PUMICE
Dictionary of Science, Literature and Art · 1854 · p. 26
(Lat. ptimex.) A porous volcanic product, consisting chiefly of silica and alumina, with traces of pot ash, soda, and oxide of iron. [s. 1016]
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The Grocer's Eneyclopedia (1911)
Jack's Reference Book for Home and Office : An Encyclopaedia of General Information: English Dictionary (1909)
Chamber's Twientieth Century Dictionary (1908)
Pears Shilling Cyclopedia (1898)
Dictionary of Science, Literature and Art (1842)
A Military Dictionary (1810)
PUMICE-STONE
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An Illustrated Encyclopedic Medical Dictionary (1894)
Pumice-stone
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An Illustrated Dictionary of Words Used In Art and Archealogy. (1883)
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Zell's Condensed Dictionary (1879)
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