Updated arc count:
1. DZLYTN http://www.manntaylor.com/FtSaintM.jpg
(this could be DZLY and LYTN or just DZLY as per msg.
13465)
2. DZLY
http://www.law.fsu.edu/library/collection/LimitsinSeas/maps/bs1b.php
3. LYNE
http://www.law.fsu.edu/library/collection/LimitsinSeas/maps/bs2.php
4.-13. BJNG
http://www.law.fsu.edu/library/collection/LimitsinSeas/IBS091.pdf
14. NENG
http://www.law.fsu.edu/library/collection/LimitsinSeas/IBS093.pdf
(but not evident)
15.-23. MXUS (msg. 13937; msgs. 14573 for 5 though El
Paso/Ciudad Ju�rez, 14637 and 14648 for other 4)

SO,
We can't put a firm number on it. Depends on 2
variable:
1. Where DZLYTN falls. If there is a short LYTN we
have 24 not 23.
2. Other arcs we might not have discovered.

I am not counting ITVA since I think here we would
be talking about features (not figures) which can not
be perfectly geometrically true arcs.

--- Michael Kaufman <mikekaufman79@...> wrote:

> 1. DZLYTN http://www.manntaylor.com/FtSaintM.jpg
> (this could be DZLY and LYTN or just DZLY as per
> msg.
> 13465)
> 2. DZLY
>

http://www.law.fsu.edu/library/collection/LimitsinSeas/maps/bs1b.php

> 3. LYNE
>

http://www.law.fsu.edu/library/collection/LimitsinSeas/maps/bs2.php

> 4.-15. BJNG (12 of these?)
>

http://www.law.fsu.edu/library/collection/LimitsinSeas/IBS091.pdf

> 16. NENG
>

http://www.law.fsu.edu/library/collection/LimitsinSeas/IBS093.pdf

> (but not evident)
> 17.-??? MXUS (msg. 13937; how many are there?)
> SO,
> We can't put a firm number on it. Depends on 3
> variables:
> 1. Where DZLYTN falls. If there is a short LYTN we
> have 18 not 17.
> 2. Also, do we know 12 for BJNG? So it would be
> more
> or less if not exactly 12.
> 3. And how many more arcs for MXUS on the
> channelized
> Rio Grande?
> I am not yet counting ITVA since I think here we
> would
> be talking about features (not figures) which can
> not
> be perfectly geometrically true arcs.
>
>
> --- aletheiak <aletheiak@...> wrote:
> > arif
> > i too believed in this arc report about
> easternmost
> > gmsn
> > & may even have been responsible for starting the
> > rumor about it
> > but i have been unable to substantiate it
> >
> > this border is set at a fixed distance from the
> > river on both sides
> > presumably from both its banks rather than from
> its
> > thalweg
> > just like the manh state line is offset from the
> > merrimack
> > except doubly so
> > as you probably also realized
> > & can see here
> >
>

http://www.lib.utexas.edu/maps/africa/gambia_pol88.jpg

> >
> > however
> > as beguilingly arclike as all this may seem
> > such a regime would not actually presuppose any
> true
> > arcs at all
> >
> > except
> > i would agree
> > conceivably a single one centered at the
> headspring
> >
> >
> > however
> > the source of the gambia river is not in gambia
> > but in senegal
> > as you can also see in the above map
> > & therefore the simple offset regime couldnt
> project
> > such a
> > simple terminal arc sector
> >
> > only by varying the apparent regime & reducing it
> to
> > a single
> > offset center point in the middle of the river
> > could such a final true arc have been produced
> >
> >
> > also the map doesnt show any such terminal
> rounding
> > or bulge
> > as one would expect in such a case
> > but quite the contrary
> > something more like a foreshortening or truncation
>
> > of the basic regime
> > & indeed it makes the cutoff point look quite
> > arbitrary & artificial
> > & somehow distinctly at odds with the basic offset
> > regime
> >
> >
> > so at this point i think the existence of an arc
> on
> > gmsn hasnt
> > been & probably wont be demonstrated
> > & was just a wishful thought & misconception in
> the
> > first place
> >
> >
> > mind you
> > i dont actually know how the gmsn border does
> > accomplish this
> > remarkable turnabout at its east end if not in
> some
> > approximation of an arc or arcs
> >
> > & i can still imagine how it might somehow involve
> a
> > true arc or 2
> > based at some known terminal cross section of the
> > river
> >
> > but i dont believe there is any text that
> specifies
> > to this effect
> > nor any map that suggests it
> >
> >
> >
> > meanwhile
> > i have scoured the ghost frgb lines of the period
> > & have discovered nothing new
> > so our world class border arc census is again
> > stalled
> > at a top count of about 20 now & perhaps forever
> >
> > --- In BoundaryPoint@yahoogroups.com, Arif Samad
> > <fHoiberg@y...> wrote:
> > > Not sure, but isn't there some (at least one
> arc)
> > in
> > > the border of Senegal and Gambia. As far as I
> > > thought, the Easternmost point is directly east
> of
> > the
> > > Center of the arc in that border.
> > > Arif
> > >
> > >
> > >
> > >
> > > __________________________________
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>
>
>
>
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