area for such purposes, but mayconsist of a short wide cylinder with gridiron orifices revolvingslowly at the top and bottom of the air air-pump. 89. The general arrangement of the machinery and fuel in screw-propelled vessels of the Royal Navy is illustrated by the transversesection of H.M.s screw… … 171 STEAM NAVIGATION. 90. The question of auxiliary steam power to be used occa-sionally, as well for commercial as for war purposes, is one of thehighest importance and interest, and one, moreover, which expe-rience has not yet enabled us perfectly to understand andelucidate. For commercial…
Steam-engines · Steam-navigation · Locomotives
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