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    Re: Sight reduction method history
    From: Hewitt Schlereth
    Date: 2013 Nov 3, 11:03 -0800
    Paul, I remember that edition (dark blue cover). Gave my copy to the library when I sold my house. Did not remember it being so long, but do remember D'Ocagne's logarithmic graph for solving Nav triangle and actually had a copy (it was about 30" square) back then.

    Another artifact I sometimes wish I'd hung onto.  :-)


    Sent from my iPad

    On Nov 3, 2013, at 10:37 AM, "Paul Hirose" <cfuhb-acdgw@earthlink.net> wrote:

    Hewitt Schlereth wrote:
    > Lu, older editions of Bowditch have a 15-page chapter "Comparison of Various Methods of Sight Reduction." It's a chronological listing of the various sight reduction methods.
    It's expanded to 61 pages in the 1984 edition. The title should have
    said "history and comparison" since the chapter describes many old and
    now obscure methods, including mechanical devices.
    I filter out messages with attachments or HTML.

    View and reply to this message: http://fer3.com/arc/m2.aspx?i=125442

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