and there prepare all their buffalo robes for trade.  These robes are heavy, and, to the Indian, very difficult of transportation.  Nothing but necessity induces them to travel any great distance with such inconvenient baggage.  A post, therefore, established upon the head waters of the Arkansas, must infallibly secure an uncontested preference over that of the Mexicans; even at their prices and rates of barter.  Then let the dragoons occasionally move about among these people in large parties, impressing them with the proper estimate of our power to protect and to punish, and at once we have complete and assured security for all citizens whose enterprise may lead them beyond the border, and an end to the outrages and depredations which now dog the footsteps of the traveller, in the prairies, and arrest and depress the most advantageous commerce.  Such a post need not be stronger than fifty men; twenty-five to be employed as hunters, to supply the garrison, and the residue as a defense against any hostility.  Situated here upon the good lands of the Arkansas, in the midst of abundance of timber, while it might be kept up at a most inconsiderable expense, such an establishment within ninety miles of Santa Fe or Taos would be more than justified by the other and more important advantages before alluded to, leaving the protection of the traders with the Indian tribes entirely out of the question.

“This great trade, carried on by caravans to Santa Fe, annually loads one hundred wagons with merchandise, which is bartered in the northern provinces or Mexico for cash and for beaver furs.  The numerous articles excluded as contraband, and the exorbitant duties laid upon all those that are admitted by the Mexican government, present so many obstacles to commerce, that I am well persuaded, that if a post, such as is here suggested, should be established on the Arkansas, it would become the place of deposit, not only for the present trade, but for one infinitely more extended.  Here the Mexicans might purchase their supplies, and might well afford to sell them at prices which would silence all competition from any other quarter.

“These two trades, with the Mexicans and the Indians, centring at this post, would give rise to a large village of traders and laborers, and would undoubtedly be hailed, by all that section of country, as a permanent and invaluable advantage.  A few pack-horses would carry all the clothing and ammunition necessary for the post during the first year, and two light field-pieces would be all the artillery required for its defense.  Afterwards, all the horses required for the use of the establishment might be purchased from the Mexicans at the low price of ten dollars each; and, at the same time, whatever animals might be needed to supply the losses among the dragoons traversing the neighborhood, could be readily procured.  The Upper Missouri Indians can furnish horses, at very cheap rates, to any number of the same troops who might be detailed for the defense of the northern frontier; and, in other respects, a very limited outlay of money would suffice to maintain a post in that section of the country.