A consideration of related sections of the Act reinforces this conclusion. Sections 110-116 form Div. 8 of Pt. III of the Act, under the heading "Life Assurance Companies". These sections provide for the way in which the profits of a life company, ascertained in accordance with actuarial principles, are to be regarded for income tax purposes. The very nature of life insurance prevents the annual ascertainment of the profits of a life business by the simple process of setting against the total amount of receipts in any year all the outgoings of that year. In fire insurance, or any form of insurance business in which contracts are made for one year only, this method can be followed, but the determination of the profits of a life insurance business for any year involves an actuarial valuation for the ascertainment of the surplus, if any, in the insurance fund beyond the amount of the actuarially calculated liabilities of the fund at the commencement and at the close of the period. This special character of a life insurance business was recognized in Northern Assurance Co. v. Russell [1] . Sections 110-116 reflect this. Read in conjunction with other provisions of the Act, they provide a code for the assessment of tax payable by life companies. And they displace the distinction which, because of the decision in New York Life Co. v. Styles [2] exists in the United Kingdom between mutual societies and other life offices in relation to tax (see Colonial Mutual Life Assurance Society Ltd. v. Federal Commissioner of Taxation [3] ). Section 111 had forerunners in different forms to which Dr. Coppel has referred. But in my view the different forms of those enactments do not control the meaning of s. 111, which is to be construed in its present form and in its context in 1947. It operates negatively to exclude premium income as such from the computation. The other sections of the group indicate positively the way in which the alternative basis of computation, namely by actuarial valuation, is to be applied. The whole group of sections is concerned with life insurance business as ordinarily understood, that is, with insurance policies to which the ordinary processes of actuarial valuation can be applied by the use of an assumed rate of interest and a rate of mortality. In reply to Mr. Lush's argument that this was so, Mr. Aickin argued that s. 111 was not only independent of s. 110 historically, but also that the interpretation of s. 111 was not to be affected or controlled by s. 110. He pointed out that, in any valuation of the liabilities of an insurance company, annuity obligations, especially contracts for deferred annuities, would have to be included; and he said that since s. 110 did not refer expressly to annuity contracts they must be comprehended there under the words "policies in force". He then pointed to the different wording of s. 111: "policies of life assurance or considerations received in respect of annuities granted". Contracts for annuities take a great variety of forms; and, as is well-known, contracts for annuities form part of the business of life insurance companies. Many of these contracts are for immediate life annuities, and these admit of actuarial calculation on the basis of mortality experience. Annuity contracts are very commonly called policies. For example "an instrument securing the grant of an annuity upon a term dependent upon human life" is a "life policy" for the purposes of the Life Insurance Act 1945-1958 (s. 4). And in the forms in the first and second schedules to that Act annuities are shown as one category of policy. Moreover the word "premium" is there used for the consideration paid or payable for annuities. For example in form A in the first schedule "single premiums" and "other premiums" appear under the heading "consideration for annuities granted". It seems to me, therefore, that the words "consideration in respect of annuities granted" in s. 111 probably refer to the purchase price received for immediate annuities. These are properly described as "granted", and for them the word "consideration" may be more appropriate than "premium", which, however, is quite appropriate in the case of a deferred annuity, especially one being purchased by annual payments. But whether this be right or not, I think these verbal distinctions between s. 110 and s. 111 cannot be stretched to mean that the policies of life insurance to which the latter section relates are something different from the policies referred to in the former.