 
. In the vS^^;^^ and" the Author, appealing 
to the Teftiifiony of Nature, to verifie his Dodrine, fets down, 
both {(^mQ Obfervations, of what Nature dogs without beings 
over-ruled by the power and skill of man ; and fome Expe- 
riments , wherein Nature is guided^ and as it werejmaftered bf 
Art, 
The are fbun 
ThQ jirJi is taken from what happens in the Hatching op 
am 
