11. In approaching a station where a passenger train is due or past due, and where the view is not clear, trains must be under perfect control, so that they may be stopped, if necessary, before reaching station. Trains on the double track must not, under any circumstances, pull into a station at which a passenger train in the opposite direction is standing or into which it is pulling to receive or discharge passengers, until such train has started up and the rear coach thereof has passed the end of the station platform nearest the approaching train, excepting where tracks are divided by fences. When two trains are nearing a station from opposite directions at the same time and only one of them is scheduled to stop, the train making the stop must reduce speed to let the other through the station before it arrives. When two trains going in opposite directions arrive at a station and both are scheduled to stop, the inferior train will not pull up to platform until superior train has departed. At stations on single track, all trains will reduce to a speed of four miles per hour in passing a point where a passenger train is receiving or discharging passengers, and pass such trains with the engine bell ringing constantly. 12. Passengers will not be allowed to ride on freight, extra, or work extra, except upon such regular freight trains as may be designated in the division time-tables. Freight trains that carry passengers will be particular to have the caboose stop at the depot platform to receive and discharge them. Before the arrival of train at any station where they stop, the conductor will distinctly call out the name of station. This rule applies to employees of the company not actually on duty, as well as to other persons. It is, however, understood that persons accompanying live stock or perishable freight shall be allowed to ride on the same trains therewith, for the purpose of taking care of the same, upon the presentation of proper transportation. 12a. Conductors must show their orders to rear brakeman or flagman, and the engineman to the fireman, and (in case of a freight train) to the head brakeman, who are required to read them. The copy for the engineman must be delivered to him personally by the conductor and the engineman must read it aloud to the conductor before proceeding. 13. Dispatchers must not authorize operators to issue caution card to any train or engine to enter a block occupied by a passenger train, except in case of accident.