English: Reed water tube boiler of about 1900 built by Palmers Shipbuilding and Iron Company, Jarrow, England. The incomplete casing reveals the internal arrangement of water tubes. Coal was fed into the boiler through the three hatches on the side nearest the viewer. "A speciality of [Palmers' engine works] is the manufacture of the "Reed" water-tube boiler, the invention of Mr J. W. Reed, manager of the engine works department, which has been adopted with well-known results in ... high-speed [torpedo boat destroyers] ..., and also in vessels constructed for the Admiralty on the Clyde. It may be observed that nearly 25 miles of tubes are used in the manufacture of the boilers and machinery of each 30-knot destroyer." (Dillon (1900) pp. 33–4)