"A sectional elevation of incorporating mill, showing one runner and ploughs (p, p); C, curb of bed; M, machinery in tank, underground; D, drenching apparatus; l, lever-board, or shutter; t, tank; f, f, floor line." — Encyclopedia Britannica, 1893

Gunpowder Mill

"A sectional elevation of incorporating mill, showing one runner and ploughs (p, p); C, curb of bed;…

"A sectional elevation of incorporating mill, showing one runner and ploughs (p, p); C, curb of bed; M, machinery in tank, underground; D, drenching apparatus; l, lever-board, or shutter; t, tank; f, f, floor line." — Encyclopedia Britannica, 1893

Gunpowder Mill

"A sectional elevation of incorporating mill, showing one runner and ploughs (p, p); C, curb of bed;…

"Breaking-down Machine. H, hopper; B, endless band; R, rollers; M, boxes to receive meal." — Encyclopedia Britannica, 1893

Gunpowder Mill

"Breaking-down Machine. H, hopper; B, endless band; R, rollers; M, boxes to receive meal." — Encyclopedia…