144 Hertwig, Uber don derzeitigen Stand dcs Scxualitatsproblcms etc. 



Dors., Uber Jakobson's Zuchtungsvcrsuche bo/iiglich des Polymorphism us von 



Papilio Memnon L. und iibcr die Vercrbung sekundiirer Geschlechtsmerk- 



niale (Zcitschr. f. indukt. Abst, und Vererbungslehre, 1910, Bd. Ill, Heft:'.) 

 Mcisenheimer, .!., Experimentelle Studien zur Soma- und Geschlechtsdifferen- 



zierung. Jena 1909. 



Dors., Zur Ovarialtransplantation bei Schmetterlingen (Zool. Anz., Bd. 35, 1910). 

 Ders, Uber die Wirkung von Hoden- und Ovarialsubstanz auf die sekundaren Ge- 



schlechtsraerkmale des Frosches (Zool. Anz, Bd. 38, 1911). 

 Meves, Fr., Die Spermatocytenteilungen bei der Honigbiene (Arch, mikr Anat., 



Bd. 70, 1907). 

 Montgomery, Th.. The sperm atogenesis of Syrbula and Lycosa with general 



considerations upon Chromosome Reduction and the Heterochromosomes 



(Proceed, of the Acad. of Nat. Science of Philadelphia, Febr. 1905). 

 Ders., On morphological differences of the Chromosomes of Ascaris megalocephala 



(Arch. f. Zellf., 2. Bd., 1. Heft). 



Ders., Are particular Chromosomes Sex Determinants (Biological Bull., Bd. 19, 1910). 

 Mordwilko, A., Beitrage zur Biologie der Pflanzenlause (Biol. Centralbl., Bd. 27 



u. 29, 1907, 1909). 

 Morgan, Th., The Chromosomes in the parthenogenetic and sexual eggs of Phyllo- 



xerans and Aphids (Proc. of the Society f. exp. Biol. and Med., Vol. 7, 



Nr. 5, 1910). 

 Ders., The origin of five mutations in eye color in Drosophila and their modes of 



inheritance (Science. N. S., Vol. XXXIII, Nr 849, Apr. 1911). 

 Ders., The origin of nine-wing mutations in Drosophila (Science, N. S., Vol. XXXIII, 



Nr. 847, March 1911). 

 Ders., The biological signification and control of sex (Science, N. S, Vol. XXV, 



Nr. 636, March 1907). 

 Ders., The method of inheritance of two sex-limited charakters in the same animal 



(Proceed, of the Soc. for exp. Biology and Med., Vol. 8, Nr. 1, Oct. 1910). 

 Ders., An alteration of the sex-ratio induced by hybridization (Proc. of the Soc. 



f. exp. Biol. and Med., Vol. 8, Nr. 3, Febr. 1911). 

 Ders., Is the female frog heterozygous in regard to sex- determination? (The amer. 



Naturalist, Vol. XLV, April 1911). 

 Ders., An attempt to analyze the constitution of the Chromosomes on the Basis 



of Sex-limited Inheritance in Drosophila (Journ. of exp. Zool., Vol. 11, Nr. 4, 



Nov. 1911). 

 Ders., A biological and cytological study of sex-determination in Phylloxerans and 



Aphids (Journ. of exp. Zool., Vol. VII, Nr. 2, Sept. 1909). 

 Ders., The reproduction of two kinds of spermatozoa in Phylloxerans etc. (Proc. 



of the Soc. f. exp. Biol. and Med., Vol. V, Nr. 3, 1908). 



Morrill, Charles V., The Chromosomees in the Oogenesis, Fertilisation and Clea- 

 vage of Coreid Hemiptera (Biol. Bull., Bd. 19, 1910). 

 Noll, F., Versuche iiber Geschlechtsbestimmung bei diozischen Pflanzcn (Sitzungsbcr. 



d. Niederrhein. Ges. f. Natur- u. Heilk. zu Bonn, Jahrg. 1907). 

 Nussbaum, M, Die Entstehung des Geschlechts bei Hydatina senta (Arch. f. 



mikr. Anat. u. Entw.-Gesch., Bd. 49). 

 Oudemans, J. Th., Falter aus kastrierten Raupen (Zool. Jahrb., Abt. f. Syst, 



Bd. 12, 1899). 

 Papanicolau, G., Exper. Untersuchungen iiber die Fortpflanzungsverhaltnisse d. 



Daphniden (Biol. Centralbl., Bd. XXX, 1910). 

 Payne, F., On the Sexual Differences of the Chromosome Groups in Galgulus 



oculatus (Biol. Bull . Bd. 14). 

 Ders., Some New Types of Chromosome Distribution and their Relation to Sex 



(ebenda Bd. 16', 1909). 

 Ders., The Chromosomes of Acholla mnltispinosa (Biol. Bull., Bd. 17, March 1910). 



