( 5 6 ) is no Comparifon between the Diftance of things inanimate to Animals, and that of one Metal to another. Befides many other Things that may be brought to this Purpofe. It hath already been fa id, how fome Waters turn Sticks into Stones: And in the Nourifh- ment of all living Creatures, there is a con tinual Tranfmutation : and in Metals it is evidenc’d by the Stone Lipis, or Copperas, blue or green, which, as hath been faid, being tkffolv’d in Water without any other Artifice turns Lead, Tin or Iron into fine Copper. And although it may be argued with Pro bability, that Metals do differ fpecifically one from another, becaufe the Definition of Metal agrees to every one of them, as well as unto Gold, for the particular Properties that agree to every one of them. And for that we fee them permanent, and without any Sign, as if Nature did endeavour to change oneForm into another, or heighten them into Gold ; and for many other Reafons that might be alledg’d. Neverthelefs, the contrary Opi- jiion of Callijlhenes and Albertus are very probable ; for it is not concluding, that two Things differ in fpecie, becaufe the fame Defi nition agrees to both of them, unlefs the effen- tial Difference that conftitutes them, fuch be lhewn therein. As if one affert a Man and a Lion to be Animals, he cannot truly infer from thence, that they are of different Species. For fo Peter and Paul would be diftindl in Specie, if it were not for the Differences of rational and irrational, that limit the Genius. So, although the Definition of Metal do agree unto Lead and Silver, as well as unto Gold