Fahrenheit; the gravity of such mineral oil shall not be less than thirty-four and not more than thirty-six degrees Baume scale, measured by Tagliabue or other standard hydrometer at a temperature of sixty degrees Fahrenheit, and the gravity of the mixture shall not exceed twenty-five degrees Baume scale measured by Tagliabue or other standard hydrometer at a temperature of sixty degrees Fahrenheit.  Each person, firm or corporation compounding oil 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 or package, a label which shall have plainly printed, marked or written thereon, the name and address of the person, firm or corporation, having purchased same, the date of shipment, the percentage and the gravity in degrees Baume scale, at a temperature of sixty degrees Fahrenheit, of each of the component parts of animal, vegetable and mineral oil contained 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.