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    Re: Lunars: Weymouth log (revised)
    From: Frank Reed CT
    Date: 2004 Dec 8, 21:53 EST
    Alex, you wrote:
    "This applies to "other log books". What do you think DR Lat
    means in THIS log book?"
    Oh sorry. I should have looked at that.
    Considering that there appears to be no cumulative difference (only daily "random" differences), I think it's safe to assume that he is refreshing the DR latitude daily with the observed latitude. This is an intermediate period when navigators were still not certain that the observed latitude was necessarily correct (though probably correct). Also, navigators would sometimes speculate about currents based on the differences between Lat Obs and Lat DR.
    Frank R
    [ ] Mystic, Connecticut
    [X] Chicago, Illinois
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