e 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.

[=Fire must be kept from explosives.=] Whenever a workman is about
to open a box, package or keg containing powder or other explosives,
and while handling the same, he shall