Flame, electricity and the camera; man's progress from the first kindling of fire to the wireless telegraph and the photography of color (1901)
Iles, George, 1852-1942 · New York, Doubleday & McClure co. · leaf 82
C(. first in a single flue in the Cornish type,and then in two fluesin the Lancashiretype (Fig. 13). Iftwo flues were betterthan one because theyextended the surfaceat which flame coulddo work, would it notbe still better to mul-tiply the two into scores? Flues were multiplied accord-ingly and… … Fig. 13. ■Lancashire boiler. WATER, NOT FIRE, IN TUBES 59
Fire · Electricity · Color photography
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