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    Re: H.O. 203/204, Littlehales, Hydrographic Engineer
    From: Stephen N.G. Davies
    Date: 2017 Mar 23, 15:15 +0800
    "A concise (treatise) on seamanship, historical, theoretical and practical, in which are given the principles both of ship handling and pilotage, (and) the simplest methods for directing (one’s ship) by longitude and latitude, with hourly tables for establishing the correct time by the altitude of the sun and the stars at all times of the year and in all latitudes to 61 degrees (N or S)" 
    Dr Stephen Davies
    c/o Department of Real Estate and Construction
    EH103, Eliot Hall
    University of Hong Kong

    Office: (852) 2219 4089
    Mobile: (852) 6683 3754 

    stephen.davies79---.com
    daiwaisi{at}hku.hk


    On 23 Mar 2017, at 9:58 AM, Brad Morris <NoReply_Morris@fer3.com> wrote:

    Hello Paul,

    In fact, the three references you specify are specified by Littlehales.  Go back to my first email on this thread and examine the image.  In the image, you will find Lalande; Lynn (Horary Tables) and an  1827 reference with a different name than you have, but the work seems to be correct.

    If you are a French speaker, would you mind translating the lengthy title of the Lalande work. Thank you!

    Brad




    On Mar 22, 2017 6:20 PM, "Paul Bedel" <NoReply_PaulBedel@fer3.com> wrote:

    Hi Brad,

    Yes, there were tabular predecessors:

    1793: Jérôme Lalande, after Cassini in 1770,

    1827: Thomas Lynn (horary tables),

    1829: maybe Janet Taylor (??).

    For more details, see Charles H. Cotter in "History of Nautical Astronomy". Why G. Littlehales hav'nt note their name? What was the reason why ? I have no answer.

    Paul.


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