If this be the scheme of the section, then I do not think the Commissioner really improves his position by claiming to rely upon par. (b) rather than on par. (a). If a lease expires in the same year as improvements are completed it does not seem appropriate to say that the instalment cannot be satisfactorily determined. It seems rather that, if the calculation required by s. 87 can be made at all, it must be on the basis that instalments are not required and that the whole estimated value of the improvements at the commencement of the year in which the lease expired should be included in the assessable income. To call this one amount a single instalment is an incorrect use of words; but such an application of par. (a) seems to me probably more correct than a resort to par. (b) would be, if the Commissioner be right that the year in which the lease was surrendered and the new lease granted was "the year in which the lease expires". The result however would not be very different. It would mean that the sum to be brought in would be such sum as would, if received on 1st July 1953, have accumulated at the rate prescribed to the sum of £7,756 on 31st December 1953. But this, of course, would be so only if 31st December 1953 was the date when the lease expired. The critical question is when, within the meaning of either pars. (a) or (b), "the lease expires" in the present case. It was contended for the taxpayers that the section, when it refers to the year when the lease expires, contemplates the year in which the term granted by the lease would come to an end, and not some earlier date when by surrender, forfeiture, merger, resumption by the Crown, or in some other way the tenancy is determined. It is an ordinary use of language to say that a lease expires when the term granted comes to an end by effluxion of time, and this it has been said is the natural meaning of the word "expires" in that context (Middleton's Trustees v. Middleton [1] ). But Mr. Nimmo brought to my notice the interesting passage in Plowden's report of Wrotesley v. Adams [2] , where it is said: "And the word (expiration) is properly breathing up, or yielding up his breath, (as the Lord Dyer said) and it is applied to man, or other things animate, and is used to express the death of a man. For when he yields up his breath, then he dies, for without his breath he cannot live. And although it is properly used in relation to things animate which breathe, yet by a similitude it is referred to things inanimate. As in our law we use the word (reverter) which is properly applied to things animate which move of themselves, but sometimes we use it in our law in relation to things inanimate, as we say, when tenant in tail dies the land shall revert to the donor. And so expiration, which is here used by similitude to things living, implies any end whatever. For as we signify by expiration the death of a man, and his last end, whatever way it happens, so the word expiration, being applied to an estate for years, may aptly enough signify the end of it, whatever way it be." [1] . The facts of that case, which was also reported by Dyer [2] , were unusual. On this aspect the decision establishes that if a lease be granted to commence on the expiry of an existing term and that term be cut short the new lease takes effect at once. The decision in the Rector of Chedington's Case [3] is to the same effect. Probably all that one can say is that the time of the expiry of a lease may mean the date on which the term granted will come to an end, or it may mean the date when the relationship of landlord and tenant under the lease is otherwise determined. It depends upon the context (cf. Hall v. Comfort [4] ). Here the Act proceeds on the basis that the period from the year in which the improvements have been completed to the year in which the lease expires can, at the time of such completion, be accurately predicted for the purpose of making the calculations required. Such a prediction could not be made if expiry might occur in any one of a variety of ways at some unpredictable date. But it could always be made in a case where the lease current at the time when the improvements were completed had an unexpired term of fixed duration. The Act perhaps does not really make provision for circumstances such as those of this case. It seems to assume that all leases will in fact run their full course. But if it is to be regarded as applicable at all in this case, then it seems to me that the year in which the lease expires must mean the year ended 30th June 1957 - for the term limited by the lease would have expired on 1st April 1957. On that basis the whole value of the improvements should not have been brought in to the year ended 30th June 1954; but the value to the lessor of the improvements as in 1957 should have been estimated and that amount brought in by instalments until and including the year ended 30th June 1957. On that basis it is said that the amount to be brought into the assessable income for the year ended 30th June 1954 would be £1,322, not £7,756. It is however unnecessary for me to find whether this sum be correct; for, as I have said, I consider that s. 87 (1) is rendered altogether inapplicable in this case by the combined effect of s. 87 (2) and s. 88 (3).