463 Biologia generalis. 



anderes Geschlecht. Geschlechtliche Verschiedenheit bei Dominanz. Ge- 

 trennte Vererb, beim Menschen. Parallelfälle zur intergeschlechtlichen 

 Hybridisation. Vererb, beiden Geschlechtern gemeinsamer Merkmale. 

 Geschlechtsbestimmung bei Pflanzen.] 

 61548 Morgan, T. H. 577.8 

 1911. An altération of the sex-ratio induced by hybridization. Proc. 

 Soc. exper. Biol. Med. N. Y. Vol. 8 p. 82—83. 



49 Morgan, T. H. 577.8 



1911. The Application of the Conception of Pure Lines to Sex-limited 

 Inheritdnce and to Sexual Dimorphism. Ainer. Natural. Yol. 45 p. 65— 

 78. (Abstr. vide B. Z. Vol. 21 No. 49919.) 



50 OÜYer, James. 577.8 



1911. The hereditary tendency toward twin-bearing, and the influences 

 aiding in the détermination of sex. Lancet Vol. 181 p. 496—497. [In- 

 fluence of food, température on production of sex.] 



51 Robiuson, E. 577.8 



1911. Nouveaux arguments en faveur de l'action des glandes surréna- 

 les sur la détermination des sexes. C. E. Acad. Se. Paris T. 153 p. 1026 

 —1027. 



52 Schleip, W. 577.8 



1911. Ueber die Chromatinverhältnisse bei Ängiostomum {Rhabdonema) 

 nigrovenosum. Ber. nat. Ges. Freiburg i. B. Bd. 19 p. l — 8. — Das 

 Verhalten des Chromatins bei Ängiostomum (Rhabdonema) nigrovenosum. 

 Ein Beitrag zur Kenntnis der Beziehungen zwischen Chromatin und Ge- 

 schlechtsbestimmung. Arch. Zellforsch. Bd. 7 p. 87—138, 5 Taf. 



53 Shearer, Cresswell. 577.8 



1911112. The Problem of Sex Determination in Dinophilus gyrociliatus. 

 Journ. mar. biol. Ass. Plymouth S. Vol. 9 p. 156—160, 1 flg. — 

 Eep. 8l8t Meet. Brlt. Ass. Adv. Sc. p. 416—417. [Sperm deposited in 

 immature female gonad. Male nuclear component remains distinct du- 

 ring segmentation. Egg cells yieldicg males contain only female compo- 

 nent, male producing eggs contain both.] 

 61554 Shull, A. Fraukliu. 577.8 

 1911. The Proportion of Male-producers in Hydatina senta as Afiected 

 by Extemal and Internal Factors. (Amer. Soc. Zool. east. Brauch). 

 Science N. S. Vol. 33 p. 391. 

 5Ô Smith, Geoffroy. 577.8 

 1911. Studies in the Expérimental Analysis of Sex. Part 5. — On the 

 Effects of Testis-extract Injections upon Fowls. Quart. Journ. micr. Sc. 

 Vol. 56 p. 591—612. [No évidence that testis contains an internal sé- 

 crétion calling forth male secondary sexual characters in hen.] — Part 6. 

 — On the Cause of the Fluctuations in Growth of the Fowl's Comb. 

 Vol. 57 p. 45 — 51, 4 pis., 5 figg. [Fatty infiltration of comb in laying 

 hens concomitant with increased fat metabolism.] 



56 Wilson, Edmund B. 577.8 



1911. The Sex Chromosomes. Arch. mikr. Anat. Abt. 2 Bd. 77 p. 249 

 -271, 5 figg. 



57 Carmthci-s, S. W. 577.8 



1912. The Determining Factor in Sex. Lancet Vol. 182 p. 260. [Research- 



es of ClESIELSKI.] 



58 Caullery, Maurice. 577.8 



1912. Les problèmes de la sexualité. Eev. scient. Ann. 50 Sem. 1 p. 

 65—73. 



59 Gruenberg, Benj. C. 577.8 



1912. Physiological Sex Determination. Science N. S. Vol. 35 p. 593— 

 594. [R. Robinson. Influence of suprarenals.] 

 61560 Hertwig, Eichard. 577.8 

 1912. Ueber den derzeitigen Stand des Sexualitätsproblems nebst einigen 

 Untersuchungen. Biol. CentralbL Bd. 32 p. 1—45, 65-111, 12J— 146, 

 7 flgg. 



15. VII. 1912 



