d in the mixture, and the
gravity in degrees Baume scale at a temperature sixty degrees
Fahrenheit of the mixture. Each label shall have printed thereon,
over the fac-simile signature of the person, firm or corporation
having compounded the oil, the following: "This package contains oil
for illuminating purposes in mines in the State of Ohio, and the
composition thereof as shown hereon is correct." Each person, firm
or corporation, manufacturing paraffine wax for illuminating
purposes in any mine, or mines, shall, before shipment thereof is
made, securely brand, stencil, or paste, upon the head of each
barrel, box, or case, containing small packages, the name and
address of the person, firm or corporation, manufacturing paraffine
wax therein contained, the name and address of the person, firm or
corporation, having purchased the same, and the date of shipment.
And each individual package contained within each barrel, box or
case, shall have plainly printed thereon the name of the product,
the name and address of the manufacturer thereof, together with the
melting point, fire test, and the percentage of oil and moisture of
the paraffine wax herein contained. But nothing herein contained
shall prohibit the manufacture, sale or use for illuminating
purposes in mines in this state, of paraffine wax with melting point
at from one hundred five to one hundred twenty-four degrees of heat
and minimum fire test not less than three hundred degrees
Fahrenheit, with not over four per cent, oil and moisture.

=Acetylene gas in mines.=

Sec. 974-1. It shall be lawful to use acetylene gas in lamps in
mines subject to the following conditions and restrictions: First,
no person or persons shall take into a mine a greater quantity of
calcium carbide than will be a reasonable supply for his own lamp
for one day's work. Second, no person shall deposit, or keep in his
possession in a mine any calcium carbide, or refuse from calcium
carbide, in anything except air-tight containers, and these
containers with their contents must be taken out of the mine at the
end of each day's work, or sooner, if possible. Third, no person or
persons, shall be allowed to use acetylene gas in lamps where there
are old or abandoned workings where large quantities of black damp
or other poisonous gases are liable to accumulate until such places
have been examined by a competent person and pronounced to be free
from foul or poisonous atmosphere.

=Other