may life — QuES. 23. State the requirements mine law in reference to air of the measurements, with...measurements with the number of persons employed in each district or split shall be sent the inspector before the...but seven inspection districts as follows First District, Luzerne County : the ventilating pressiu-e each... also Second District, Lackawanna, Suland Wayne, with six inspectors; Third District, Carbon County...inspector; Fourth District, Schuylkill County such data being preserved at the mine known with four |