The provisions contained in the Convention set out in the Schedule to this Order shall have full force and effect, so far as the same relate to England, Wales and Scotland and provide by way of agreement with the Government of France and with the Government of the Netherlands for reciprocity in any matters specified in either subsection (1) of section 64 of the National Insurance Act, 1946, or subsection (1) of section 85 of the National Insurance (Industrial Injuries) Act, 1946 (which subsections relate to reciprocal agreements with other governments), and the National Insurance Acts, 1946 to 1949, shall have effect subject to such modifications as may be required therein for the purpose of giving effect to any such provisions.