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    Re: Northing correction to Noon longitudes.
    From: George Huxtable
    Date: 2005 Jun 8, 12:02 +0100

    Henry Halboth wrote-
    >It all seem unnecessarily complicated. Within the appropriate time range,
    >why not calculate a series of ex-meridian Latitudes for specific times
    >and advance each to the time wanted, as the hydrographical surveyors did,
    >and have the thing over with. I believe that Frank said at one time that
    >he had a copy of Wharton + Fields book on hydrographical surveying, in
    >which, if my recollection is correct, the matter is dealth with quite
    I can see how the procedure Henry describes would give a value for
    latitude, but I don't see how you get longitude that way. Perhaps Henry
    will provide a bit more detail for those of us who are slow to take such
    things in.
    contact George Huxtable by email at george@huxtable.u-net.com, by phone at
    01865 820222 (from outside UK, +44 1865 820222), or by mail at 1 Sandy
    Lane, Southmoor, Abingdon, Oxon OX13 5HX, UK.

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