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    Re: My plotting board
    From: Bill B
    Date: 2015 May 06, 18:07 -0400

    On 5/6/2015 1:06 PM, Frank Reed wrote:
    > Bill and Sam,
    > This is a /bad habit/. May I suggest: don't refer to these simple scaled
    > plotting sheets as "Mercator". That's a long-standing abuse of the term
    > in navigation lingo, apparently originating in USN post-war practice.
    > These charts are simply "conformal" or if you want something more
    > obvious, more descriptive, call them "longitude-scaled plotting sheets".
    I'm a bit confused here. When I suggested constructing a Mercator sheet
    for a specific area, I did not mean from a UPS. I was referring to
    keeping longitude lines equally spaced, and using Bowditch Table 6 (was
    Table 5?) Meridional Parts to arrive at the spacing of the parallels.
    My reference is "Practical Celestial Navigation," by Susan P. Howell,
    6rh printing, 2003, published by Mystic Seaport.  If memory serves, Mrs.
    Howell was colleague of yours at Mystic Seaport who lost her life when a
    training ship, Marques, went down near Bermuda.
    If there is a question in there, is her method a "bad habit?"
    I am guessing scanning the relevant pages and posting on NavList would
    be copyright infringement. As a creator with Library of Congress
    registered copyrights, I am like you, especially prickly on that
    subject. If I scanned the pages and sent them to Samuel off list, would
    that qualify for the "limited copies for instructional use" loophole?
    PS Along with lofty title of "Head cartographer, Centennia Historical
    Atlas, HistoricalAtlas.com" do you also hold the title of "Garbage and
    Trash Removal" shared by many other small business owners? Or did you
    write that out of your job description when you were writing it? ;-)

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