Alexander, L. J., Young, H. C. and Kiger, C. M. The causes and control of damping-off of tomato seedlings. Ohio Exp. Sta. Bul. 496. 1931. Van Haltern, Frank. Control of tomato seedbed diseases of southern plants. Ga. Exp. Sta. Bul. 187. 1935. Fertilizers Work, Paul. Tomato fertilizer experiments in Chautauqua County, New York. Cornell Exp. Sta. Bul. 467. 1928. Hartman, J. D., Work, Paul Wessels, P. H. Tomato fertilizer experiments on Long Island. Cornell Exp. Sta. Bul. 676. 1937. Mack, W. B., Stout, G. J. and Rahn, E. M. Fertilizer experiments with tomatoes. Penna. Exp. Sta. Bul. 393. 1940. Sayre, C. B. Effects of fertilizers and rotation on earliness and total yields of tomatoes. N.Y. Exp. Sta. Bul. 619. 1933. Sayre, C. B. Starter solutions. Farm Research (N.Y. Exp. Sta. Geneva) Vols. 5, 6, and 7, No. 2. April 1939, '40, '41. Parker, M. M. Tomato fertilization. (1) The effect of different fertilizer ratios on the yield to tomatoes. Va. Exp. Sta. Bul. 80. 1933. Carolus, R. L. Tomato fertilization. (2) The effect of different fertilizer ratios on the chemical composition of tomatoes. Va. Exp. Sta. Bul. 81. 1933. Thomas, R. P. Effect of fertilizer treatments of a soil on the quality and yield of tomatoes. Md. Exp. Sta. Bul. 386. 1935. Friend, W. H. Tomato varieties and fertilizers for the lower Rio Grande valley of Texas. Texas Exp. Sta. Bul. 438. 1931. Comin, Donald and Bushnell, John. Fertilizers for early cabbage, tomatoes, cucumbers, and sweet corn. Ohio Exp. Sta. Bul. 420. 1928. Hepler, J. R. and Kraybill, H. R. Effect of phosphorus upon the yield and time of maturity of the tomato. N.H. Exp. Sta. Tech. Bul. 28. Rev. 1926. Hester, J. B. Soil fertility in tomato production. Campbell Soup Co. Bul. 3. 1941. Cultural Practices Thompson, H. C. Pruning and training tomatoes. Cornell Exp. Sta. Bul. 580. 1934. Watts, V. M. Pruning and training tomatoes in Arkansas. Ark. Exp. Sta. Bul. 292. 1933. Hibbard, R. P. The various effects of frost protectors on tomato plants. Mich. Exp. Sta. Tech. Bul. 124. 1932. Thompson, H. C. Experimental studies of the effects of cultivation of certain vegetable crops. Cornell Expt. Sta. Memoir 107. 1927. Physiology Kraus, E. J. and Kraybill, H. R. Vegetation and reproduction with special reference to the tomato. Ore. Exp. Sta. Bul. 149. 1918. Biblio. Work, Paul. Nitrate of soda in the nutrition of the tomato. Cornell Exp. Sta. Memoir 75. 1924. Arthur, J. M., Guthrie, J. D. and Newell, John M. Some effects of artificial climates on the growth and chemical composition of plants. Amer. Jour. of Botany, 17: 416-482. 1930.