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    Re: Jargon, terminology , words' meanings, etc.
    From: David C
    Date: 2018 Dec 3, 19:50 -0800

    The author of

    "Tables for Azimuths, Great Circle Sailing, and Reduction to the Meridian, with improved "Sumner" and Marcq St Hilaire Method"

    was H S Blackburne (Extra master). He was described as

    Late Nautical Adviser and Principal Examiner of Masters and Mates in New Zealand.

    Was Blackburne dead?  No!

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