In English law. A passage for the admission of air into a mine. To maliciously fill up, obstruct, or damage, with in-tent to destroy, obstruct, or render useless the air-way to any mine, is a felony punish-able by penal servitude or imprisonment at the discretion of the court. 24 & 25 Vict. c. OT. 128
Source: Black's Law Dictionary 2nd Ed (1910)
