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Neue Literatur. 



Hoojflaiid. D. M.. 1021. En studie over farailieteelt in de Rundveefokkerij. 



Dissert., Veeartsenijkund. Hooiieschool Utrecht. Rotterdam, Drukkerij 



Libertas. 127 S. 

 Hovelaequc. A.. 1920. Anatomie et morphogenie dune anomalie hereditaire 



des membres abdorainaux. Absence congenitale du tibia. Suppl. Bull. 



Biol. France et Belgique. 3. S. 156. 54 Textf. 

 Huxley, T. S.. 1921. Linkage in Garamaius chevreuxi. Journal of Genetics. 



il. S. 229—234. 

 Klatt. B., 1921. Mendelismus, Domestikation und Kraniologie. Arch. i. An- 

 thropologie N. F. IS. S. 225—250. 4 Textf. 

 Laneefield. R. C. and 3[ctz. C W., 1921. Nondisjunction and the chromosome 



relationships of Drosophila willistoni. Proc. Nation. Acad. Sc. U. S. A. 



7. S. 225^ 229. 

 Lilipiiicott, W. A.. 1921. Further data on the inheritance of blue in poul- 

 try. Am. Naturalist. 55. S. 289 -327. 3 Taf. 1 TextL 

 Little, C. C, 1921. Non-disjunction of the fourth chromosome of Drosophila. 



Science N. S. 53. S. 1()7. 

 Lyiicli, C. G.. 1921. Short ears an autosomal mutation in the house mouse. 



Am. Naturalist. 55. S. 421—426. 1 TextL 

 Mavor. J. W., 1921. On the elimination of the X chromosome fromthe egg 



of Drosophila melanogaster by x-rays. Science N. S. 54. S. 277 — 279. 

 MoiroAvsky. E. u. Leweii, L., 1921. Tierzeichnung, Menschenscheckung und 



Systematisation der Mutterniäler. Berlin, J. Springer. 79 S. 19 Taf. 



19 TextL 

 Mohr, 0. Ij. and Sturtcvant. A H.. 1919. A semi-lethal in Drosophila fune- 



bris that causes an excess of males Proceed. Soc. Exp. Biol, and Medicine. 



16. S. 95—96. 

 Onslow, IL. 1921. The inheritance of wing colour in Lepidoptera V. Melanism 



in Abraxas grossulariata ( var. variegata Porritt). Journ. Genetics. 



U. S. 123—140. 1 TaL 6 TextL 

 Oii.slow, H., 1921. The inheritance of wing colour in Lepidoptera VI. Journ. 



of Genetics. 11. S. 277—292. 1 Taf. 10 TextL 

 Onslow, 11., 1921. The inheritance of wing-colour in Lepidoptera VII. 



Journ. of Genetics. IL S. 293— 298. I TaL 

 Payne, T. A, and Denny. M.. 1921. The heredity of orange eye-color in 



Drosophila melanogaster. Am. Naturalist. 55. S. 377 — 381. 

 Pearl, R., 1921. Experimental studies on the duration of life. The scientific 



Monthly (August) S. 143-162. 

 IMiilipps, J. C 1921. A further report on species crosses in bird. Genetics. 



6. S. 366—383. 5 Textf. 

 Pitt, P., 1921. Notes on the genetic behaviour of certain characters in the 



polecat, ferret, and in polecat- fen-et hybrids. Journ. Genetics. 11. 



S. 99—116. 2 TaL 1 Textf. 

 Poll, H.. 1921. Das Zahlenverhältnis der Geschlechter bei Vogelraischlingen. 



Journ. L Ornithologie. S. 512—526. 1 Taf. 

 Puniiet, R. ('. and Pease. M. S.. 1921. Genetic Studies in Poultr.y IV On the 



barred plumage of certain breeds. Journ. of Genetics. 11. S. 235 



bis 243. 2 Textf. 



