An idea of an artificial arrangement of fossils, according to unalterable characters, and superadded qualities : also of a natural method, according to their ascent towards their greatest perfection / By Sir John Hill.

Date:
1774
Catalogue details

Licence: Public Domain Mark

Credit: An idea of an artificial arrangement of fossils, according to unalterable characters, and superadded qualities : also of a natural method, according to their ascent towards their greatest perfection / By Sir John Hill. Source: Wellcome Collection.

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    I TRIBE II. ORDER I. FAMILY I. Simple calcinable Foffils foluble in Acids. Clafs i.—Pellucid. Spars. 2—Op ake Earths alkaline. FAMILY II. Simple calcinable Foffils not foluble in Acids. Clafs i.—Plated Selenite. 2. —Thready Striated Talc. 3. —Granulated Plaijler. TRIBE III. Simple inflammable Foffils. Order 1.—Solid Sulphur. 2.—Fluid Naphtha. TRIBE IV. Simple incombuftible Foffils. Order 1.—Plated Talc. 2.—Thready Ajbejlos. TRIBE V. Simple foluble Foffils. Order 1.—Neutral Rock Salt. 2.—Alkaline Natrum. .TRIBE VI. Simple Metalline Foffils. Order 1 .-—Malleable Metals. 2.—-friable Semi-metals. SERIES