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London, John oflocked

(fl. c. 1260)
  • Wilbur R. Knorr


London, John of (fl.c. 1260), mathematician, was praised by Roger Bacon (d. 1292/1294) in his Opus tertium as one of two 'perfect' mathematicians (the other being Peter of Maricourt, called Peregrinus, author of a noted tract on the magnet), and judged superior to two other 'good' mathematicians, namely, ...

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Oxford Historical Society
A. B. Emden, , 3 vols. (1957–9); also (1974)
Bulletin of the Institute of Historical Research