128 On Heterochromia Iridis in Man and Animals 



shorthorn cattle, in which he puts forward a chemical theory of " Intra- 

 zygotic inhibition and reaction in response to specific set (? genetic) 

 conditions," p. 27, and alludes to the possibility that " unit characters 

 may arise from a partial destruction of larger units, and that a determiner 

 for a unit character behaving precisely in unit fashion 7nay be a 

 ' complex ' capable of being shattered into a large number of inde- 

 pendently behaving characters," p. 26. 



(1 



(2; 



(2a 

 (26 

 (2c; 

 (2rf; 



(3; 



(4 



(s; 



(6, 



(7; 

 (8; 



(9: 

 (lo; 

 (11 



(12 

 (13 



BIBLIOGRAPHY. 



J. Hutchinson. Ophthalmic Hospital Reports. London, 1869. 



Marcos Gdnn. The Ophthalmic Review. London, 1889. 



Sym. The Ophthalmic Review. London, 1889. 



Thorpe. Brit. Med. Journal, Vol. ii. 1906. 



Allen. Brit. Med. Jouryud, Vol. I. 1906. 



Ross. Biit. Med. JourTial, Vol. I. 1906. 



Malgat. Reciieil d^Ophthalmologie. 1895. 



FucHS. Zeitschrift fiir Augenheilkunde. 1906. III. 



Anton Ldtz. Inaugural Dissertation. Berlin, 1908. 



Hurst, C. Proceedings Royal Society, B. Vol. vm, 1908. On the Inheritance 

 of Eye Colour in Man. 



Przibram, Hans. Archiv fiir Entvncklungs Mechanik der Organismen. 1907. 

 Pearson, Nettleship, and Usher. A Monograph on Albinism in Man. 



1911. 

 Bateson. Mendel's Principles of Heredity. 1909. 

 Pdnnett. Mendelism. 1911. 



Davenport. "The Imperfection of Dominance." American Breeders' Maga- 

 zine, Vol. I. No. 1, p. 42. 



H. H. Laughlin. The Inheritance of Colour in Shorthorn Cattle. American 



Naturalist, December, 1911. American Naturalist, January 1912. 

 A. R. Gdnn. Article on " Albino," Ency. Brit. 11th Ed. (Mudge.) 



