Three letters on mining and smelting : in which a method is laid down, whereby these useful sciences may be greatly improved; to which is added, a fourth letter; setting forth, a discovery of an easy method to secure ships bottoms from worms
A 1750 treatise by Dietrich Wessel Linden, printed by Keith, setting out methods for improving mining and smelting, with an added letter on protecting ship bottoms from worms. The pictures are a woodcut decorative initial letter I with dense foliate scrollwork in a black-on-white block, and a red wax seal impression of a standing figure within a lettered border, both useful for ornamental frame and seal motifs.
