234 INDUSTRIAL REVOLUTION AND WAGES the flow of excess farm workers to the cities add to the seriousness of the unemployment problem? Will prices continue to decline as a result of lower labor and other costs of production? If so, can our industries maintain a proper margin of profits? Have salesmanship, marketing, advertising and dis- tribution costs as a whole so advanced as to absorb in large measure the increased profits from the gains in the productive efficiency of industry? By what practical methods are the wage-earners and consumers to be assured of a proper participation in the gains arising from increased productive efficiency in manufacturing, mining, and agriculture? Some of the problems which have thus been raised require no serious study. The question of a proper use of increased leisure and income by industrial workers is as old as industry itself. It has been raised as a warning against all past movements for decreasing hours of work or radical advances in incomes. It may be profitably passed by. Experience has demonstrated that humanity will use gains in leisure in an advantageous way, altho it may be guilty of lack of wisdom and serious derelictions at the outset. Our entire advance in education, culture, physical well-being, and democracy has been largely the result of gains in leisure, or emancipation from the service of time and effort to the purely physical needs of sub- sistence. No better demonstration of a wise use of leisure and income can be found than the remarkable growth in attendance at schools and colleges during recent years, the constantly growing participation in wholesome sports and recreation, and a corresponding gain during the same years in savings deposits and home-ownership. As to craftsmanship and artistic values, gains in purchasing power and leisure actually stimulate their cultivation. 11.