16. No tenant shall receive into his house nor allow to harbour on his lands, any useless or disabled persons, not members of his own family, or any idle or disorderly or disreputable person or persons whatever, or any married persons (except himself), though relations, without the leave of the proprietor; and every tenant shall be bound to maintain all members of his family, who, from infirmity, age, or otherwise, may be incapable of supporting themselves, so as to prevent their becoming a burden on the Parochial Board. 17. Every tenant shall be bound to maintain good neighbourhood; to abstain from all encroachments on his neighbours, either by allowing his cattle improperly to stray on their grounds or otherwise, and to that end to keep his cattle properly tethered within the limits of his own grass, ley, or stubble ground, from the 1st day of April to the 1st day of November in each year; and to maintain in all respects a character and conduct becoming an industrious and Christian man, and to enforce such a line of conduct on all living in family with him. 18. Every tenant shall be bound to bring up and educate his children properly, according to his means and opportunities, by using every endeavour to allow of their attendance at schools where sound religious and secular knowledge may be acquired; and, by precept and example, otherwise training them up to be pious, industrious, and good members of society. 19. It is expressly declared, that all powers conferred on the proprietor by these conditions shall be capable of being effectually exercised and carried into effect by, and at the instance of, the duly appointed factor on the estate of Quendale, and by the sub-factors and ground officers under them. II. RULES FOR THE BETTER MANAGEMENT OF THE SUMBURGH ESTATE. Any tenant on the estate can apply for a copy of these regulations; and on his obtaining said copy, duly dated and signed by himself and the landlord, these rules shall form a binding agreement between himself and the landlord, and shall have all the force of a lease. Each holding shall be valued by the landlord, and the nature of the holding and value declared on the back of the copy of these rules, handed to the tenant thereof; and the rent shall not afterwards be raised to that tenant for the term of fifty years, except as herein provided. As, in time past, money has gradually but surely decreased in value, and land has gradually increased in value in the same or a greater proportion, it shall be in the option of the landlord, at the end of ten years from the signing of this agreement, to make such addition to the rent paid by the tenant as he shall see fit and reasonable, according to the times; but said addition shall, under no circumstances, exceed twenty per cent., or one-fifth of the rent formerly paid, and so on, at the end of every ten years.