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In China an oil is procured from the seeds of vernicia montana, which, by the addition of alum, litharge, and steatite, with a gentle heat, easily forms a valuable varnish which, when mixed with resin, is employed in rendering the bottoms of vessels watertight. P. Champion, Indust. Anc. et Mod. de l'Emp. Chinois." 114. Formerly it appears to have been different with them.
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