346 THE THEORY OF THE GENE 



1916. Notes on North American Drosophilidae with descriptions of 



twenty-three new species, Ann. Ent. Soc. Amer. IX. 

 — 1917. Crossing over without chiasmatype? Genetics. II. 



1917. An analysis of the effect of selection on bristle number in a 



mutant race of Drosophila. Anat. Eee. XI. 



1917. Genetic factors affecting the strength of linkage in Drosophila. 



Proc. Nat. Acad. Sc. III. 



1918. An analysis of the effects of selection. Carnegie Inst. Wash. 



No. 264. 



1918. A synopsis of the Neartic species of the genus Drosophila 



(Sensu lato). Bull. Amer. Mus. Nat. Hist. XXXVIII. 



— 1918. A parallel mutation in Drosophila funebris. Science, XLVIII. 

 1919. Inherited linkage variations in the second chromosome. Carnegie 



Inst. Wash. No. 278 



1920. Intersexes in Drosophila simulans. Science, n.s. LI. 



1920. The vermilion gene and gynandromorphism. Proc. Soc. Exp 



Biol, and Med. XVII. 

 ■ 1920. Genetic studies on Drosophila simulans. I. Introduction. Hybrids 



with D. melanogaster. Genetics. V. 

 1921. Genetic studies on Drosophila simulans. II. Sex-linked group 



of genes. Ibid. VI. III. Autosomal genes. General discussion. Hid. VI. 

 1921. The North American species of Drosophila. Carnegie Inst. Wash, 



No. 301. 



1921. Linkage variation and chromosome maps. Proc Nat. Acad. Se. 



VII. 



1921. A case of rearrangement of genes in Drosophila. Ibid. VII. 



1925. The effect of unequal crossing-over at the bar locus in Droso- 



phila. Genetics. X. 

 Sturtevant, a. H.; Bridges, C. B.; and Morgan, T. H. 1919. The spatial 



relations of genes. Proc. Nat. Acad. Sc. V. 

 Stxjrtevant, a. H., and Morgan, T. H. 1923. Eeverse mutation of the bar 



gene correlated with crossing over. Science, n.s. LVII. 

 Sturtevant, A. H., and Schrader, F. 1923. A note on the theory of sex 



determination. Amer. Nat. LXII. 

 Swingle, W. 1920, Neoteny and the sexual problem. Am. Nat. LIV. 



1922. Is there a transformation of sex in frogs'? Ibid. LVI. 



1925, Sex differentiation in the bullfrog (Rana catesbeiana). Ibid. 



LIX. 

 Tackholm, G. 1920. On the cytology of the genus Eosa. Svensk. Bot. 



Tidskr, XIV. 



1922. Zytologische Studien iiber die Gattung Eosa. Acta Horti Ber- 



giani. VII. 

 Tahara, M. 1921. Cytologische Studien an einigen Kompositen. Jour. Coll. 



Sc. Tokyo Imp. Univ. XLIII. 

 Tanaka, Y. 1913. A study of Mendelian factors in the silkworm Bombyx 

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1913. Gametic coupling and repulsion in silkworms. Ibid. V. 



1914. Sexual dimorphism of gametic series in the reduplication. Trans. 



Sapporo Nat. Hist. Soe. V. 



