be an official who will discharge you, especially if you happen to cause a wreck.

Await signals before starting a trip and be sure you have the proper signal so as to avoid accidents to brakemen and others.

See that the motor light is burning brightly.

As you are in charge of the trip, do not allow anyone to ride on the trip except those whose business it is to do so.

TO BRAKEMEN AND TRIP RIDERS.

You should take many of the precautions that the driver takes. Couple your cars while they are at rest. It is bad practice to try to couple them "on the fly," as a small mistake in timing may cause you a serious injury. If on a curve couple cars from the outer side. of the curve, unless there should not be sufficient clearance.

Avoid getting between cars. Watch approaching cars while coupling a trip on a parting, so as to avoid getting caught if the trip should be bumped.

Be sure couplings are made secure to avoid having a trip break. If hauling on a slope, be sure that the drag and other safety devices, such as safety chains, are in place.

Avoid riding between cars; the rear of the trip is the safest place. While riding on the motor keep your feet inside the frame, so that they will not get caught between the motor and a car, or the motor and the rib.

TO THE HOOKER-ON.

See that the rope, the hitchings, and the drag or other safety devices are in good order and are properly attached before a trip is allowed to start.

When men are being hauled be careful always to give the signal agreed upon.

Enforce all the rules of the mine concerning hoisting persons on a slope.

TO THE TOPMAN.

See that the rules of the mine with respect to lowering persons on slopes are complied with.

Close the safety block as soon as the trip has reached the top of the slope.

Inspect the rope, chains, and couplings daily to make sure that they are in good condition.

TO THE TRACKMEN.

Investigate all notices of poor track condition and make necessary repairs as promptly as possible. Delay on your part may be the cause of some bad accident.

TO THE FIRE BOSS.

Inspect roads and track daily and report any falls or obstructions promptly, so that they may be cleared away before hauling starts.

TO THE FOREMAN.

As you are in charge of all inside men, you should see that they are properly instructed on the precautions they should take in regard to safety. Proper danger, warning, or guide signals should be placed at all crossings and other important points.

Have the sides of the roadways and also the space between the rails kept clear.

See that the mine rules and State regulations concerning the hauling of men are obeyed.

Enforce rigidly the rules that state how men shall and shall not travel underground.

Keep the manway in good condition, so that it will be safe and convenient for men to travel.

Arrange to have proper shelter holes or the proper clearance space between cars and rib, along all haulage roads.

Arrange to have trolley wires properly guarded at places where men must travel.

Install proper signaling apparatus and keep it in working order. Have a drag or a proper safety device on the rear of every trip hauled up a slope.

Arrange to have the road drained and free from refuse.

Have the track inspected frequently, so that any bad places can be repaired in sufficient time to avoid an accident.

Provide a light to be firmly attached to the rear end of each running trip of cars.

LIST OF MINERS' CIRCULARS.

The following miners' circulars are available for free distribution until the edition is exhausted. Only one free copy can be sent to one person, and requests for all circulars can not be filled. Requests for copies should be addressed to the Director of the Bureau of Mines, Washington, D. C.:

MINERS' CIRCULAR 4. The use and care of mine-rescue breathing apparatus, by J. W. Paul. 1911. 24 pp., 5 figs.

MINERS' CIRCULAR 5. Electrical accidents in mines, their causes and prevention, by H. H. Clark, W. D. Roberts, L. C. Ilsley, and H. F. Randolph. 1911. 10 pp. 3 pls.

MINERS' CIRCULAR 7. Use and misuse of explosives in coal mining, by J. J. Rutledge, with a preface by J. A. Holmes. 1913. 52 pp., 8 figs.

MINERS' CIRCULAR 8. First-aid instructions for miners, by M. W. Glasgow, W. A. Raudenbush, and C. O. Roberts. 1913. 67 pp., 51 figs.

MINERS' CIRCULAR 10. Mine fires and how to fight them, by J. W. Paul. 1912.

14 pp.

MINERS' CIRCULAR 12. The use and care of miners' safety lamps, by J. W. Paul. 1913. 16 pp., 4 figs.

MINERS' CIRCULAR 13. Safety in tunneling, by D. W. Brunton and J. A. Davis. 1913. 19 pp.

MINERS' CIRCULAR 14. Gases found in coal mines, by G. A. Burrell and F. M. Seibert. 1914. 23 pp.

MINERS' CIRCULAR 15. Rules for mine-rescue and first-aid field contests, by J. W. Paul. 1913. 12 pp.

MINERS' CIRCULAR 16. Hints on coal-mine ventilation, by J. J. Rutledge. 1914. 22 pp.

MINERS' CIRCULAR 17. Accidents from falls of rock or ore, by Edwin Higgins. 1914. 15 pp., 8 figs.

MINERS' CIRCULAR 19. The prevention of accidents from explosives in metal mining, by Edwin Higgins. 1914. 16 pp., 11 figs.

MINERS' CIRCULAR 21. What a miner can do to prevent explosions of gas and coal dust, by G. S. Rice. 1915. 24 pp.

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