Glossary
waste mold
This term is used in two contradictory ways. In its most common use: a piece mold made from a model (usually of clay or wax) when the model must be broken apart (wasted) in removing it from the mold. The other use: a mold from which only one cast can be taken, because the mold must be broken apart and discarded in order to release the cast. This is how lost-wax casting is accomplished, for instance. The use of this term is highly problematic then, unless the user immediately explains the meaning intended.
xylography
A printing technique that involves carving text in relief upon a wooden block. When inked, the impression is transferred to paper. The oldest known printed works were produced by this method in Japan and China during the 8th and 9th centuries. This method of wood-block printing appeared in Europe in the 14th century and eventually inspired Johannes Gutenberg to create type pieces out of metal.
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