and rubber. shoes involves a considerable period of training and represents skilled labour. The manufacture of articles such as rubber heels, which needs little beyond the plant and labour for mixing and vulcanisation, is not subject to this limitation, and as the essential equipment is comparatively inexpensive, such works can be established without difficulty in any part of the world, A circumstance which tends to localise certain branches of the in- dustry and to increase the size of the economic unit, is the seasonal character of the market for certain classes of goods, for instance, hot-water bottles, football bladders and golf balls. The manufac- ture of such articles is generally confined to large works covering a range of products so as to facilitate internal labour transference. In certain cases as, for example, in the manufacture of perambu- lator tyres and dental rubber, the rubber factory forms a small department of a larger works. Wages in the indus- try. Practice in Canadian and United States Factories. 119. It is thus very difficult to attach any definite meanings to figures of the average wages in the rubber industry in different countries. The industry itself is not a unit. Where the rubber factory is, so to speak, incidental to a main trade of a locality or is only a branch of a larger factory, wages naturally tend to conform with those in the main industry. In certain sections of the industry wages run definitely higher than in others. Thus wages in a tyre factory generally exceed those in a waterproofing factory in the same country. Those in a boot and shoe factory differ from those in factories for tyres or waterproofed gar- ments. Thus differences between the average wages of different countries reflect differences in the character of the manufactures of different countries. Comparisons between average wages in different countries are therefore very misleading. ‘We have given in Appendix VI the information regarding ‘‘ money ’’ wages with which we have been supplied, but we -deprecate the institution therefrom of close comparisons between country and country. 120. It seems undoubted, however, that wages in the rubber industry in Canada and the United States rule higher than those in the United Kingdom, where also they are generally higher than in factories on the Continent of Europe. The general principles on which wages are earned in rubber factories in Canada and in the United States differ from those followed in factories in- Great Britain. - Payment at piece rates on output is far more general in Northern America than in England, and earnings depend to a larger extent on the effort of the individual and not even of the ** team *’ of which he may form a part. It is reported that many individual employees attain an exceptional speed ir operation. Due very largely to the vast output of standardized articles from large factories the value of output per employee in the United States