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    Bowditch octant
    From: Omar Reis
    Date: 2004 Nov 19, 15:19 -0200

    Hello,
    
    I'm trying to build an octant similar do Bowditch's.
    
    I found a beautiful image of it on the following address:
    
    www.nathanielbowditch.org/images/sextantb.jpg
    
    I wonder if anyone knows more details about this instrument:
    
    1) Scale radius
    
    2) Number of minutes in the vernier ( i.e. tick divisions per degree )
    
    Regards
    Omar
    
    
    

       
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