It is necessary to consider these two objections separately. One proclamation sets up both Boards. It is a proclamation establishing a large number of Wages Boards at one time. They are identified by the trades for which they are respectively set up and these are enumerated in a long list under the operative words of the proclamation. The operative words state that the Governor in Council does by the proclamation "establish Wages Boards in respect of the following trades or groups of trades." As amended the subject of the Ironmongers' Wages Board is given as "Sellers of (a) Ironmongery and/or Ship Chandlery, (b) Crockery and/or Glassware, (c) Jewellery, Silverware, and/or Electroplate Goods, (d) Fancy Goods and/or Toys, (e) Books, Stationery, Music, and/or Musical Instruments, (f) Sporting Goods, (g) Rubber Goods and/or Leather, (h) Paints, Oils, Varnishes and/or Wallpapers, (i) Coachbuilders' Hardware, (j) Motor Accessories." The application of the definition is limited to sellers of such goods within a 7-mile radius of the General Post-office at Hobart or of the Post-office at Launceston. Common experience and a mere inspection of this list of goods will suffice to make it clear that a single business would be very exceptional indeed if it covered the selling of all the items. Doubtless it is a list of classes of articles which are sold as a matter of practice in a number of distinct businesses. An examination of the list did, however, suggest that the separate items it contains, though no trader sells them all in the same business, are yet the subject of a variety of combinations, one or more with another or others, to form the stock in trade of different shops or businesses the character of which varies indefinitely. The contention of the appellant company is that in adopting such a description of the trade for which the Ironmongers' Wages Board is set up the proclamation deserts any classification of trades which could correspond with practical affairs. It is therefore not a wages board in respect of a trade. Clearly enough this would be so if the word "trade" bore its ordinary meaning when used in relation to an employer's business and if it had not been defined to include a group of trades. But the definition not only includes a group of trades; it does so after extending the natural meaning of the word "trade" so as to cover not only any industry, business or work carried on or engaged in by an employer but also any function, process, undertaking, occupation or calling performed, carried on or engaged in by an employer. It is apparent that upon any literal application of this definition it must cover a very wide field of operations carried on by employers and include many possible combinations and subdivisions of activities within that field.