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    Re: How Many Chronometers?
    From: Paul Hirose
    Date: 2009 May 08, 21:37 -0700

    George Huxtable was perplexed by this page of Toynbee's 1853 MNRAS
    article on rating chronometers with lunars:
    
    http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?journal=MNRAS&year=%3f%3f%3f%3f&volume=..14&letter=.&db_key=GEN&page_ind=20&plate_select=NO&data_type=GIF&type=SCREEN_GIF&classic=YES&high=4899d32e1929742
    
    It's not clear to me either, but I believe E or W indicates which Sun
    limb was observed. I.e., on each date both Sun limbs were observed
    against the Moon near limb and the results averaged.
    
    If the Sun near limb observation is always on the upper line for
    each date, that would account for the alternation of E and W every two
    weeks.
    
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