91. FUNCTIONS OF ESSEBTIAL ELEMEIWS: HIGHER PLAINS 



Contributors : (a) Carolus, R. L. (b) Gauch, H. G. (c) Volk, H. J. 



References ; (1) Gauch, H. G., and Duggar, W. M. , Jr., Plant Physiol. S8:U57, 1955. (2) stout, P. P., and Meagher, W. R. , 

 Science 108:U71, 19U8. (3) Tsui, C, Am. J. Bot. 55:172, 19U8. (U) Meyer, B. S. , and Anderson, D. B., Plant physiology. 

 New York: D. Van Nostrand, 1952. (5) Curtis, 0. F. , and Clark, D. G., Introduction to plant physiology . New York: McGraw- 

 Hill, 1950. (6) Mulder, E. G. , Ann. Rev. Plant Physiol. 1:1, 1950. (7) Hewitt, E. J., Ann. Rev. Plant Physiol. 2:25, 1951. 

 (8) Bonner, J. F. , Plant biochemistry . New York: Academic Press, 1950, (9) McElroy, W. D. , and Glass, H. B. , (editors). 

 Phosphorus metabolism , Baltimore; John Hopkins Press, 1951. (10) McElroy, W. D., and Glass, H. B., (editors). Copper meta- 

 bollsm, Baltimore: John Hopkins Press, 1950. (11) Sumner, J. B. , and Myrback, K. , The enzymes, chemistry and mechanism of 

 action , New York: Academic Press, 1951. 



Reviewers : Clark, D. G.; Gauch, H. G.; Judkins, W. P.; KrantJ, B. A.; McMurtrey, J. E.j Jr.; Meyer, B. S.; Purvis, E. R.; 

 Raleigh, G. J.; Reuther, W. ; Sayre, J. D. ; Scarseth, G. D.; Scott, L. E. ; VoUi, H. J. 



92. SIGNS OF CHIMICAL ELEMEOT DEFICIENCY AND EXCESS: HIGHER PLANTS 



Contributors : (a) Carolus, R. L. (b) Houghland, G. V. C. (c) Judkins, W. P. (d) Krantz, B. A. (e) McMurtrey, J. E. , Jr. 

 (f) Purvis, E. R. (g) Reuther, V. (h) Scarseth, 0. (1) Volk, N. J. 



References : (1) Rambridge, Gove (editor). Hunger signs in crops , Washington: Nat. Fertilizer Assoc, 19U9. (2) Kitchen, 

 K. B. (editor) , Diagnostic techniques for soils and crops . Washington: American Potash Inst., 19U8. (5) U, S. Dept. Agr. 

 Yearbook, 1938. (U) Wallace, T. , Diagnosis of mineral deficiencies in plants . London: H. M. Stationery Office, 1951. (5) 

 Young, R. S., N. Y. Agr. Exp. Sta. Mem. 17U, 1935. (6) Wallace, T., and Hewett, E. N. , J. Pomol. 22:153, 19U6. (7) Chapman, 

 H. D., Lleblg, G. F. Jr., and Vanselow, A. P., Proc. Am. Soil Scl. Soc. U:196, 1939. (8) Forbes, R. H., Univ. Calif. Pub. 

 Agr. Scl. 1,595, 1917. (9) Willis, L. F., and Plland, J. R. , J. Agr. Res. 52;U67, 1936. (10) Hewett, E. J., Nature, l6l:U89, 

 19U8. (llT lyon, C. B., and Beeson, K. C, Bot. Gaz. 109:506, 19U8. (12) Vlets, F. J., J. Am. Soc. Agron. U5:150, 1951. 



Reviewers ; Carolus, R. L.; Cooper, H. P.; Houghland, G. V. C; Judkins, W. P.; Krantz, B. A.; McMurtrey, J. E., Jr.; 

 Purvis, E. R.; Reuther, W.; Scarseth, G. D.; Scott, L. E.; VoUi, R. J. 



333 



