434 AN INTRODUCTION TO MODERN GENETICS 



woDSEDALEKj J. E. 1913. Spermatogenesis of the pig, with special reference 



to the accessory chromosomes. Biol. Bull. 25. 58 

 WOLTERECK, R. 1932. Gnmdziige einer allgemeinen Biologie. Stuttgart. 



1934. Artdifferenzierung (insbesandere Gestaltanderimg) bei Cladoceren. 

 Z.I.A.V. 67. 279 

 WOODGER, J. H. 1937. The axiomatic method in biology. Cambridge. 29 

 WOODRUFF, L. L. 1935 . Physiological significance of conjugation in Blephar- 



isma undulans. J. Exp. Zool. 70. 231 

 WRIGHT, s. 191 7, 1918. Colour inheritance in mammals. J. Hered. 8, 9. 

 179, 198 

 1922. The coefficient of inbreeding. Am. Nat. 56. 312 

 1927. The effects in combination of the major colour-factors of the 



guinea-pig. Gen. 12. 179 

 1929. Fisher's theory of dominance. Am. Nat. 63. 186, 298 



1931. Evolution in Mendelian populations. Gen. 16. 231, 293 



1932. The role of mutation, inbreeding, crossbreeding, and selection in 

 evolution. Proc. 6th Cong. Gen. 293 



1934. Physiological and evolutionary theories of dominance. Am. Nat. 68. 

 185 



1935. Evolution in populations in approximate equilibrium. J. Gen. 30. 

 293 



1935a. A mutation in the guinea-pig, tending to restore the pentadactyl 

 foot when heterzygous, etc. Gen. 20. 203 

 WRINCH, D. M. 1936. On the molecular structure of chromosomes. Protopl. 

 25. 395 

 and LANGMUIR, I. 1938. The structure of insulin. Science. 393 

 YULE, G. u. 1929. An introduaion to the theory of statistics. London. 333 

 ZELENY, c, and faust, e. c. 1915. Dimorphism in size of spermatozoa and 

 its relation to the chromosomes. P.N.A.S. 1. 58 



ZIMMER, K. G., GRIFFITH, H. D,, and TIMOFEEFF-RESSOVSKY, N. W. 1937. Muta- 



tionsaulosung dutch Betastrahlung des Radiums bei D. melanogaster. 

 Strahlenther. 59. 386 



