Page:Theophrastus - History of Stones - Hill (1774).djvu/298

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TRIBE II. ORDER I. FAMILY I.
Simple calcinable Foſſils ſoluble in Acids.
Claſs	1.—Pellucid.	Spars.
	2.—Opake	Earths alkaline.
FAMILY II.
Simple calcinable Foſſils not ſoluble in Acids.
Claſs	1.—Plated	Selenite.
	2.—Thready	Striated Talc.
	3.—Granulated	Plaiſter.
TRIBE III.
Simple inflammable Foſſils.
Order	1.—Solid	Sulphur.
	2.—Fluid	Naphtha.
TRIBE IV.
Simple incombuſtible Foſſils.
Order	1.—Plated	Talc.
	2.—Thready	Aſbeſtos.
TRIBE V.
Simple ſoluble Foſſils.
Order	1.—Neutral	Rock Salt.
	2.—Alkaline	Natrum.
TRIBE VI.
Simple Metalline Foſſils.
Order	1.—Malleable	Metals.
	2—Friable	Semi-metals.

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