and of course began to eat, unsuspectingly following the tempting bait through the gallery till they emerged from its farther end in the centre of the trap, where they contentedly fed till the food was all gone.  Then the fact of imprisonment first presented itself, and they vainly endeavored to escape through the interstices of the cage, never once guided by their instinct to return to liberty through the route by which they had entered.

Among the different kinds of birds captured in this way, mocking-birds, blue-birds, robins, meadow larks, quail, and plover were the most numerous.  They seemed to have more voracious appetites than other varieties, or else they were more unwary, and consequently more easily caught.  A change of station, however, put an end to my ornithological plans, and activities of other kinds prevented me from resuming them in after life.

There were quite a number of young officers at the post during the winter, and as our relations with the Mexican commandant at Piedras Negras were most amicable, we were often invited to dances at his house.  He and his hospitable wife and daughter drummed up the female portion of the elite of Piedras Negras and provided the house, which was the official as well as the personal residence of the commandant, while we—­the young officers—­furnished the music and such sweetmeats, candies, &c., for the baille as the country would afford.

We generally danced in a long hall on a hard dirt floor.  The girls sat on one side of the hall, chaperoned by their mothers or some old duennas, and the men on the other.  When the music struck up each man asked the lady whom his eyes had already selected to dance with him, and it was not etiquette for her to refuse—­no engagements being allowed before the music began.  When the dance, which was generally a long waltz, was over, he seated his partner, and then went to a little counter at the end of the room and bought his dulcinea a plate of the candies and sweetmeats provided.  Sometimes she accepted them, but most generally pointed to her duenna or chaperon behind, who held up her apron and caught the refreshments as they were slid into it from the plate.  The greatest decorum was maintained at these dances, primitively as they were conducted; and in a region so completely cut off from the world, their influence was undoubtedly beneficial to a considerable degree in softening the rough edges in a half-breed population.

The inhabitants of this frontier of Mexico were strongly marked with Indian characteristics, particularly with those of the Comanche type, and as the wild Indian blood predominated, few of the physical traits of the Spaniard remained among them, and outlawry was common.  The Spanish conquerors had left on the northern border only their graceful manners and their humility before the cross.  The sign of Christianity was prominently placed at all important points on roads or trails, and especially where any one had been killed;