Page:Theophrastus - History of Stones - Hill (1774).djvu/37

 IX. Thee Qualities Stones have, therefore, from the common Differences of the Matter, and Manner of the Affluxes of their contituent Parts: But beides thee, they have others which arie from the more peculiar Powers of their concreted Maes: Such are their acting upon other Bodies; or being ubject, or not ubject to be acted upon by them. Thus ome are fuible, others will never liquify in the Fire; ome may be calcined, others are incombutible;