120 Segregation of Fecundity Factors in Drosopliila 



LITERATURE CITED. 



1908. East, E. M. " Inbreeding in Corn." Coim. Agri. Exp. Sta. Report, 1907— 



1908, pp. 419—428. 

 1910. . "An Interpretation of Variation that is Apparently Continuous.' 



Amer. Nat. Vol. xliv. pp. 739-746. 

 1912. and Hayes, H. K. "Heterozygous in Evolution and Plant Breeding." 



Bui. 243, Bweau of Plant Industry., U.S. Dept. of Agriculture., pp. 58. 



1909. Nilsson-Ehle, H. " Kreuzungsuntersuchungen an Ilafer und Weizen." 



Lunds Universitets A7'ssk?'ift, Vol. v. No. 2, pp. 122. 

 1912. Pearl, Raymond. " The Mode of Inheritance of Fecundity in the Domestic 



Fowl." Journal Experimental Zoology, Vol. xiii. No. 2, pp. 153 — 268. 

 1912. Phillips, J. C. " Size Inheritance in Ducks." Joimial Experimental 



Zoology, Vol. xii. No. 3, pp. 369—380. 

 1908. Shull, G. H. " The Composition of a Field of Maize." American Breeders' 



Association Reports, Vol. iv. pp. 296 — 301. 



