Large horizontal headpiece ornament featuring symmetrical scrolls, foliate designs, and a central urn-like motif.

PRACTICAL TREATISE

M I N E S ;

Collection of the principal Mining Works that have been performed.

Horizontal divider composed of a row of repeating floral fleurons.

OF THE COMPANY OF MINERS.

Ornate decorative initial 'L' inside a square frame with floral patterns.The surprising effects of Mines are a subject so worthy of everyone's curiosity, and the knowledge of them is so necessary for the Attack and Defense of Places, that one should neglect nothing to learn their History. This would undoubtedly be the surest means of perfecting this Art. Persuaded of this utility, one has gathered with great care everything remarkable found on this subject during a fairly long succession of years; the manner in which one proceeded; the quantity...