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Just to add a bit more about the various 2-vol sets of Bowditch.

The set I have is the 1977 1386-page vol 1, and the 1981 916-page vol 2,
both bound in dark green. This second volume (of the tables) has 200 more
pages than the 716 pages quoted by Glendon for his 1975 vol 2.

In the preface to this 1981 vol 2 is stated-

"  ... This volume also provides a glossary which reflects the marine
navigator's sphere of interest in such branches of science as astronomy,
meteorology, oceanography, cartography, electronics, etc. An attempt has
been made to define the terms in the language and from the viewpoint of the
marine navigator. Only those meanings more or less directly related to
navigation have been included.

In addition to the inclusion of a glossary, the differences between this
edition and the 1975 edition may be briefly summarised as chapter
rearrangements, deletion of those chapters the contents of which are
considered to be covered adequately in the glossary, changes in certain
tables due to changes in the reference ellipsoid (tables 5 and 6) or the
refraction value used in the computations (tables 8, 9, and 22), the
addition of a compact traverse table (tab. 38), two vertical angle tables
(tables 39 and 41) for use in piloting, and a geographic range table (tab
40)."

The glossary included with the 1981 volume is a 219-page section which
would qualify as a valuable reference work on its own if published
separately. Very up-to-date and comprehensive.

Because the 1977 edition of vol 1 was intended to go with the 1975 volume
2, it is possible that such extensive modification of volume 2 in 1981
might cause difficulty in any cross-referencing in vol 1 to vol 2, but I
have not become aware of any such problems.

George Huxtable.

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>Yes Dan, my 1975 Vol. II is dark green (faded) in colour. Its preface states
>" This volume of the extensively revised edition....", but makes no
>reference to the year of the revised edition! So far, all the cross
>references from my 1977 Vol I to my 1975 Vol II match up...suggesting that
>Vol II was meant to last several Vols I. But like you, I can't recall having
>seen a 1975 Vol I
>
>Lee Martin
>----- Original Message -----
>From: "Dan Allen" 
>To: 
>Sent: Friday, September 27, 2002 2:43 PM
>Subject: Re: 1966 Bowditch: One volume or two?
>
>
>> On Thursday, September 26, 2002, at 08:51 PM, Glendon wrote:
>>
>> > I have a 1977 edition, two volumes, first volume 1386 pages listed as
>> > 1977
>> > edition, second volume (tables) 716pages...and listed as 1975 edition.
>> > As
>> > far as I can tell, these are a companion set, with the 1975 Volume II
>> > serving several editions of Volume I. The preface to my 1977 Volume I
>> > talks
>> > about "extensive revisions" and makes no mention of being a reprint
>> > from
>> > 1966.
>>
>> Ah yes, so the tables came first in 1975, then the text in 1977, then
>> the tables were revised in 1981, and then the text in 1984.
>>
>> To be sure, can you confirm that your 1975 volume 2 tables volume is a
>> dark green in color?
>>
>> Dan

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george@huxtable.u-net.com
George Huxtable, 1 Sandy Lane, Southmoor, Abingdon, Oxon OX13 5HX, UK.
Tel. 01865 820222 or (int.) +44 1865 820222.
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