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    Re: No Lunars Era
    From: Frank Reed CT
    Date: 2004 Dec 6, 19:56 EST
    Henry H wrote earlier:
    "It would be of interest to consider whether all navigation calculations
    actually done aboard any particular vessel, aside from a notation of
    position, was actually spread out on the pages of the log book, as
    opposed to being calculated on scraps of paper or in a separate workbook
    which remained the possession of the individual."
    And George H replied:
    "I think Henry has a worthwhile point here. Right from the earliest days of
    lunars, in the 1760s, printed pro-formas existed to systematise the
    calculations involved in a lunar."
     
    The existence of forms for lunars, while certainly interesting, doesn't seem to have any bearing on the original point of the thread. Longitudes in logbooks were almost always marked to indicate how they were determined. See my message to Henry Halboth for more details.
     
    And added:
    "I think we need to recognise that otherwise well-found vessels were
    continuing to make ocean passages, well into the mid-1800s, without lunars
    or chronometers, still adhering to the old methods of latitude-sailing to
    find their way around the globe."
     
    Yes indeed. That's why I mentioned a logbook with nearly exclusive DR longitude from 1858 in the opening message of this thread. The navigator on that vessel, the bark Mary & Louisa, carried a chronometer but only rarely used it. I guess he didn't worry much about longitude in mid-ocean.
     
    Frank R
    [ ] Mystic, Connecticut
    [X] Chicago, Illinois
       
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