64 



(95) Bryan, O. C, and Neal, W. M. 



1936. THE INFLUENCE OF VARYING AMOUNTS OF WATER-SOLUBLE PHOS- 

 PHORUS IN DIFFERENT SOIL TYPES ON THE RESPONSE OF CULTI- 

 VATED crops. Jour. Agr. Res. 52: 459-466, illus. 



(96) Buckner, G. Davis. 



1919. THE COMPOSITION OF THE ASH OF CRAB GRASS (DIGITARIA SAN- 

 GUINALIS) AS AFFECTED BY THE SOIL IN WHICH IT IS GROWN. 



Amer. Chem. Soc. Jour. 41: 1384-1385. 



(97) Burgess, Paul S., and Pember, F. R. 



1923. "active" aluminum as a factor detrimental to crop pro- 

 duction in many acid soils. R. I. Agr. Expt. Sta. Bui. 194, 

 40 pp. 



(98) Burke, Edmund, Nygard, Iver J., and Martin, W. M. 



1933. EXPERIMENTS with PHOSPHATE FERTILIZERS ON MONTANA SOILS. 



Mont. Agr. Expt. Sta, Bui. 280, 52 pp. 



(99) Byczkowski, Aleksy. 



1936. mechanism of the action of potash fertilizers on the 

 yield of plants (barley) . Polish Agr. Forest Ann. 37: 37- 

 134. 

 (100) Byers, Horace G. 



1935. SELENIUM OCCURRENCE IN CERTAIN SOILS IN THE UNITED STATES 



with a discussion of related topics. U. S. Dept. Agr. Tech. 

 Bul. 482, 48 pp., illus. 

 (101) 



1936. selenium occurrence in certain soils in the united states 

 with a discussion of related topics. Second report. U. S. 

 Dept. Agr. Tech. Bul. 530, 79 pp., illus. 



(102) 



1937. selenium in Mexico. Indus, and Engin. Chem. 29: 1200-1202. 



(103) and Knight, Henry G. 



1935. SELENIUM IN SOILS IN RELATION TO ITS PRESENCE IN VEGETATION. 



Indus, and Engin. Chem. 27: 902-904. 



(104) Miller, John T., Williams, K. T., and Lakin, H. W. 



1938. SELENIUM OCCURRENCE IN CERTAIN SOILS IN THE UNITED STATES 



with a discussion of related topics. Third report. U. S. 

 Dept. Agr. Tech. Bul. 601, 75 pp., illus. 



(105) Carlstrom, B., and Hjarre, A. 



1938. DIE BEDEUTUNG DER FUTTERUNG ALS PRADISPONIERENDEN 

 FAKTORS BEI DER INFEKTIOSEN ANAMIE. 13th Illtematl. Tier- 



arztl. Kong., Zurich-Interlaken, Switzerland, 1: 287-305. 



(106) Carlyle, E. C. 



1931. MANGANESE IN TEXAS SOILS AND ITS RELATION TO CROPS. Tex. Agr. 



Expt. Sta. Bul. 432, 37 pp. 



(107) Carolus, R. L. 



1933. TOMATO FERTILIZATION. II. EFFECT OF DIFFERENT FERTILIZER 

 RATIOS ON THE CHEMICAL COMPOSITION OF TOMATOES. Va. 



Truck Expt. Sta. Bul. 81, pp. 1085-1117. 

 (108) 



1933. SOME SIGNIFICANT VARIATIONS IN THE CHEMICAL COMPOSITION OF 

 THE PLANT ASSOCIATED WITH A MALNUTRITION TROUBLE OF 



potatoes. Am. Potato Jour. 10: 147-164. 



(109) 



1935. EFFECTS of magnesium deficiency in the soil on THE YIELD, 



APPEARANCE AND COMPOSITION OF THE VEGETABLE CROPS. 



Amer. Soc. Hort. Sci. Proc. (1934) 31: 610-614. 



(110) Carpenter, F. B. 



1895. TYPES OF TOBACCO AND THEIR ANALYSES. N. C. Agr. Expt. Sta. 



Bul. 122, pp. 331-366. 



(111) Cary, C. A. 



1920. deficiency diseases. Amer. Vet. Med. Assoc. Jour. 56: 609-614. 



(112) Chatin. 



1851. [Paris] Acad, des Sci. Compt. Rend. 33: 529-531, 584-585. 



(113) Chung, H. L., and Ripperton, J. C. 



1929. utilization and composition of oriental vegetables in 

 Hawaii. Hawaii Agr. Expt. Sta. Bull. 60, 64 pp. 



