Ralph took the train sheet and familiarized himself with its every detail. Down its centre was printed the names of all the stations on the division and the distances between them. On either side of the main column were ruled smaller columns, each one of which represented a train. The number of each train was at the head of the appropriate column, and under it the names of the conductor and engineer and the number of loads and empties on the train. All trains on the division were arranged in three classes, and as Ralph knew had certain rights. Trains of the first class were passengers. The through freight and combination freight and passenger made up the second class. All other trains, such as local freights, work trains and construction trains, composed the third class. Ralph began his calculating on the basis of the invariable rule in force on all railroads, that trains running one way have the exclusive right over trains of their own and inferior classes running in the opposite direction. Ralph began his work by framing up the initial order: "Order number 29 To G. N. E.--all trains G. N. R. R. (Western Division) Dispatcher's office D. S. Special east engine No. 86 will run from Rockton to Dover, having right of track over all trains except No. 8 on the following schedule: Leave Rockton 3:12 P. M. There Ralph paused. "Stuck," insinuated his copy operator with a grin. "No, only thinking," declared Ralph. Here was where the figuring came in, along with the knowledge of the road, grades and the like, in which Ralph was by no means lacking, for he knew familiarly nearly every foot of the way out of Rockton. He studied and used up lots of gray matter and even chewed up a pencil or two. Ralph read his schedule carefully and handed it to the second trick operator. The latter knitted his brows for a moment and then slowly said: "For a beginner that's the best schedule I ever saw." "Thank you," bowed Ralph modestly. "It's a hummer, without a doubt. To prevent the lives of the Congressional Committee being placed in peril, though, I think you had better make another." "Think so?" questioned Ralph blankly. "You see," went on the operator solemnly, "you have only allowed seven minutes between Lisle and Hull, while the time card shows the distance to be six miles. Dan Lacey and his engine 86 are capable of great bursts of speed, but they can't fly. Then there's the through. She's an hour late from the south today. What are you going to do about her. Pass them on one track, I suppose?" "He's guying you, Fairbanks," spoke a gruff but pleased voice at Ralph's shoulder. "Lacey can make the spurt without a quiver, and as you probably noticed the late through is cancelled for transfer at Blakeville. You'll do."