A curious picture of military _un_discipline--of egregious cowardice on the one hand, and fortunate audacity on the other. It is evident that the Doniphan mode of carrying on the war--consulting the men's pleasure, with officers drunk before the enemy, and privates giving the word of command--however successful it may prove against the wretched Mexicans, or in mountain and guerilla warfare, would never answer in the open field against a regular and skilfully commanded army. The question, then, follows,--How far could these staunch and gallant American riflemen be trained to the strict discipline and military exercises and manoeuvres essential to the efficiency of large bodies of troops, without impairing the very qualities, the feelings of independent action and self-reliance, which render them so valuable as irregular warriors? This inquiry, however, is not worth pursuing; for we suppose there is little chance of Uncle Sam meddling in European quarrels, and sincerely trust he will so curb his annexing mania as to avoid all risk of European armaments encountering him in his own hemisphere. Touching these Missourian volunteers, however, Mr Parkman's account of their appearance, and of his interview with them, is most graphic and characteristic. One forenoon he and his companion, Mr Shaw, turned aside to the river bank, half-a-mile from the trail, to get water and rest. They put up a kind of awning, and whilst seated under it upon their buffalo robes, and smoking, they saw a dark body of horsemen approaching. "'We are going to catch it now,' said Shaw: 'look at those fellows; there'll be no peace for us here.' And, in good truth, about half the volunteers had straggled away from the line of march, and were riding over the meadow towards us. "'How are you?' said the first who came up, alighting from his horse, and throwing himself upon the ground. The rest followed close, and a score of them soon gathered about us, some lying at full length, and some sitting on horseback. They all belonged to a company raised in St Louis. There were some ruffian faces among them, and some haggard with debauchery; but, on the whole, they were extremely good-looking men, superior beyond measure to the ordinary rank and file of an army. Except that they were booted to the knees, they wore their belts and military trappings over the ordinary dress of citizens. Besides their swords and holster pistols, they carried, slung from their saddles, the excellent Springfield carbines, loaded at the breech. They inquired the character of our party, and were anxious to know the prospect of killing buffalo, and the chance that their horses would stand the journey to Santa Fé. All this was well enough, but a moment after a worse visitation came upon us.