INHERITANCE OF FECUNDITY 267 



(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) Floericke, K. 1909 Jahrbuch der Vogelkunde 1908. Stuttgart (Kosmos 



Verlag), pp. 1-130. 



(11) Geyelin, Geo. Kennedy 1865 Poultry-breeding in a commercial point of 



view. London. 



(12) Goodale, H. D. 1909 Se.x 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. Entwick- 



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



(15) Handrik, 1908 An'jeichen der Legetiitigkeit. Deutsche landwirt. Geflii- 



gel-Zeitung, 12 Jahrg, Nr. 13, p. 202. 



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



(17) Heier, Elizabeth 1909 Legetiitigkeit. Eieutsche landw. Geflligel-Zei- 



tung. 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) 1907 b The blending and overlap of instincts. Ibid., pp. 781-782. 



(20) Jenner, Edward 1788 Observations on the natural history of the cuckow. 



Phil. Trans. Roy. Soc, Part II, Art. 14. 



(21) Johannsen, W. 1909 Elemente derexakten Erblichkeitslehre. Jena. 



(22) 1911 The genotype conception of heredity. Amer. Nat., vol. 45, pp. 

 129-159. 



(23) LAUCiHLiN, H. H. 1911-1912 The inheritance of color in short-horn cattle. 



Amer. Nat., vol. 45, pp. 705-742, and vol. 46, pp. 1-28. 



(24) Nilsson-Ehle, H. 1909 Kreuzungsuntersuchungen an Hafer undWeizen. 



Lands Univ. Arsstkr.. N. F., Afd. 2, Bd. 5, Nr. 2, pp. 1-122. 



(25) 1911 Kreuzungsuntersuchungen an Hafer und Weizen. II. Ibid. 

 Pd. 7, pp. 1-34. 



(26) Pearl, R. 1910 The relation of the results obtained in breeding poultry 



for increased egg production to the problem of selection. Rpt. 30th 

 Meeting Soc. Proc. Agr. Sci., pp. (of reprint) 1-8. 



(27) 1911 a Inheritance in 'blood lines' in breeding animals for performance, 

 with special reference to the '200-egg' hen. Ann. Rpt. Amer. Breeders' 

 Assoc, vol. 6, pp. 317-326. 



(28) 1911b Inheritance of fecundity in the domestic fowl. Amer. Nat., vol. 

 45, pp. 321-345. 



(29) 1911 c Biometric arguments regarding the genotype concept. Amer. 

 Naturalist, vol. 45, .pp. 561-566. 



(30) 1911 d Breeding p oultry for egg production. Me. Agr. Expt. Sta. 

 Ann. Rept. for 1911, pp. 113-176. 



(31) 1911 e On the accuracy of trap-nest records. Ibid., pp. 186-193. 



(32) 1911 f The personal equation in breeding experiments involving certain 

 characters of maize. Biol. Bulletin, vol. 21, pp. 339-366. 



