MY first business acquaintance with Lo occurred in the year 1847. A band of about one hundred Co manche warriors, led by a chief named J anamata, or the Red Buffalo, taking advantage Of the subdued and defenceless condition of the Mexicans, crossed the Rio Grande, about seventy miles below Old Reynosa, and commenced a series of depredations. Information was immediately given to the American officer commanding at that post, and the writer was detailed, with a force of fifty men, to drive off the invaders, with orders not to engage in hostilities, unless the Indians proved refrac tory and deaf to all other appeals.