60Provision of barometers and other measuring instruments
(1)At every mine of coal or fireclay and at every mine other than of coal or fireclay, being either a safety-lamp mine or a mine (other than a safety-lamp mine) containing any waste to which section fifty-six of this Act applies, there shall be provided in a conspicuous place and in such a position as to be easily seen and read by the persons employed at the mine a barometer which shall, in such cases as may be prescribed, be of the prescribed kind.
(2)Provision may be made by regulations for requiring—
(a)the provision at any such mine as aforesaid of a barometer of a prescribed kind in addition to that required by the foregoing subsection to be provided thereat;
(b)the provision at the prescribed places in mines of the prescribed instruments for measuring the temperature or humidity, or temperature and humidity, of the atmosphere.
(3)Every instrument provided at a mine in pursuance of, or of regulations having effect by virtue of, the foregoing provisions of this section shall be properly maintained, and regulations may require that any such instrument shall be read by such persons at such times as may be prescribed and that the readings shall be entered by those persons in a book to be provided for that purpose by the owner of the mine.