... mail from Mesilla to El Paso, Texas, on horseback, once a week, and has already commenced the service. Upon the rumor of the Federal advance from New Mexico, a general stampede was begun from Mesilla . Referring to the flight, the Times says: Families were hastily shipped off to Mexico; valuables were secretly buried, and good-byes and partings, and tears, and God knows what anguish, mixe...