LITERATURE CITED. 
Collins, G. N. 
(1) 1916. Correlated characters in maize breeding. In Jour. Agr. Research, 
v. 6, No. 12, pp. 435-453, pi. .55-63. Literature cited, pp. 452-453. 
(2) 1919. Structure of the maize ear as indicated in Zea-Euchlaena hybrids. 
In Jour. Agr. Research, v. 17, No. 3, pp. 127-135, pi. 16-18. 
(3) and Kempton, J. H. 
1920. A teosinte-maize hybrid. In Jour, Agr. Research, v. 19, No. 1, pp. 
1-38, pi. 1-7. 
• (4) Cook, O. F. 
1915. Brachysm, a hereditary deformity of cotton and other plants. In 
Jour. Agr. Research, v. 3, No. 5, pp. 387-400, pi. 53-62. 
(5) East, E. M., and Hayes, H. K. 
1911. Inheritance in maize. Conn. Agr. Exp. Sta. Bull. 167, 142 p., 
25 pi. Literature cited, pp. 138-142. 
Emerson, R. A. 
(6) 1912. The inheritance of certain "abnormalities" in maize. In Ann. 
Rpt. Amer. Breeders' Assoc, v. 8, pp. 385-399, 7 fig. 
(7) 1920. Heritable characters of maize. II. Pistillate-flowered maize 
plants. In Jour. Heredity, v. 11, No. 2, pp. 65-76, illus. 
(8) Gernert, Walter Byron. 
1912. The Analysis of Characters in Corn and Their Behavior in Trans- 
mission. 58 p., illus. References, pp. 56-58. 
(9) Hartley, C. P. 
1903. Improvement of corn by selection. U. S. Dept. Agr. Yearbook, 
1902, pp. 539-552, pi. 71-77. 
(10) Kempton, J. H. 
1919. Inheritance of spotted aleurone color in hybrids of Chinese maize. 
In Genetics, v. 4, No. 3, pp. 261-274. Literature cited, p. 274. 
(11) 1920. Heritable characters in maize. III. Brachytic culms. In Jour. 
Heredity, v. 11, No. 3, pp. 111-115, fig. 10-12. 
(12) Leavitt, Robert Greenleaf. 
1909. A vegetative mutant, and the principle of homoeosis in plants. 
In Bot. Gaz., v. 47, No. 1, pp. 30-68, 19 fig. 
Montgomery, E. G. 
(13) 1906. What is an ear of corn? In Pop. Sci. Monthly, v. 68, No. 1, pp. 
55-62, fig. 1-14. 
(14) 1911. Perfect flowers in maize. In Pop. Sci. Monthly, v. 79, No. 4, 
pp. 346-349, 6 fig. 
28 
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