Allan was, of course, acquainted, in a general way, with the duties of his new position, and he lost no time in further familiarizing himself with them. All of the operators along the line were under his control. He assigned them to their duties, promoted them or discharged them as occasion might arise, investigated any delinquency on their part, and held them accountable for the proper performance of their duties. In addition to this, he was required to see that empty freight cars were furnished the various agents along the line, as they needed them, and that loaded cars were taken up promptly and sent forward to their destinations. Every day, each agent wired in his car requirements, and it was the chief dispatcher’s business to see that these requirements were filled as speedily as possible. He was also expected to see that the dispatchers understood their duties, and to unravel any knotty point which any of them might not understand. Further than that, the clerical duties of the position were very heavy. He must make daily reports of the amount of freight handled; and if any freight crew was kept on the road more than sixteen hours, a special report must be prepared for the Interstate Commerce Commission, giving the facts in the case, and explaining why the crew had been kept out so long; for it is unlawful to keep any crew on duty for more than that length of time. A wise provision, for before this law was enacted, in busy seasons, railroads sometimes kept their crews on duty for twenty-four, thirty-six and even forty-eight hours at a stretch—an abuse which inevitably resulted in accidents from the men going to sleep while on duty, or being so exhausted by the long hours as to grow careless and forgetful of orders. These were the duties when everything was moving in regular order. At other times, the supreme duty of every one connected with the office was to get them back to regular order. For a great railroad system is like a complicated machine—no part can run smoothly unless all are running smoothly, and the throwing of the smallest cog out of gear cripples the entire mechanism. Although the train master was the “trouble man,”—in other words, the man whose especial duty it was to superintend the clearing away of wrecks, and the straightening out of traffic—whenever anything happened to interfere with it, all other work became subordinate to that of restoring traffic to its normal condition. * * * * *