In the application of sections 68 to 73 of this Act (except so far as those sections relate to any head lamps required to be carried under section 68(2) thereof) to vehicles drawn by horses or other animals the following modifications shall apply:—
any vehicle engaged for the time being in carrying agricultural produce of an inflammable nature in the course of the internal operations of a farm shall be exempted from carrying lamps ;
without prejudice to paragraph (a) above, in the case of an agricultural implement or of any vehicle used for the time being by a person engaged in agriculture for the conveyance of his agricultural produce or articles required by him for use in agriculture—
only one lamp showing a light to the front need be carried, and that lamp shall be attached to the off or right hand side of the vehicle, and
subject to the provisions of section 76 of this Act, a lamp showing a red light to the rear need not be carried.
In this section " agriculture " includes the use of land as meadow land or pasture land, or orchard land or for market gardens or allotments, but does not include the use of land as woodlands, and " agricultural" shall be construed accordingly.