to obtain intelligence in regard to the missing officer. The two detachments took different directions. On the second day out, Lieutenant Porter met a party of Mexicans, about eighteen miles from General Taylor's camp, and one third of that distance north of the river, numbering near one hundred and fifty, one of whom snapped his piece at him. He instantly discharged. both barrels of his gun, and the Mexicans disappeared in the thicket. Their camp, with their horses and equipage, were captured. On their return, the Americans encountered another body of Mexicans, who had probably been joined by those previously seen. It was nearly nightfall, and raining heavily. They were instantly fired upon, but were unable to return it on account of their ammunition being damaged. Lieutenant Porter and one of his men were killed, and the remainder of the party returned to camp.
Two vessels bound to Matamoras with supplies for the army were warned off the mouth of the Rio Grande, on the 17th of April, by the blockading force. On receiving information of the fact, Ampudia remonstrated against the blockade. His letter to General Taylor was dated on the 22nd instant, and on the same day, a reply was made, in the usual sententious and impressive style of the American commander. He briefly reviewed his proceedings since he had left Corpus Christi with the army under his orders; pointing out the numerous evidences of his desire to avoid hostilities, and showing conclusively that the responsibility of producing them did not rest with him. When authoritatively informed by General Ampudia, that war would be the consequence of a refusal to abandon his position, he issued the order to the naval commanders for the enforcement of a blockade, which, he insisted, was not only
