LITERATURE CITED 
(1) Eruerinee, W. C. 
1921. Characters connected with the yield of the corn plant. Mo. Agr. 
Exp. Sta. Research Bul. 46, 17 pp., illus. 
(2) Hayes, H. K., and ALEXANDER, L. 
1924. Methods of corn breeding. Minn. Agr. Exp. Sta. Bul. 210, 
22 pp., illus. 
(3) Kressevpacn, T. A. 
1922. Corn investigations. Nebr. Agr. Exp. Sta. Research Bul. 20, 
151 pp., illus. 
(4) Kyuz, C. H., and Stronesere, H. F. 
1925. Associations between numbers of kernel rows, productiveness, 
and deleterious characters in corn. Jn Jour. Agr. Research. 
[In press.] : 
(5) Miner, J. R. 
1922. Tables of i-r? and 1-r? for use in partial correlation and in 
trigonometry. 49 pp. Baltimore. 
(6) Myers, C. H., Love, H. H., and Bussretu, F. P. 
1922. Production of new strains of corn for New York. N. Y. 
Cornell Agr. Exp. Sta. Bul. 408, pp. 207-268, illus. 
(7) dtrerery, Ws Dp 
1922. The experimental basis for the present status of corn breeding. 
In Jour. Amer. Soc. Agron., vol. 14, pp. 1-17. 
(8) Tottey, H. R., and Ezexren, M. J. B. 
1923. A method of handling multiple correlation problems. In 
Jour. Amer. Statis. Assoc., vol. 18, pp. 993-1003. 
(9) Wauuace, H. A... 
1923. What is in the corn judge’s mind? Jn Jour. Amer. Soe. 
Agron., vol. 15, pp. 300-304. 
(10) Wriaeut, S. 
1917. The average correlation within subgroups of a population. In 
Jour. Wash. Acad. Sci., vol. 7, pp. 532-535. 
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