Proceedings of the Senate and Documents Relative to Texas, from which the Injunction of Secrecy Has Been Removed Page: 55 of 119
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55 [ 341 3
MESSAGE FROM THE PRESIDENT OF THE UNITED STATES.
APRIL 29, 1844.
Read, referred to the Committee on Foreign Relations, and ordered to be printed in confidence for
the use of the Senate.
To the Senate of the United States
In compliance with the resolution of the Senate of the 22d instant, requesting
the President to communicate to that body any communication,
papers, or maps, in possession of this Government, specifying the southern,
southwestern, and western boundaries of Texas, I transmit a map of Texas
and the-countries- adjacent, compiled in the bureau of Topographical Engineers,
under the direction of Colonel J. J. Abert, by Lieutenant W. H.
Emory, of that corps, and also a memoir upon the subject, by the same
WASHINGTON, dpril 26, 1844.
MEMOIR TO ACCOMPANY THE MAP OF TEXAS,
The map embraces Texas, with a sketch of the adjacent countries. If
time had allowed, these sketches and the topography of the map would
have been more fully elaborated.
The projection used is that of the French "Depot de la Guerre."
The great northern outline of the map is furnished by the explorations
of Lieutenant Fremont, reaching from the South pass of the Rocky mountains,
along the line of the Platte, and thence down the Missouri, to St.
The next well-determined line going south is the route of Lieutenant
Colonel S. H. Long, from the base of the Rocky mountains, nearly sbuth,
to the headwaters of the Canadian river, thence along the banks of that
river to its confluence with the Arkansas.
The first-mentioned of these lines was projected in 1842, under the orders
of the Secretary of War; the last was projected in 1S18-'19, under the orders
of the honorable John C. Calhoun, then Secretary of War. Both are
checked by a great variety of well-selected and well-made astronomical
observations. They form the base of all accurate geography of the vast
region west of the States and south of the Missouri.
The next line coming south, to which any degree of importance is attached
for accuracy, is the survey of the road from Fort Osage, near Independence,
in Missouri, to Santa Fe, in New Mexico. This survey was
made in 1825-'26, under an act of Congress, by three commissioners and
one surveyor. It presents details and facts full of interest; but, unfortunately,
therenras an absence of correct astronomical observations, so- that
this line is stretcied over the vast expanse of the Western world, somewhat
at random. This deficiency is in some measure supplied by Humboldt,
who gives the astronomical position of Santa Fe, from the observations
of Rivera and Laford, by which the latitude was fixed at 36 12'
The longitude is by no means so satisfactorily determined, as -the direct
measurement from Fort Osage, (near Independence, Missouri,) to Santa
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United States. Congress. Senate. Proceedings of the Senate and Documents Relative to Texas, from which the Injunction of Secrecy Has Been Removed, book, 1844; [Washington]. (texashistory.unt.edu/ark:/67531/metapth2363/m1/55/: accessed July 20, 2017), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .