A familiar illustration is found in the manufacture of steel. The so-called Bessemer process, introduced some thirty years ago, reduced the actual labor of making steel from iron by more than one-half. Improved furnaces and greatly enlarged operations have reduced still further the labor involved, until now steel often takes the place of iron, and the value of all such products is greatly diminished. This is easily illustrated by comparison of prices during a series of years, as shown in chart No. 14. That this reduction in price is not the result of poorly paid labor, but of better returns for labor expended, is evident to any one investigating the tendency of wages or of living among wage-earners, or of the general improvement in welfare of communities where these labor-saving methods are applied. Any hardship connected with these diminished values falls chiefly upon the laborers who fail to adjust their work to the improved method. But even they gain for the diminished value of their product a larger return on the whole through exchanges than the higher values had brought them before.
Chart IV. Comparison of the numbers of live stock with increases in population and mileage of railroad, 1860-1898.
_Numbers of live stock compared with increase of population and mileage of railroad, 1860 to 1898, in the United States_
_Explanation._--This chart exhibits to the eyes a comparative increase of (1) population, (2) sheep, (3) hogs, (4) railroad mileage, (5) beef cattle, (6) cows, (7) horses, (8) mules. The figures followed in making this chart are taken from the best estimates available, chiefly from the reports of the United States Department of Agriculture. It shows that railroad mileage has increased faster than the population, with some slight exceptions, and its fluctuations mark quite distinctly the periods of financial speculation and distress. The great fluctuations in the line of sheep raising may be seen to have some correspondence with special tariff legislation. The striking opposition of hog raising to sheep raising is in accord with the universal experience that farmers easily turn from one to the other. The rapid development immediately following the civil war represents the restocking of farms and the great expansion in farm industry so noticeable during that period. The falling off in numbers of live stock during the last five years is evidently a reaction from a very apparent over-production in many directions during the previous ten years. The miles of railroad are shown in thousands, the population and live stock in millions.