they can be kept successfully, their value will be too great to be fed profitably to stock. Comparisons are made of the analyses of the different root crops with the mean of our analyses of the sweet potato, which are decidedly to the advantage of the sweet potato. Comparisons are made of the feeding value of the sweet potato vines compared with that of the clovers, cowpeas and soja bean, and, although not so high in protein as the above, they are higher in nitrogen free extract and ether extract. Analyses show that the sweet potato removes a greater value of the fertilizing elements than is generally supposed; this is on account of the large quantity produced per acre. The vines also contain large percentages of the fertilizing elements; but, if they are left on the land, they improve it by adding humus, and, if they are fed and the manure returned, they improve the land for the same reason. The potatoes seem to reach maturity just about the time that the starch content is at its maximum, the sugars at this time being about the minimum. South Carolina Agricultural Experiment Station -OF Clemson Agricultural College. Analyses of Commercial Fertilizers. M. B. HARDIN, Chief Chemist. H. M. STACKHOUSE, Sec. Board Fertilizer Control CLEMSON COLLEGE, S. C. CLEMSON COLLEGE PRINTERY. |