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 631
much stronger; the border-wax higher and broader in the spout, as you may perhaps have to pour off suddenly. Biting-iii.—In biting-in the signal to pour off your acid is, when you perceive the ground breakingup,—that is, coming up in patches. During the biting-in the soft camel-hair pencil may be… … Aqua-tinta engraving.—In this we have another variety of entertaining engraving; one, moreover,which, unlike the last, is still much practised by professional engravers. It forms the ground-work ofmany of the best modern prints, and is generally resorted to where the object is to produce a plate,…
Mechanical engineering
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