326 THE THEORY OF THE GENE 



1919. Duplications. Anat. Rec. XX. 



1919. The genetics of purple eye color in Drosophila melanogaster. 



Jour. Exp. Zool. XXVIII. 



— 1919. Specific modifiers of eosin eye color in Drosopliila melanogaster. 

 Ibid. XXVIII. 



— 1919. Vermilion-deficiency. Jour. Gen. Physiol. I. 

 1919. The developmental stages at which mutations occur in the germ 



tract. Proc. Soc, Exp. Biol, and Med. XVII. 



— 1920. White-ocelli — an example of a "slight" mutant character with 

 normal viability. Biol. Bull. XXXVIII. 



— 1920. The mutant crossveinless in Drosophila melanogaster. Proc. Nat. 



Acad. Sc. VI. 



— 1921. Gametic and observed ratios in Drosophila. Amer. Nat. LV. 



— 1921. Proof of non-disjunction for the fourth chromosome of Droso- 

 phila melanogaster. Science, n.s. LIII. 



1921. Current maps of the location of the mutant genes of Drosophila 



melanogaster. Proc. Nat. Acad. Sc. VII. 

 — 1921. Genetical and cytological proof of non-disjunction of the fourth 

 chromosome of Drosophila melanogaster. Ibid. VII. 



1921. Triploid intersexes in Drosophila melanogaster. Science, n.s. 



LIV. 

 — 1925. Sex in relation to chromosomes and genes. Am. Nat. LIX. 



1925. Haploidy in Drosophila melanogaster. Proc. Nat. Acad. Sci. XI. 



Bridges, C. B., and Morgan, T. H. 1919. The second-chromosome group of 

 mutant characters. Carnegie Inst. Wash. No. 278. 



1923. The third-chromosome group of mutant characters of Drosophila 



melanogaster. Ibid. No. 327. 



Duller, A. H. R. 1924. Experiments on sex in mushrooms and toadstools. 



Nature, CXIV. 

 Gaeothers, E. E. 1913. The Mendelian ratio in relation to certain orthop- 



teran chromosomes. Jour. Morph. XXIV. 



1917. The segregation and recombination of homologous chromosomes 



as found in two genera of Acrididae. Ibid. XXVIII. 



1921. Genetical behavior of heteromorphic homologous chromosomes of 



Circotettix (Orthoptera). Ibid. XXXV. 



Castle, W. E. 1912. The inconstancy of unit-characters. Am. Nat. XLVI. 

 1914. Si?e inheritance and the pure line theory. Zeit. Abst.-Vererb. XII. 



1916. Can selection cause genetic change? Am. Nat. L. 



1916. Further studies on piebald rats and selection with observations 



on gametic coupling. Carnegie Inst. Wash. No. 241, III. 



1919. Studies of heredity in rabbits, rats, and mice. Ibid. No. 288. 



1919. Is the arrangement of the genes in the chromosome linear? Proc. 



Nat. Acad. Sc. V. 



1919. Are genes linear or non-linear in arrangement? Ibid. V. 



1919. Does evolution occur exclusively by loss of genetic factors? Am. 



Nat. LIII. 



Castle, W. E., and Hadlet, P. B. 1915. The English rabbit and the ques- 

 tion of Mendelian unit-character constancy. Proc. Nat. Acad. Sci. I. 



Castle, W, E., and Phillips, John C. 1914. Piebald rats and selection. 

 Carnegie Inst. Wash. No. 195. 



