“It is contracted, agreed, and ended, betwixt George Miller, Esquire of Frankfield, in the county of Lanark, heritable proprietor of the piece of ground after let, on the one part, and John Carrick, architect in Glasgow, etc., on the other part, in manner following, that is to say—The said George Miller, acting in terms, and by virtue of an Act of Parliament passed in the 10th year of the reign of his Majesty King George the Third, intituled” so and so, (setting out the title of the Montgomery Act,) “has set, and does hereby, in consideration of the payment by the tenant of the tack duty after stipulated, and with and under the reservations, provisions, declarations, conditions, and prestations after mentioned, set and let in tack a certain piece of ground therein described, for the space of 99 years from and after the term of Martinmas, in the year 1850, providing and declaring, notwithstanding the endurance of this tack is fixed for the space of 99 years, that the said George Miller and his successors in the said piece of ground, shall have full power and liberty, at the expiry of fifty years from and after the term of Martinmas 1850, if they shall think proper, to break and put an end to this lease.”