and rendered insalubrious to all who dwell habitually in colder regions, or are unacclimated in the lower vallies and table lands of Mexico. His hopes, however, were not destined to be realized, for, upon consultation, it was found absolutely necessary to risk a general engagement or to abandon the town. The general engagement was considered injudicious in the present condition of his troops, so that no alternative remained but that of retreat. This was safely effected on the night of the 2d of May, 1812, notwithstanding the whole army of the insurgents was obliged to pass between the enemy's batteries. After quitting the town, the forces were ordered to disperse, so as to avoid forming any concentrated point of attack for the pursuing Spaniards, and to reunite as soon as possible at Izucar, which was held by Don Miguel Bravo. Calleja entered the abandoned town cautiously after the departure of the besieged, but the cruel revenge he took on the innocent inhabitants and harmless edifices, is indelibly imprinted in Mexican history as one of the darkest stains on the character of a soldier, whose memory deserves the execration of civilized men.
From Izucar, Morelos entered Tehuacan