Locomotive catechism; an up-to-date, practical and complete work on the locomotive--treating on the design, construction, repair and running of all kinds of locomotives .. (1908)
Grimshaw, Robert, 1850- [from old catalog] · New York, The N. W. Henley publishing company · leaf 197
Figs, no and in. The ganger Superheater. Q. What are preventives of scale? A. i. The choice of a water having therein no mineral sub-stances that will be left behind in the boiler when the waterhas been turned into steam; 2, filtration of the water, toremove substances which are only mechanically…
Locomotives
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