When one stops to consider (1) that the wheat crop alone annually removes from the soil of the United States more phosphoric acid than is the equivalent of twice the amount of phosphate rock produced in the country; and (2) that over half of the amount mined is exported so that the fertilizers used in the United States return to the soil only one-fourth of the phosphoric acid that is taken away by the wheat crop alone, without considering the other crops, we can readily see that the consumption of fertilizer and phosphate rock not only will, but of right ought to, enormously increase, and that the industry is a permanent one that will last without cessation or danger of serious interruption as long as the world eats bread. That it has been and still is being developed almost entirely by outside capital is one of the features that seems to attend the development of practically all the industries of the State. A complete analysis of a dry sample of average “brown rock,” which the writer had made several years ago, may be of interest, and is as follows: Moisture .87 Combined water and organic matter 1.53 Sand and insoluble matter 2.76 Peroxide of iron 2.40 Alumina 1.99 Lime 49.07 Magnesia .24 Carbonic acid 1.08 Equals carbonate of lime, 2.41. Fluorine 2.98 Sulphuric acid 1.03 Phosphoric acid 35.62 Equals bone phosphate of lime, 77.78. ----- Total 99.57 The rock which is exported from Tennessee goes to England, Scotland, Ireland, Belgium, Holland, France, Spain, Italy, Austria and Japan. The domestic rock is consumed by the various fertilizer factories all over that part of the United States east of the Mississippi River, some of the principal points being Philadelphia, Pa.; Buffalo, N. Y.; Cleveland and Columbus, Ohio; Chicago, Ill.; Indianapolis, Ind.; Lynchburg, Staunton, Norfolk and Richmond, Va.; Memphis, Nashville and Chattanooga, Tenn.; Greenville, Columbia and Charleston, S. C.; Charlotte and Winston, N. C.; Macon and Atlanta, Ga.; Meridian, Miss.; Birmingham, Montgomery and Mobile, Ala. In conclusion, a word might be appropriate on the subject of the direct use of raw ground phosphate rock as a fertilizer, without acidulation.