"Sectional view of diving bell and barge, employed on the River Clyde. All the appliances are worked…
"Frame of Iron Ship. A, double bottom; B, bracket frame; C, coal-bunkers; D, upper or spar deck; D',…
"G, G, gunwale; K, keel; T, thwart. GUNWALE, GUNNEL. Naut., the upper edge of a ship's side; the uppermost…