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Show PRODIGY IS DEAD. New Jersey Man Known as the Llghtu nlng Calculator. r ' William Vnllancc, tho famous lightning light-ning calculator, who could do any sum In mathematical calculation mentally and with hut nn lnstnnt's hesitation, Is dead at Trenton, N. J., ngod 30 years. Vallnnco could duplicate tho feats of any of tho lightning calculators calcu-lators nnd beat them all by stating instantly in-stantly any desired dato In history. Ho could not toll how ho know history, but would rattlo off fact after fact without over making a mistake. JIo could givo lnstnnt answer to such arithmetical questions as multiply 380,487, by 4,011. Feats In algebra woro his delight. , |