...slope or drift, shall provide and maintain within six reqaired. months after the passage of this act, for every such mine, an amount of ventilation of not less than one hundred cubic feet per minute per person employed in such mine, which shall be circulated to the face of each and every...

...shaft, slope or drift, shall provide and maintain, within six months after the passage o1 this act, for every such mine, an amount of ventilation of not less than one hundred cubic feet per minute per person employed in such mine, which shall be circulated to the face of each and every...

...obtained by contract upon reasonable terms. SEC. 298. The owner or agent of every coal mine, whether shaft, slope, or drift, shall provide and maintain...such mine, an amount of ventilation of not less than 100 cubic feet, per minute, per person employed in such mine, which shall be circulated and distributed...

...[VENTILATION — SAFETY-LAMP.] The owner agent or operator, of every coal mine, whether operated by shaft slope or drift, shall provide and maintain for every such mine a sufficient amount of ventilation, to be determined by the inspector at the rate of one hundred cubic...

...provisions of section eight. SEC. 10. The owner or agent of every coal mine, whether it be operated by shaft, slope, or drift, shall provide and maintain...employed in such mine, and not less than five hundred cubic feet of air per minute for each mule or horse employed in the same, which shall be distributed...

...as to avoid the leakage of air. I would, therefore, recommend that the operator of every coal mine shall provide and maintain for every such mine an...ventilation of not less than one hundred cubic feet per minute for each person employed in such mine; and that all mines governed by the provisions of...

...approved June 18, 1883]. SEC. 4. The owner, agent or operator of every coal mine, whether operated by shaft, slope or drift shall provide and maintain for every such mine a sufficient amount of ventilation, to be determined by ihe inspector, at the rate of one hundred cubic...

...or hoisted by the machinery at any one time. SEC. 4. The owner or agent of every coal mine whether shaft, slope or drift, shall provide and maintain...such mine an amount of ventilation of not less than 100 cubic feet per minute per person employed in such mine, which shall be circulated and distributed...

...coal mine in this territory, whether shaft, slope, drift or tunnel, shall provide and maintain for such mine an amount of ventilation of not less than one hundred cubic feet per minute per person employed in such coal mine, and as much more as the inspector may direct, which...

...approved June 18, 1883.] SEC. 4. The owner, agent or operator of every coal mine, whether operated by shaft, slope or drift, shall provide and maintain for every such mine a sufficient amount of ventilation, to be determined by the inspector, at the rate of one hundred cubic...