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S. J. Evans Papers,
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Copy-book relating to mathematical and navigational topics including arithmetical rules, sun's degrees of declination and altitude, measures used in various ...,

Copy-book relating to mathematical and navigational topics including arithmetical rules, sun's degrees of declination and altitude, measures used in various trades, land surveying, geometrical problems, trigonometry, compass reading, detailed drawings of various subjects, decorated tables and diagrams of the planets and zodiac signs. 166ff., used first during 1782-85 by John Evans, parish of Llanychaearn, Cardigan, and later during 1816-24 by John Evans, [1796-1861, see A Dictionary of Welsh Bibliography]. See entry pp. 49-51 in former schedule, 'Schedule of the S. J. Evans Papers', available in hard copy in the NLW, for detailed list of contents and suggested provenance of the book.

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