Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 52
the proper form, a boy blows through the iron tube, while the workman continues to roll theball upon the marver. During the previous operation of marvering, the mass of glass is fashionedso as to give the outer extremity a conical form, the extreme end of which becomes the outer axis ofthe globe…
Mechanical engineering -- Dictionaries
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