10. An Engineman is never to leave an Engine in Steam, without shutting the Regulator, putting the Engine out of gear, and fixing down the Tender Break. 11. No Engine is allowed to =propel= a Train of Carriages or Waggons, but must in all cases draw it, except when assisting up inclined planes, or when required to start a train from a Station, or in case of an Engine being disabled on the road, when the succeeding Engine may propel the train =slowly= (approaching it with great caution) as far as the next shunt or turn-out, at which place the propelling Engine shall take the lead. 12. No Engine is to run on the Main Line =Tender foremost=, unless by orders from the Locomotive Superintendent, or from unavoidable necessity. 13. Every Engineman on going out is to take his =Time Table= with him, and regulate by it the speed of his Engine, whether attached to a Train or not; and when not attached to a Train, he is on no account to stop at second-class Stations unless specially ordered, or there is a signal for him to do so. 14. Enginemen are not allowed (except in case of accident or sudden illness) to change their Engines on the Journey, nor to leave their respective Stations, without the permission of their Superintendent. 15. When the Road is obscured by steam or smoke (owing to a burst tube, or any other cause), no approaching Engine is allowed to =pass through the steam=, until the Engineman shall have ascertained that the road is clear; and if any Engineman perceive a Train stopping, from accident or other cause, on the road, he is immediately to =slacken his speed=, so that he may pass such Train slowly, and stop altogether if necessary, in order to ascertain the cause of the stoppage, and report it at the next Station. 16. Where there is an accident on the opposite Line to that on which he is moving, he is to stop all the Trains between the spot and the next Station, and =caution= the respective Enginemen, and further he is to render every assistance in his power in all cases of difficulty. 17. In case of accident to his Engine or Tender (when alone) he is to send back notice by his Fireman to the nearest Policeman on duty: but if the Policeman is too distant, the Fireman is to remain stationary not less than =600= yards in rear of his Train (until recalled), showing his Red Signal until he has rejoined his Engine. (See Rule 17, page 182.) 18. Enginemen are strictly prohibited from throwing out of their Tender any small =coke= or dust, except into the pits made for that purpose at first-class Stations. 19. Enginemen with Pilot or Assistant Engines must be prepared (while on duty) to start immediately on receiving instructions from the Locomotive Foreman or the Station Master.