I completely forgot the url:
http://www.mcu.es/lab/archivos/mediterraneo/01cartografia/foto11.htm
Peter S.

--- In BoundaryPoint@y..., "ps1966nl" <smaardijk@y...> wrote:
> Grant wrote:
> "Cannon used to be named by the weight of the iron roundshot they
> fired, and these went up in 4-pound intervals. In sailing ships of
> the early nineteenth century, 24-pounders constituted much of the
> broadside, so it was a pretty common calibre of gun. This method of
> naming was used across Western Europe and the US - and since a
> Spanish pound ("libra") was 1.01 English pounds, the size of gun
must
> have been pretty much identical to the British version.
> Certainly in English usage it was acceptable to call such a gun "a
> 24" or "a long 24" (for the long-barrelled version), so I'd guess
> you're seeing the Spanish equivalent here.
> If memory serves these guns could throw a round shot a mile
(1.6km) -
> can't remember if this was including or excluding bouncing of the
> shot. Would this accord with the width of the boundary defined by
the
> treaty?"
>
> I don't know - I don't have a good enough map for that to judge.
But
> it does seem that the range of the cannon was only a starting point
> for the engineers to establish the boundary. Cf. this map from
1891,
> which neatly shows the neutral zone, too. The map can be enlarged
(a
> bit) by clicking on the magnifying glass icon.
>
> Peter S.