Dictionary of National Biography, 1885-1900/Chillingworth, John (fl.1360)

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John Killingworth in the ODNB.

1359228Dictionary of National Biography, 1885-1900, Volume 10 — Chillingworth, John (fl.1360)1887Agnes Mary Clerke

CHILLINGWORTH, JOHN (fl. 1360), mathematician, was a fellow of Merton College, Oxford, where he studied with great diligence, and founded a school of zealous promoters of mathematical inquiries. He wrote learned treatises on astrology, rejected the extravagances, but retaining what he judged to be the sane substratum, of the science. Leland describes his 'Algorismus' as ingenious and effective; he had also seen his 'Canones et Tabulæ Astronomica,' Chillingworth wrote besides: 'De Judiciis Astronomiæ,' 'De Crepusculis,' 'De Ascensionibus Nubium,' 'Arithmeticum opus,' and other works not enumerated.

[Leland's Commentarii de Script. Brit. (1709), p. 455; Bale's Script. Brit. Cat. vi. 460; Pits, De Angliæ Scriptoribus, p. 489; Tanner's Bibl. Brit. p. 177; Sherburne's Sphere of M. Manilius, p. 37; Brodrick's Memorials of Merton, 27, 222.]