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    Re: Usefulnes of inspection tables
    From: Gary LaPook
    Date: 2007 Oct 07, 15:20 -0700

    Gary writes:
    
    H.O. 214 was originally published between 1936 and 1946 as each volume
    was computed. It consists of 9 volumes each covering 10� of latitude.
    My set has various publication dates between 1940 and 1970. Thank you
    for the errata sheet. I checked my volumes covering 40� to 59� which
    were published in 1962 and found that the correct values were already
    printed in my set.
    
    gl
    
    On Oct 7, 2:53 pm, "George Huxtable" 
    wrote:
    > Gary LaPook asked-
    >
    > | Regarding H.O. 214, I have seen it mentioned that a number of errors
    > | had been found in these tables, is there a source for errata sheets?
    >
    > From George-
    >
    > I have the British version, Hydrographic publcation HD 486 (IV), Tables of
    > computed altitude and azimuth, vol.IV, for latitudes 45 to 59 degrees.
    >
    > This is the 1951 edition, which tells me that it was reproduced with
    > permission from U S Hydrographic Office H O publication no 214.
    >
    > It also says that the tables have been regrouped into six volumes, each
    > covering 15 degrees of latitude. Was there a HO 214 volume that covered 45
    > to 59, then, or did that coverage differ?
    >
    > And it adds "The explanation has been completely rewritten to bring it into
    > line with current practice in the Royal Navy".
    >
    > The list of errata is printed on page xvi, and a scan is attached here. A
    > listing of just the upper block appears on a pasted-in slip. I imagine that
    > the errors in the lower block might apply to an earlier edition.
    >
    > George.
    >
    > contact George Huxtable at geo...---.u-net.com
    > or at +44 1865 820222 (from UK, 01865 820222)
    > or at 1 Sandy Lane, Southmoor, Abingdon, Oxon OX13 5HX, UK.
    >
    >  HO214 errata.jpg
    > 288KViewDownload
    
    
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