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.

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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. Public Domain Mark. Source: Wellcome Collection.