This all-night trip must be done sooner or later by all who enter Mexico by way of Laredo, for the St. Louis-Mexico City Limited with its sleeping-car behind and a few scattered Americans in first-class is the only one that covers this section. Residents of Vanegas, for example, who wish to travel south must be at the station at three in the morning.
Most of the night the train toiled painfully upward. As a man scorns to set out after a hearty meal with a lunch under his arm, so in the swelter of Texas I had felt it foolish to be lugging a bundle of heavy clothing. By midnight I began to credit myself with foresight. The windows were closed, yet the land of yesterday seemed far behind indeed. I wrapped my heavy coat about me. Toward four we crossed the Tropic of Cancer into the Torrid Zone, without a jolt, and I dug out my gray sweater and regretted I had abandoned the old blue one in an empty box-car. Twice I think I drowsed four minutes with head and elbow on my bundle, but except for two or three women who jack-knifed on the long bench no one found room to lie down during the long night.
From daylight on I stood in the vestibule and watched the drab landscape hurry steadily past. No mountains were in sight now because we were on top of them. Yet no one would have suspected from the appearance of the country that we were considerably more than a mile above sea-level. The flat land looked not greatly different from that of the day before. The cactus was higher; some of the "organ" variety, many of the "Spanish bayonet" species, lance-like stalks eight to ten feet high. The rest was bare ground with scattered mesquite bushes. Had I not known the altitude I might have attributed the slight light-headedness to a sleepless night.
Certainly a hundred ragged _cargadores_, hotel runners, and boys eager to carry my bundle attacked me during my escape from the station of San Luis Potosi at seven, and there were easily that many carriages waiting, without a dozen to take them. The writer of Mexico's Baedeker speaks of the city as well-to-do. Either it has vastly changed in a few years or he wrote it up by absent treatment. Hardly a town of India exceeds it in picturesque poverty. Such a surging of pauperous humanity, dirt, and uncomplaining misery I had never before seen in the Western Hemisphere. Plainly the name "republic" is no cure for man's ills. The chief center was the swarming market. Picture a dense mob of several thousand men and boys, gaunt, weather-beaten, their tight trousers collections of rents and patchwork in many colors, sandals of a soft piece of leather showing a foot cracked, blackened, tough as a hoof, as incrusted with filth as a dead foot picked up on a garbage heap, the toes always squirting with mud, the feet not merely never washed but the sandal never removed until it wears off and drops of its self. Above this a collarless shirt, blouse or short jacket, ragged, patched, of many faded colors, yet still showing half the body. Then a dull, uncomplaining, take-things-as-they-come face, unwashed, never shaved--the pure Indian grows a sort of dark down on his cheeks and the point of the chin, the half-breeds a slight beard--all topped by the enormous hat, never missing, though often full of holes, black with dirt, weather-beaten beyond expression.