N. Chimney of this furnace constructed of bricks, as far as the contraction of the great chimney S of the forge, and which is terminated by a summit pipe rising 2 or 3 yards above this contraction.
B. Forge for annealing the pieces of bronze; for drying the gilded pieces, &c.
C. Chimney of communication between the annealing forge B, and the space D below the forge. This chimney serves to carry the noxious fumes into the great vent of the factory.
U. Bucket for the brightening operation.
A. Forge for passing the amalgam over the piece.
R. Shelf for the brushing operations.
E E. Coal cellarets.
O. Forge for the deadening process.
G. Furnace for the same.
M. An opening into the furnace of appel, by which vapours may be let off from any operation by taking out the plug at M.