_Hardships entailed on Capitalists by Progress._--As the old handicrafts have now been largely supplanted by machinery, and the hardship that continuing progress entails on laborers is greatly reduced, there is involved in progress a new burden which falls altogether on the capitalist employer. The machine itself is often a hopeless specialist. It can do one minute thing and that only, and when a new and better device appears for doing that one thing, the machine has to go, and not to some new employment, but to the junk heap. There is thus taking place a considerable waste of capital in consequence of mechanical and other progress. As there have come into use marine boilers made of steel and capable of standing a very high pressure, the low-pressure boilers of former days have become useless. With the advent of triple expansion cylinders, twin screws, and better and larger hulls, ships of the old type lost their value; and similar things are occurring in every line of production. A new mill is built and equipped with the best machinery known at the date of its building; but before a year has gone by all the machines in one department are so antiquated that it is best to throw them out. Indeed, a quick throwing away of instruments which have barely begun to do their work is often a secret of the success of an enterprising manager; but it entails a destruction of capital. What is easily to be seen is (1) that a single change of that kind makes an immediate draft on the general fund of available social capital; and (2) that this draft, as a rule, is soon repaid with increase. Machinery that is nearly new is thrown away when it appears that another kind soon will earn enough to make good the waste thus entailed, and the paradox is in the fact that the _entrepreneur_ who quickly destroys capital really saves it, while he who, by using the old appliances, tries to hold on to the capital loses it, since he sacrifices profits from which more would have come. Running his antiquated engine, the unenterprising man has to content himself with small returns and, in the meanwhile, sees his actual productive fund dwindling by the deterioration of the old equipment.