Page:Theophrastus - History of Stones - Hill (1774).djvu/305

 Upon this Plan it will not not be difficult for an accutomed Mind to arrange the whole Foile World; and this may erve to give the intended Idea of an artificial Arrangement.

A general Intance of the Method of finding the Places of the everal Species, may be een in the Exordiums of the Spatogeneia. As for Example;

The Series of Foils make one great Circle; for ever returning into itelf.

There are a few primitive Bodies; Chalk, Clay, Bitumen, Talc, and the Mineral Acid.

Thee, variouly mixed, form many different compound Foils: Which mingling, in ome Places, farther with one another, give Decompounds.

Thee (in other Places) give up their everal Primitives again to Water: Which delivers them pure in ome other Parts; ready to form mixt and compound Bodies again.

To trace them thro' thee Combinations, and to their natural Analyis again, is the whole Buines of the Student in this Science: For here is no Ditinction but by Mixture: No Origin from Egg, or Seed.

A great deal of pure Clay mixed with a little Quantity of various Stones, forms the different Clays.

And a great deal of Stone with a little of the Clays, forms the various Species of Stones. An