Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 215
d of this material alone are usually of short span and simplegirders. See Strength of Materials. Cast iron as a material is not considered as safe as wroughtiron or wood; from some flaw, from frost, or from sudden jars, it gives way without notice; but as it isstronger per square inch than wrought… … n 682.
Mechanical engineering
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