...sons in that vicinity. On the 23d of July Captain Baylor, with about two hundred and fifty men, advanced up the Rio Grande, crossing to the west side of the river at San Tomas, and proceeding to La Mesilla . On the afternoon of the 25th Major Isaac Lynde, 7th U. S. Infantry, who was in command at Fort Fillmore, a post about four miles distant from Mesilla, proceeded against the rebels with about four ...