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 479
plaster of Paris, except that the material in the latter case is spread on in a plastic condition,while the former is rammed and hammered on. It is a very difficult and tedious one, requiring severalweeks and sometimes months to make a mould for a life-size statue. In Germany a composition isused…
Mechanical engineering -- Dictionaries
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