Page:Theophrastus - History of Stones - Hill (1774).djvu/113

 XLI. Hitherto has the Pumice been treated of: Hereafter are to be conidered the Natures and Caues of the Diverity of the other everal Kinds of combutible and incombutible Stones; from the Hitory of which this Digreion has been made.

XLII. There are, beide what has been already named, among the Stones which are cut as Gems, other Differences, in regard to their everal peculiar Qualities.

XLIII. Some of which are in the external Appearance only. Of this Kind are thoe of the Carnelian, the