They were alluding to the railroad they had come to Mexico to build. The time-limit given in the contract would expire in ten days, and it would be a race to get the tracks through the town and down to the new docks in that time. Swan, whenever he thought of it, became restless, and now he sat up with a jerk, and his old hat slipped off his face. Even in that dim light Swan's ugliness was apparent. He measured over six feet and was loose-jointed and ungainly; he had big flat feet, and big bony, capable hands; and his features, which were big and bony too, seemed in proportion to nothing but his general ungainliness. Swan was an inventive Yankee with no background and no tradition. He could not even claim the proverbial Connecticut farm. His people had been dreary commercials in a middle-sized New Hampshire town, and he had worked his way through college to fit himself for a scientific career. His memory of his deceased parents was so colorless that it seemed to Swan as if they had never existed, and his contacts had been so dull, his outlook so dreary, that he had almost no conception of beauty. His plain college room, where, by the hour, he had worked out mathematical problems, and a grimy engine-room (which was the next stage of his advancement), where he had stood in a greasy black shirt, surrounded by an unceasing whir of machinery, and bossed a gang of men--these had been the things which had substituted for him romance and passion and life; and finally, when Pilchard, a college friend, had persuaded him to come down to Mexico and build a railroad, he had taken off his greasy black shirt and gone, principally because this was such a big undertaking, and it would undoubtedly in the end lead to something very much bigger. The company which was causing the railroad to be built had established large exporting-houses in San Francisco, which sent down certain articles of merchandise to Mexico, and the railroad was designed to transport this freight from one of the southwestern seaport towns to the city of Mexico. The undertaking included the erection of docks with swinging elevators to lift the freight from the vessels and deposit it in the cars, and as the pay was very large and Pilchard was an adventurous soul, he undertook the job when it was offered to him, and going to the manager's office, impressed him with his boldness and ability, and signed his name to the contracts without reading them through; then gayly, and feeling no uneasiness, he buttoned his coat over the neatly folded paper and went to see Swan.