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    Re: Instrument for HA, Lat ... of points on the Sumner line may be directly obs at sea
    From: Douglas Simpson
    Date: 2009 Oct 7, 13:12 +0800
    thanks for that Wolfgang
    Regards
    Doug

    On Tue, Oct 6, 2009 at 11:23 PM, <waldendand---.com> wrote:

    Sorry.  Both links work for me.  May depend on location.  First link was a short note from the Reno meeting of the Astro Soc Pacific, June 1927, describing the instrument.  All necessary details are in the Patent.

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