Factories. (Ch. 30. No. 2. 115 (viii) any premises in which the making, adaptation or repair of dresses, scenery or properties is carried on incidentally to the production, exhibition or presenta- tion by way of trade or for purposes of gain of cinemato- graph films or theatrical performances, not being a stage or dressing-room of a theatre in which only occasional adaptations or repairs are made; (ix) any premises in which the business of making or mending nets is carried on incidentally to the fishing industry ; (x) any premises in which mechanical power is used in connection with the making or repair of articles of metal or wood incidentally to any business carried on by way of trade or for purposes of gain; (xi) any premises in which the production of cinematograph films is carried on by way of trade for purposes of gain, so, however, that the employment at any such premises of theatrical performers, and of attendants on such theatrical performers shall not be deemed to be employment in a factory; (x11) any premises in which articles are made or prepared incidentally to the carrying on of building operations or works of engineering construction, not being premises in which such operations or works are being carried on; (xili) any premises used for the storage of gas in a gas holder having a storage capacity of not less than five thousand cubic feet; (xiv) any waterworks, pumping station, filtration plant, sewage works or sewage outfall; (xv) any premises in which any material is trans- formed or converted by way of trade or for purposes of gain. (2) Any line or siding (not being part of the Trinidad Government Railway or a municipal tramway) which is used in connection with and for the purposes of a factory, shall be deemed to be part of the factory; if any such line or siding is used in connection with more than one factory belonging to different occupiers, the line or siding shall be deemed to be a separate factory. 8 (2)