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    Re: Early XVIII century nav book
    From: Alexandre Eremenko
    Date: 2012 Mar 11, 22:53 -0400

    Frank,
    
    > There's an edition of this book by Joshua Kelly from 1733 on Google Books:
    > http://books.google.com/books?id=xn1ZAAAAYAAJ. Any differences?
    
    I don't know. I did not compare. "My book" has MDCCXXIV in the bottom
    of the title page. The oldest Cel Nav book that I read was by Davis
    himself,
    the inventor of the backstaff,
    but the book did not contain any technical details on the instruments.
    It was purely theoretical and very terse.
    
    Astronomical part of the Kelly book is also of some interest: it
    probably reflects
    the state of knowlede of astronomy and math among educated people in the
    early
    XVIII century:-) This guy is not a seaman but apparently a professional
    teacher: he offers a variety of courses for young gentleman on a variety
    of applied math subjects listed in the Advertisement on the first page.
    
    I can try to make some list of XVI-XVIII books but there are
    probably not many.
    
    Alex.
    
    
    
    

       
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