First, Why do not men receive a greater wage than they do? can be answered only suggestively, since volumes may be and have been written on all the points involved. For skilled and unskilled labor alike, the differences in industrial efficiency go far toward regulating the wage, and have been grouped under six heads by General Frances A. Walker, whose volume on the Wages Question is a thoughtful and careful study of the problem from the beginning. These heads are--1. "Peculiarities of stock and breeding. 2. The meagreness or liberality of diet. 3. Habits voluntarily or involuntarily formed respecting cleanliness of the person, and purity of the air and water. 4. The general intelligence of the laborer. 5. Technical education and industrial environment. 6. Cheerfulness and hopefulness in labor, growing out of self-respect and social ambition and the laborer's interest in his work." With this in mind, we must accept the fact that the value of the laborer's services to the employer is the net result of two elements,--one positive, one negative; namely, work and waste. Under this head of waste come breakage, undue wear and tear of implements, destruction or injury of materials, the cost of supervision of idle or blundering men, and often the hindrance of many by the fault of one. Modern processes involve so much of this order of waste that often there is doubt if work is worth having or not, and the unskilled laborer is either rejected or receives only a boy's wage. The various schools of political economists differ widely as to the facts which have formulated themselves in what is known as the iron law of wages; this meaning that wages are said to tend increasingly to a minimum which will give but a bare living. For skilled labor the law may be regarded as elastic rather than iron. For unskilled, it is as certainly the tendency, which, if constantly repeated and so intensified, would end as law. Many standard economists regard it as already fixed; and writers like Lasalle, Proudhon, Bakunin, and Marx heap every denunciation upon it. Were the fact actually established, no words could be too strong or too bitter to define this new form of slavery. The standard of life and comfort affects the wages of labor, and there is constant effort to make the wage correspond to this standard. It is an unending and often bitter struggle, nowhere better summed up than by Thorold Rogers in his "Six Centuries of Work and Wages,"--a work upon which economists, however different their conclusions, rely alike for facts and figures. We must then admit in degree the tendency of wages to a minimum, especially those of unskilled labor, and accept it as one more motive for persistent effort to alter existing conditions and prevent any such culmination.