Section 25

A lease made for any consideration in respect whereof it is chargeable with ad valorem duty, and in further consideration either of a covenant by the lessee to make, or of his having previously made, any substantial improvement of or addition to the property demised to him, or of any covenant relating to the matter of the lease, shall not be charged with any duty in respect of such further consideration, except where such further consideration consists of a covenant which if it were contained in a separate deed would be chargeable with ad valorem duty.

An instrument whereby the rent reserved by any other instrument chargeable with duty and duly stamped as a lease is increased shall not be charged with duty otherwise than as a lease in consideration of the additional rent thereby made payable.

Direction as to duty upon transfer of stock