Few incidents of the campaign in Mexico seem so mixed up and indefinite as that relative to the taking of Huamantla, and the death of that noble and chivalric officer, Capt. Walker. In glancing over the papers of Major Mammond, of Georgia, which he designates the "Secondary Combats of the Mexican War," we observe that he has given an account of the engagement at Huamantla, and the fall of Walker. We believe the Major's account, compiled as it is from "the documents," to be in the main correct, but lacking incidental pith, and slightly erroneous in the grand _denouement_, in which our gallant friend--whose manly countenance even now stares us in the face, as if in life he "yet lived"--yielded up the balance of power on earth. We have taken some pains, and a great deal of interest surely, in coming at the facts; and no time seems so proper as the present--several of the chivalric gentlemen of that day and occasion, being now around us--to give the story its veritable exhibition of true interest. Capt. S. H. Walker was a Marylander, a young man of the truest possible heroism and gallantry. He entered upon the campaign with all the ardor and enterprise of a soldier devoted to the best interests of his country. He commanded a company of mounted men, whose bravery was only equalled by his own, and whose discipline and hardiness has been unsurpassed, if equalled, by any troops of the world. We shall skip over the thousand and one incidents of the line of action in which Walker, Lewis, and their brave companions in arms did gallant service, to come at the sanguinary and truly thrilling _denouement_.