Subject: brownlie reaches cream hill for my birthday<br/>
Date: Feb 01, 2006 @ 23:21<br/>
Author: aletheia kallos (aletheia kallos &lt;aletheiak@...&gt;)<br/>
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<br/><br/>
<div id="ygrps-yiv-672511454">this among other delights <br/>
eventually <br/>
since i get a whole month with him<br/>
<br/>
you may recall the question that provoked his recall<br/>
from the uconn library was<br/>
but why suppose an eglysd datum has ever been stated<br/>
or even can be synthesized<br/>
<br/>
& it was asked in order to both pinpoint the eglysd<br/>
position as well as possible and to classify a visit<br/>
try & pic made by gpsrs in wgs84 at 14m range<br/>
based on establishing the wgs84 meridian of the<br/>
nearest egly monument & then projecting its<br/>
intersection with the wgs84 22nd parallel <br/>
which is believed to be as yet uncommitted by any egsd<br/>
demarcation in the way the 25th meridian has been<br/>
committed by the egly demarcation<br/>
<br/>
<br/>
& under egly he says <br/>
not surprisingly<br/>
ibs number 61 notes that from the coast the boundary<br/>
is demarcated for some 206 miles<br/>
out of approximately 693 miles<br/>
& thus it is the straightline sector which is largely<br/>
undemarcated<br/>
but he then adds his recurrent proviso<br/>
<br/>
the fixing of geometrical lines on the ground involves<br/>
close survey work<br/>
& local adjustments are often necessary to give<br/>
practical sense to the frontier<br/>
<br/>
yikes<br/>
as if to anticipate & preclude our proposed 487 mile<br/>
extrapolation methodology<br/>
<br/>
perhaps<br/>
<br/>
for i am not sure if i am reading too much into this <br/>
<br/>
but lets assume that i am & that there really is no<br/>
objection to our hypothetical procedure<br/>
<br/>
which feels better already<br/>
<br/>
<br/>
in any case <br/>
he then continues <br/>
now unsurprisingly again<br/>
demarcation occurred in 1926 & 1927 & adjustments in<br/>
1938<br/>
& he quotes from a 1950 survey of egypt report as<br/>
follows<br/>
<br/>
in 1938 at the request of the frontiers administration<br/>
the survey erected 187 permanent concrete beacons to<br/>
define the frontier between egypt & the then italian<br/>
colony of libya<br/>
&<br/>
this work was carried on down to latitude 29<br/>
into the sand dune area south of the siwa jaghbub<br/>
depression<br/>
&<br/>
20 special beacons<br/>
rather smaller than the first 167<br/>
were constructed therein upon rocky outcrops by the<br/>
survey<br/>
&<br/>
an egypto italian boundary commission inspected each<br/>
of these beacons in april 1938<br/>
& signed a proces verbal confirming their replacement<br/>
of the temporary marks which up til then had defined<br/>
the frontier<br/>
<br/>
note thats evidently the southernmost 20 rocks rather<br/>
than just some unspecified 9 mentioned in the ibs<br/>
& the date of the proces verbal is given as 3may1939<br/>
rather than 3may1938 in the ibs<br/>
<br/>
unimportant details perhaps unless one is looking for<br/>
them<br/>
<br/>
but it seems this is the document that will tell us or<br/>
lead us to the coords in some datum of the final<br/>
dwarfish rock atop the last outcrop among the dunes<br/>
<br/>
the only catch is<br/>
neither brownlie nor the ibs tells us where to find<br/>
this document<br/>
<br/>
however it still may not matter because what brownlie<br/>
does mention in his egly bibliography is the 1928<br/>
atlas of egypt by the survey of egypt<br/>
which thus could also suffice for our exercise by<br/>
giving the locations of the temporary marks<br/>
<br/>
so if any of you map curators or other academics<br/>
happen to be in reach of a copy of that baby<br/>
well you & thus we may already hold the keys to<br/>
unlocking eglysd<br/>
<br/>
<br/>
<br/>
<br/>
<br/>
 <br/>
<br/>
<br/>
<br/>
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