Paragraph 15 Power to make mining communication where continuous working is prevented.

If the working of any such mines or minerals as aforesaid lying under the reservoirs or buildings of the undertakers or any of their pipes or other conduits or underground works shown on the map referred to in section 12 of this Schedule or lying within the abovementioned distance therefrom mentioned in section 13 of this Schedule, be prevented as aforesaid by reason of apprehended injury thereto, the respective owners, lessees and occupiers of the mines or minerals may cut and make such and so many airways, headways, gateways or water levels through the mines, measures or strata the working whereof is so prevented as may be requisite to enable them to ventilate, drain and work any mines or minerals on each or either side thereof, but no such airway, headway, gateway, or water level shall be of greater dimensions or sections than the prescribed dimensions or sections, or, if no dimensions are prescribed eight feet wide and eight feet high, nor be cut or made upon any part of the said property or works of the undertakers so as to cause injury thereto.