"Well, we can do our best, Ralph. I know father set a great store by that white pony. He was thinking of breaking him in for his own use." "I know it, and that is why I tried so hard to capture him. But I can't get the hang of the lasso," and Ralph shook his head, for he had tried to land the loop over the mustang's head at least a score of times. "You'll learn in time. It's more the knack of it than anything else. Come, let us hurry!" and Dan set off at a gallop. He was thinking altogether of the mustang, and never dreamed of the other odd adventure in store for him,--an adventure which was to make a soldier of him almost before he was aware. CHAPTER XVII. THE GRASS FIGHT, AND WHAT FOLLOWED. The victory at Concepcion, as was natural, greatly strengthened the cause of the Texans, and immediately afterward the number of volunteers in the army increased. Seeing this, Austin moved his command still closer, and settled into a regular siege of San Antonio. The scouts, under Colonel Bowie, surrounded the town, to give warning of the approach of any reinforcements for General Cos, who remained within, still barricading the streets and wondering how soon the revolutionists would attack him. In the meantime, a general meeting of citizens and political leaders was held at San Felipe, and at this convention, as it was termed, Austin was elected as a commissioner to seek aid in the United States. This left Austin's place in the army vacant, and General Edward Burleson, an old Indian fighter, was selected to fill the position. General Cos was boxed up in San Antonio with a force estimated at from twelve hundred to sixteen hundred men. Many of his soldiers belonged to mounted companies, and it became a problem, not only how to feed the men, but also how to feed so many animals. There were rations to hold out for some time, but little forage. To make the matter still more difficult for the Mexican commander, Bowie and others ordered all the grass in the immediate vicinity of San Antonio burnt. This caused one or two small fires among the huts on the outskirts of the town, and came near to starting a panic. At last General Cos felt that he must either have forage for his soldiers' horses, or else slaughter them, and he hired bodies of the Mexican farmers to go out, during the night, to gather such grass as could be gotten within a reasonable distance of the town. These bodies of men invariably went out under the protection of one or more companies of cavalry. The expeditions after forage brought on what was called the Grass Fight. Among Bowie's scouts was an old frontiersman called Deaf Smith, and one day when Smith was out he discovered a body of farmers and cavalry, about a hundred strong. The panniers of the horses and mules were stuffed with grass, but as the body was a long way off, Smith mistook them for some troops come to reinforce General Cos, and supposed the stuffed panniers to be filled with silver to pay off the Bexar garrison.