Railway companies were among the first, even if they were not actually the first, of the great employers of labour to resort to the expedient of engaging women and girls as substitutes for men in order that a larger number of the latter might be released for service with the Colours. Not only, also, were they pioneers in this direction but the number they eventually took on assumed exceptionally large proportions, while the experiences they thus had occasion to gain in comparing the respective merits of masculine and feminine labour in a wide range of railway activities offer many points of public interest.