(1)In addition to the moneys which under Part I. of the [1 & 2 Geo. 5. c. 55.] National Insurance Act, 1911 (in this Act referred to as the " principal Act "), are required to be contributed out of moneys provided by Parliament towards defraying the cost of any of the benefits conferred by Part I. of that Act or the expenses of administration of any of those benefits or otherwise for the purposes of that Act, there shall be contributed out of moneys provided by Parliament towards such costs expenses and purposes, such additional sums as Parliament may from time to time determine, and the provisions of the principal Act as to the manner in which the cost of benefits and the expenses of administration are to be defrayed shall be construed as applying only to the balance of such cost and expenses after such additional sums have been applied for the purposes for which they have been provided.
(2)Any additional sums so contributed for the purpose of medical benefit shall be applicable towards the payment of medical attendance and treatment of members of societies who are not insured persons mentioned in paragraph (e) of subsection (2) of section fifteen of the principal Act as amended by this Act in like manner and to the like extent as if such medical attendance and treatment were medical benefit.