Mining Leases Act 1723

Lessee not beginning to work in a year, or afterwards not keeping 6 able men employed 150 days in a year, lease void;

and lessor may re-enter.

X. Provided always, That if any person or persons, who shall take, have, or claim, any right, title, estate, or interest, of or in any mine or mineral by virtue of or under any lease to be made in pursuance of this act, shall not begin effectually to work in such mine or mineral within one year next after the commencement of such lease, or shall after the said first year neglect to keep six able workmen therein employed for one hundred and fifty days in any one year, during the term of the said lease, for the effectual carrying on of the said work; then and in either of the said cases the lease so made shall be from thenceforth null and void both in law and equity; and it shall and may be lawful for the lessor or lessors, or such other person or persons, who shall be intitled to the rent reserved on such lease, to re-enter in and upon such demised premisses, and the same to have again, repossess, and enjoy, as in his or their former estate.