Golden Fountain.
The property of a wealthy Jew of Jerusalem. “In twenty-four hours it would convert any metal into refined gold; stony flints into pure silver; and any kind of earth into excellent metal.” (The Seven Champions of Christendom, ii. 4.)
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Entry taken from Dictionary of Phrase and Fable, edited by the Rev. E. Cobham Brewer, LL.D. and revised in 1895.