LITERATURE CITED 
(1) Anonymous. 
1924. Growers of Arkansas pure bred farm seeds inspected and certified 
[by] Arkansas Seed Growers' Association cooperating with 
Arkansas College of Agriculture. 6 pp. Fayetteville, Ark. 
(2) Hayes, H. K. 
1923. Controlling experimental error in nursery trials. In Jour. Amer. 
Soc. Agron., vol. 15, pp. 177-192. 
(3) Jones, D. F. 
1924. The attainment of homozygosity in inbred strains of maize. In 
Genetics, vol. 9, pp. 405-418, illus. 
(4) KlESSELBACH, T. A. 
1918. Studies concerning the elimination of experimental error in com- 
parative crop tests. Nebr. Agr. Exp. Sta. Research Bui. 13, 
95 pp., illus. 
(5) Kyle, C. H. 
1910. Directions to cooperative corn breeders. U. S. Dept. Agr., Bur. 
Plant Indus. [Doc] 564, 10 pp., illus. 
(6) Richey, F. D. 
1924. Effects of selection on the vield of a cross between varieties of 
corn. U. S. Dept. Agr. Bui. 1209, 20 pp., illus. 
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