_Nature of the Incidental Evils to be Dreaded._--The problem we have to face is a danger that labor may be displaced either (1) from the particular point within a productive establishment at which it is now working, or (2) from the productive establishment as a whole, or (3) from a subgroup, or (4) from the general group of which the subgroup is a part. Out of industrial society in its entirety it cannot thus be forced. There is a case in which the men whose crafts are supplanted by machines may all stay where they are and operate the machines; but that involves forcing other men to change their occupations. There are more cases in which these men may stay in the mill or shop that employs them, but not in the same department of it. There are still more cases in which they may stay in their original subgroups, and in a majority of cases they may stay in their general groups. In every instance there are places for them in the working society. _Local Expulsions of Labor._--When a single employer who is one of many competitors in an industry adopts an important labor-saving device, it may be possible for him to keep all his men employed and to let the improvement show itself wholly as a means of increasing the output. He may secure a machine which will do what twenty men formerly did. If it were possible to cut the uppers of a dozen shoes by the quick stroke of a single die, the machine that carried this armature would do the work of perhaps twelve knives handled by that number of skillful workmen. If the original number of men were retained in the cutting department, and if each of them were furnished with the new appliance, it would mean that twelve times as many uppers would be cut as were cut before the change was made. There would, of course, be no use in trying to do so much cutting of uppers for shoes, without doing twelve times as much sewing, welting, making soles and heels, etc., and to secure all this at once would require a twelve-fold enlargement of the manufacturer's plant. This is too much to secure at once. The manufacturer might perhaps double the output of his mill and nearly double the number of his employees, but that would require only two of the twelve cutters he formerly had. The new workers would be in parts of the mill other than the one where the great saving of labor was effected. Ten men would be removed from the cutting department, and the two left there would cut, by the aid of the new machines, twice as many uppers as the whole number cut before, and that would require the furnishing of a double number of all other parts of the shoes and a double working force to make them. The ten men liberated from the cutting department would be available for this purpose, and new ones would be brought in and set sewing, pegging, lasting, welting, etc. Within a single establishment, therefore, a radical saving of labor at one point usually involves some shifting of labor