_p._ _Should a train for any cause be required to gradually reduce its speed between stations or at unusual points the engineman will sound one long and three short blasts of the whistle, as notice to the conductor to drop off a flagman with the proper signals to protect rear of train._ _q._ _In addition to the above protection a red fusee will be considered an extra precaution, and will be used under circumstances requiring the same. Should a train, for any cause, be required to reduce its speed between stations or at unusual points a red fusee must be lighted and placed upon the track as an additional protection for following trains, to insure a time limit between trains of not less than five minutes._ _r._ _If a train be obliged to back up, a flagman must be sent back in advance of the rear end of the train, and kept far enough in advance to insure absolute safety against a collision with any train that may be approaching._ _s._ _When the flagman goes back to protect the rear of his train, the head brakeman or baggageman must, in the case of passenger trains, and the next brakeman in the case of other trains, take his place on the train._ 8. When cars are pushed by an engine (except when shifting and making up trains in yards), a flagman must occupy a conspicuous position on the front of the leading car and signal the engineman in case of need. If such signal cannot be seen by the engineman or fireman, the engineman will bring the train to a stop immediately, and not proceed till signal is visible. 9. When switching is being done over highway or street railway crossings by yard or trainmen, a man must be stationed at that crossing to act as flagman. 10. Cars must not be moved over highway crossings or in front of passenger stations detached from engine, other than at terminals, where express authority has been given so to do by the division superintendent. Cars containing passengers must not be switched unless coupled to the engine and air-brake in use.