[=Injuries to mine by workmen and others.=] No workman, or other person, shall knowingly injure a water gauge, barometer, air-course, brattice, equipment, machinery, or live stock; obstruct or throw open an airway; handle or disturb any part of the machinery of the hoisting engine of a mine; open a door of a mine and neglect to close it; endanger the mine or those working therein; disobey an order given in pursuance of law, or do a wilful act whereby the lives and health of persons working therein, or the security of a mine, or the machinery connected therewith may be endangered. (Penalty, Sec. 976.) Sec. 961. [=Persons not permitted to ride on haulage trips.=] No person or persons except those in charge of trips, superintendents, mine-foremen, electricians, machinists and blacksmiths, when required by their duty, shall ride on haulage trips, except where by mutual agreement in writing, between the owner, lessee or agent, and the employes, a special trip of empty cars is run for the purpose of taking employes into and out of the mine, or empty cars are attached to loaded trips, which shall not be run at a speed exceeding eight miles per hour. No person except a trip rider shall ride on loaded car or cars, and he shall ride only the front or rear end of the trip. (Sec. 958.) [=Size of lamps for open lights.=] No person, except as hereinafter provided for, shall use in any coal mine, any oil lamp for the purpose of maintaining an open light, more than two and one-half inches in height, with spout not more than three inches long, with opening not more than three-eights inch in diameter; provided, however, that mine-foreman, electricians, machinists, motormen, trip-riders, drivers, and other persons whose duties require them to ride on moving trips, works in main air current, or travel frequently from place to place, may use lamps not exceeding three and one-half inches in height, with spout not more than four and one-half inches long, with opening not more than five-eights of an inch in diameter. (Sec. 943; Penalty, Sec. 976.) Sec. 962. [=Handling and storing of explosives.=] No workman shall have at any one time more than one twenty-five pound keg of blasting powder in the mine, nor more than three pounds of high explosives, and no person shall keep blasting powder or explosives dangerously near the electric wire or power cable in any part of the mine where electric wires are in use. No blasting powder, or other explosive, shall be stored in any mine except as above provided. [=Explosives kept in boxes.=] Every person who has powder or other explosives in a mine shall keep same in a wooden box, or boxes, securely locked, and said boxes shall be kept at least five feet from the track, and no two powder boxes shall be kept within twenty-five feet of each other, nor shall blasting powder and high explosives be kept in the same box, and in no case shall detonating caps be kept in a box with blasting powder or high explosives.