BIBLIOGRAPHY 347 
bE Vriss, H., 1908. Bastarde von Cinothera gigas. Ber. 
deutsch. Bot. Gesell., XXVI. a. 
DE VriEs, Hugo, 1909. On Triple Hybrids. Bot. Gaz., XLIX. 
pE Vrigs, H., 1911. Uber doppeltreziproke Bastarde von 
nothera biennis und O. muricata. Biol. Centr., XXXI. 
DE Vriss, H., 1913. Gruppenweise Artbildung. Berlin. 
DE Vriks, H., 1916. Gute, harte und leere Samen von 
CEnothera. Zeits. Abst. Vererb., 16. 
DE Vrizs, H., 1918. Mutations of Cnothera suaveolens. 
Genetics, 3: 
DE Vrigs, H., 1919. M£nothera Lamarckiana Mut. Simplex. 
Ber. deutsch. Bot. Ges., 37. 
DE Vrigs, H., 1919. CEnothera Lamarckiana Erythrina, eine 
neue Halbmutante. Zeits. Abst. Vererb., 21. 
DE Vries, H., 1919. CEnothera Rubrinervis, a Half Mutant. 
Bot. Gaz., 47. 
WEINSTEIN, A., 1918. Coincidence of Crossing over in Droso- 
phila melanogaster. Genetics, 3. 
Weinstein, A., 1920. Homologous Genes and Linear Linkage 
in Drosophila virilis. Proc. Nat. Acad., 6. 
Weisman, AuaustT, 1913. Vortrage iiber Deszendenztheorie. 
Jena, 1913. 
Wenricu, D. H., 1916. The Spermatogenesis of Phrynotettix 
Magnus. Bull. Mus. Comp. Zoél. Harv., 60. 
WHEELER, W. M., 1903. The Origin of Female and Worker 
Ants from the Eggs of Parthenogenetic Workers. Science, 
XVIII. 
WHEELER, W. M., 1910. The Effects of Parasitic and Other 
_ Kinds of Castration in Insects. Jour. Exp. Zodl., VITI. 
WueEeELerR, W. M., 1910. A Gynandromorphous Mutillid. 
Psyche, XVII. 
WueEeer, W. M., 1914. Gynandromorphous Ants, Described 
during the Decade, 1903-1913. Am. Nat., XLVIII. 
Wuitman, C. O., 1919. Orthogenetic Evolution in Pigeons. 
Edited by O. Rippiz. Carnegie Inst. Wash., pub., 257. 
Wuirney, D. D., 1912. Reinvigoration Produced by Cross 
Fertilization in Hydatina senta. Jour. Exp. Zodl., XII. 
Wuirney, D. D., 1914. The Influence of Food in Controlling 
Sex in Hydatina senta. Jour. Exp. Zodél., XVII. 
