52 substantially after 1860,^^ and as it did, labor was freed to go into manufacturing and services. In i860, 58.9 percent of the working labor force was engaged in agriculture; by 1900 the figure had fallen to 37.5 percent, and it continued to decrease thereafter until, by i960 only 6.3 percent of the labor force was so 39 engaged. More food with less people was certainly "one of the great phenomena of economic history. The machine did not produce food, of course; the producers were farmers working in the nation's rich soil. Few regions in the world could compare with the thick, black of earth of Indiana, Illinois, or Iowa when it came to growing corn, for example; but machines, hi especially the reaper, allowed farmers to make the most of what they had. As increasing farm production yielded food enough for the domestic population and more, the nation turned its energies to manufacturing. As a nation we might of course have continued after the turn of the century to devote our industrial energies to agriculture in relatively the same degree as formerly, utilize our surplus productive 38 39 40- See Appendix A, Table 6. See Appendix A, Table 5- Clarence H. Danhof, Discussion of Rasmussen's "Impact of Technological Change," Journal of Economic History. XXII (December, I962), p. 592. hi Harvesting is a critical point in farm production. Reaping must be accomplished quickly or the crop is lost.