ABSTRACT
It is now well recognised that factory conditions exert a powerful influence on the efficiency of the worker. They act both directly and indirectly. The direct effect of good lighting and suitable heating can easily be recognised, but the indirect effect may be equally important. Bad factory conditions may cause a lowering of health and well-being, a slackness and depression of spirits, which react on the productivity of the worker. In dangerous and unhealthy industries, where dust and fumes are produced which are injurious to the workers, the Facfory Acts require that local or exhaust ventilation be introduced. In some industries, and especially in the heavier occupations, there is a distinct seasonal variation in the output.
