LITERATURE 277 



207 WARREN, H. C. : Numerical Effects of Natural Selection Acting 



Upon Mendelian Characters. Genetics, 1917, ii, 305-312. 



208 WEINSTEIN, A. : Coincidence of Crossing Over in Drosophila mel- 



anogaster (ampelophila) . Genetics, 1918, iii, 135-159. 



209 WEISHANN, A. The Evolution Theory. (Trans. J. A. Thomson 



and M. E. Thomson.) London, 1904, 2 vol. 



210 WELLINGTON, R. : Influence of Crossing in Increasing the Yield of 



the Tomato. New York Agr. Exp. Sta. Bull. 346, 1912, 57-76. 



21 1 WENTWORTH, E. N.: The Segregation of Fecundity Factors in 



Drosophila. Jour. Gen., 1913, iii, 113-120. 



212 WENTWORTH, E. N., and AUBEL, C. E.: Inheritance of Fertility in 



Swine. Jour. Agr. Res., 1916, v, 1145-1160. 



21 3 WENTWORTH, E. N., and REMICK, B. L. : Some Breeding Properties 



of the Generalized Mendelian Population. Genetics, 1916, i, 608- 

 616. 



214 WESTE#MARCK, E.: The History of Human Marriage. 3rd Ed., 



London, 1903, pp. 644. 



215 WHEELER, W. M. : The Ants of the Baltic Amber. Schrift. Physik- 



okonom. Gesell. Konigsberg, 1914, Iv, pp. 142. 

 a 16 WHITNEY, D. D. : Reinvigoration Produced by Cross-fertilization in 



Hydatina senta. Jour. Exp. Zool, 1912, xii, 337-362. 

 21 f WHITNEY, D. D. : " Strains " in Hydatina. Bwl. Bull, 1912, xxii, 



205-218. 

 218 WHITNEY, D. D.: Weak Parthenogenetic Races of Hydatina senta 



Subjected to a Varied Environment. Biol. Bull, 1912, xxiii, 321- 



330. 

 210 WIEGMANN, A. F. : Ueber die Bastarderzeuigung im Pflanzenreich. 



Braunschweig, 1828, pp. 40. 



220 WITHINGTON, C. F. : Consanguineous Marriages : Their Effect upon 



Offspring. Mass. Med. Soc., 1885, xiii, 453-484. 



221 WOLFE, T. K.: Further Evidence of the Immediate Effect of Cross- 



ing Varieties of Corn on the Size of the Seed Produced. Jour. 

 Amer. Soc. Agr., 1915, vii, 265-272. 



222 WOODRUFF, L. L. : Two Thousand Generations of Paramecium. 



Arch. f. Protistenkunde, 1911, xxi, 263-266. 



223 WOODS, F. A. : Heredity in Royalty. New York, 1906, pp. 312. 



224 WOODS, F. A. : The Influence of Monarchs. New York, 1913, 



pp. 421. 



225 WRIGHT, S.: The Effects of, Inbreeding on Guinea-pigs. I. Decline 



in Vigor. II. Differentiation among Inbred Families. III. Crosses 

 between Different Highly Inbred Families. (Doctor Wright kindly 

 permitted the authors to read these valuable unpublished papers 

 in manuscript.) 



