392 MAINE AGRICULTURAL e;xpe;rimi;nt station. 1912. 



LITERATURE CITED. 



(i) Austin, E. H. 1008 Original laying capacity. Farm-poultry 

 (Boston), vol. 19, p. 347. 



(2) Baur, E. iqii Einfiihrung in die experimentelle Vererbungs- 



lehre. Berlin, pp. 1-293. 



(3) Bate;son, W. 1909 Mendel's principles of heredity. Cambridge 



(Univ. Press), pp, xiv -j- 396. 

 (,4) Bateson, W. and PunnETT, R. C. 191 i The inheritance of the 

 peculiar pigmentation of the silky fowl. Journal of Gen- 

 etics. Vol. I, pp. 185-203. 



(5) Dackweiler, W. 1909 Die Eintausend-Eier-Henne. Deutsche 



landwirt. Geflitgel-Zeitung. 12 Jahrg. Nr., pp. 534-535. 



(6) Davenport, C. B. 1909 Inheritance of characteristics in the 



domestic fowl. Carnegie Inst. Publ. 121, pp. i-ioo. 



(7) 1910 The Imperfection of dominance and some of its 

 consequences. Anier. Nat., vol 44, pp. 129-135. 



(8) Duncan, J. Matthews 1871 Fecundity, fertility, sterility and 



allied topics. (Second edition.) New York, pp. xvi and 

 498. 



(9) East, E. M. 1909 The distinction between development and 



heredity in breeding. Amer. Nat., vol. 43. 



(10) FeoEricke, K. 1909 Jahrbuch der Vogelkunde 1908. Stuttgart 



(Kosmos Verlag), pp. 1-130. 



(11) Geyeein, (/EG. Kennedy 1865 Poultry-breeding in a commer- 



cial point of view. London. 



(12) GoodaeE, H. D. 1909 Sex and its relation to the barring factor 



in poultry. Science N. S., vol. 29, pp. 1004-1005. 



(13) 1910 Breeding experiments in poultry. Proc. Soc. Expt. 

 Biol. Med., vol. 7, pp. 178-179. 



(14) Hagedoorn, a. L. 1909 Mendelian inheritance of sex. Arch. f. 



Entwicklungsmech. Bd. 28, pp. 1-34. 



(15) Handrik, 1908 Anzeichen der Legetatigkeit. Deutsche land- 



wirt. Gefliigel-Zeitung, 12 Jahrg, Nr. 13, p. 202. 



(16) Hanke, 1908 Gefiederte Welt. Cited from Floricke ('10, p. 76). 



(17) HeiEr, Euzabeth 1909 Legetatigkeit. Deutsche landw. Ge- 



fliigel-Zeitung. Jahrg. 12, p. 557. 



(18) Herrick, F. H. 1907 a Analysis of the cyclical instincts of 



birds. Science, N. S., vol. 25, pp. 725-726. 

 (19 J907 b The blending and overlap of instincts. Ibid., pp. 



781-782. 

 (20) Jenner, Edward 1788 Observations on the natural historj' of 



the cuckow. Phil. Trans. Roy. Soc, Part 11, Art. 14. 



