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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
questions.

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
An: NAVIGATION-L@LISTSERV.WEBKAHUNA.COM
Betreff: Re: Tide tables in circular diagrams


----- Original Message -----
From: "George Huxtable" 
To: 
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
diagrams.
> 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.

George

Look for the attachment in the place where you upload them (
navl@fisheriestrust.com)
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

Regards

Willem

>
> 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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