APPENDIX I


 THE MELISH MAP, 1818

ADAMS AND ONfs labored over, and cited in the treaty, the "Map
of the United States with the contiguous British & Spanish Posses-
sions, Compiled from the latest & best Authorities by John Melish;
Engraved by J. Vallance & H. S. Tanner.... Improved to the 1st
of January 1818." This was apparently the seventh, eighth, ninth,
or tenth edition of a map well known at the time, the first having
been published in 1816. Slight alterations appeared in the por-
trayal of the southern states through the various editions, but none
up to 1819 related to the boundary delineation. Necessary re-
visions were made whenever a new hundred copies was issued.
Colonel Lawrence Martin, chief of the Division of Maps and in-
cumbent of the Chair of Geography at the Library of Congress,
has thus far identified twenty different issues, or editions, six
of them dated 1816, four 1818, two 1819, five 1820, two 1822, and
one 1823.'
 The map was printed on a scale of sixty miles to the inch, being
originally approximately fifty-six and a half by thirty-five inches
in size. The last seven editions were enlarged to include all of
Mexico. It was issued whole or cut into sections and mounted for
carrying. A book entitled A Geographical Description of the
United States (first and second editions, Philadelphia, 1816; third
edition, revised, 1818) was published to accompany it.
 A survey of libraries in the United States, Canada, England,
and France has revealed nine copies of the 1818 editions now
available. This is believed to be the first time any edition of the
map has been reproduced entire for publication. The copy here
reproduced is now with the treaty in the Division of State Depart-
ment Archives in the Natiopal Archives. No copy of the map was
officially signed or made a part of the treaty by the negotiators.
The map now with the treaty was acquired by the Department of
State in 1840. The fact that it bears no superimposed lines or
 SPreliminary statement regarding Colonel Martin's rewarh appear in his
annual reports of the Division of Maps for 1986-1988 (Library of Congres,
Report of the Lbrwari for the F eol Year [Washington, 1986-1988]: 19386
pp. 125-127; 1987, p. 121; 1988, p. 141).
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