Factories. (Ch. 30. No. 2. (b) modify, vary, extend, or limit any of the provisions of this Ordinance; (c) impose conditions on the use of, or require anything to be done to or in connection with the ways, works, machinery, or plant or any class or description of machine, machinery, or plant; (d) prohibit the employment of, or modify or limit the hours of employment of, all persons or any class of persons in connection with any manufacture, machinery, plant, process or description of manual labour; (e) prohibit, limit, er control the use of any material OF Process ; (f) require special supervision, control, training, or inspection of all persons or any class of persons in connection with any manufacture, machinery, plant, process, or description of manual labour; (g) require the provision of protective clothing, welfare facilities, or any other thing to promote the health and welfare of all persons or any class of persons employed; (hk) impose duties on owners or hirers, employed persons and other persons, as well as on occupiers: Provided that before any regulation or order is made embodying any of the provisions of paragraphs (c), (d), (e), (f), (g), or (hk) of this subsection, the Governor in Council shall satisfy himself that such provisions are necessary or, in the case of the provisions of paragraph (g) aforesaid, that they are desirable and reasonably practicable. (3) Regulations or orders so made may apply to all factories or other premises or places to which this Ordinance applies or to any class or description of factories or premises or places as aforesaid, and may provide for the exemption of any specified class or description of persons, or of factories or premises or places as aforesaid, either absolutely or subject to conditions. 34. (1) Where in a factory or other premises or place to which this Ordinance applies the Governor is satisfied that any manufacture, machinery, plant, process, or description of manual labour used is of such a nature as to cause risk of bodily injury to, or be detrimental to the 143 Power of Governor to make orders,