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    Re: Tide tables in circular diagrams
    From: Wolfgang K�berer
    Date: 2006 Feb 7, 08:10 +0100

    Just a little bibliographical information:
    The Brouscon tide tables are the subject of a detailed study by a frenchman:
    Dujardin - Troadec, Louis
    Les Cartographes Bretons du Conquet. La Navigation en Images 1543 - 1650.
    Brest 1966
    The Brouscon manual that supposedly belonged to Sir Francis Drake, then went
    to the Pepys Library, was reprinted by Nottingham Court Press in 1980. It
    contains an introduction and explanation by the late Derek Howse.
    Derek Howse also published an article on "Some early tidal diagrams" in the
    "Mariner's Mirror", Vol. 79 (1993), 27 - 43, which may answer some of your
    D.Waters "The Rutters of the sea" (New Haven 1967), which deals with the
    early french rutters has an appendix on circular tide tables.
    Regards, Wolfgang
    -----Urspr?ngliche Nachricht-----
    Von: Navigation Mailing List
    [mailto:NAVIGATION-L@LISTSERV.WEBKAHUNA.COM]Im Auftrag von Piccer
    Gesendet: Montag, 6. Februar 2006 23:14
    Betreff: Re: Tide tables in circular diagrams
    ----- Original Message -----
    From: "George Huxtable" 
    Sent: Monday, February 06, 2006 10:20 PM
    Subject: Re: Tide tables in circular diagrams
    > Willem Piccer wrote-
    > At the moment I am having a closer look at the Brouscon circular tidal
    > To use them is, as far as I can see, not so difficult but what I want to
    know is how he constructed
    > these tide tables.
    > For an explanation I went looking on the internet but cannot find a good
    explanation on how he did
    > it.
    > However I found an instruction/ explanation on these circular diagrams in
    a pdf file.
    > For some reason this pdf file cannot be printed
    > I don't know how it works for other people but if I want to study
    something I only can do it in from
    > a printed paper and not just from a computer screen
    > Is there on this list may-be somebody who could help me to understand
    better how Brouscon
    > constructed his tidetables?
    > I sent the German pdf file as an attachment and wonder if there is a (
    legal) way to print this
    > ====================
    > I for one, have never even heard of the Brouscon circular tidal diagram. I
    am interested in learning
    > about it.
    > The pdf file wasn't attached to the email message as I received, but if in
    German, it wouldn't have
    > helped me much anyway.
    > As for "I want to study something I only can do it in from a printed paper
    and not just from a
    > computer screen" - Willem, I know that feeling well. For one thing, you
    can scribble comments and
    > notes in the margins.
    > George.
    Look for the attachment in the place where you upload them (
    The pdf file in my view is not too difficult with a lot of numbers and
    drawings. Just give it a try!                    I will sent an brief
    explanation on Brouscon later this week
    > contact George Huxtable at george@huxtable.u-net.com
    > or at +44 1865 820222 (from UK, 01865 820222)
    > or at 1 Sandy Lane, Southmoor, Abingdon, Oxon OX13 5HX, UK.

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