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    Re: Accidental map of the doldrums
    From: Don Seltzer
    Date: 2014 Jan 4, 07:49 -0800

    The Mediterranean data is surprisingly sparse, even considering the limitation to American shipping. I suspect that the data extracted from logs was only for when lat-lon was recorded. Once past the Straits of Gibraltar, some vessels dispensed with these observations, and switched to coastal piloting instead (Cape Passero bearing NNW 3 leagues).

    Don Seltzer
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