54 Journal of Agricultural Research voi. xv. no. i 



LITERATURE CITED 

 (i) AxLEN, G. M. 



1914. PATTERN DEVELOPMENT IN MAMMALS AND BIRDS. In Amcf. Nat., V. 48^ 



no. 571, p. 385-412, fig. 1-42; no. 572, p. 467-484. fig- 42a-57; no. 573, 

 p. 550-566, fig. 58-62. References, p. 564-566. 



(2) Arenander, E. D. 



1898. studien tjber das ungehornte rindvieh im nordlichen europa 



unter besonderer berucksichtigung der nordschwedischen 

 fjellrasse, nebst untersuchungen uber die ursachen der 

 HORNLOSiGKEiT. In Ber. Physiol. Lab. Vers. Anst. Landw. Inst. 

 Univ. Halle, Bd. 3, Heft 13, p. 43-184, 7 pi. 



(3) Arkell, T. R., and Davenport, C. B. 



1912. THE nature op the inheritance of horns in sheep. In Sci., n. s. V. 

 35, no. 911, p. 927. 



(4) AULD, R. C. 



1887. hornless ruminants. In Amer. Nat., v. 21, no. 8, p. 730-746, fig. 1-4, 

 pi. 25; no. 10, p. 885-902, fig. 5-18; no. 12, p. 1076-1098, fig. 19. pi. 35. 

 (Continued.) 



(5) B.. L. N. 



1909. ORIGIN OF POLLED DURHAMS. In Breeders' Gaz., v. 55, no. 7, p. 380. 



(6) Barrington, a., and Pearson, Karl. 



1906. ON THE INHERITANCE OF COAT COLOR IN CATTLE. In Biometrika, V. 4, 

 pt. 4, p. 427-464- 



(7) Bateson, William. 



1909. MENDEL 's PRINCIPLES OF HEREDITY. 396 p., illus., 6 col. pi. Cam- 



bridge, Eng. Bibliography, p. 369-384. Supplementary list, p. 385. 



(8) and Saunders, Edith R. 



1901. EXPERIMENTAL STUDIES IN THE PHYSIOLOGY OF HEREDITY. Roy. Soc. 



[London], Rpts. Evol. Com., no. i, 160 p. 



(9) Borden, A. P. 



1910. INDIAN CATTLE IN THE UNITED STATES. In Amer. Breeders' Mag., v. i, 



no. 2, p. 91-94, illus. 



(10) Boyd, M. M. 



1906. BREEDING OF POLLED HEREFORDS. In Amer. Breeders' Assoc. Proc, 

 V. 2, p. 198-201. 



(11) Brewer, W. H. 



1882. on the disposition of color-markings on domestic animals. in 

 Proc. Amer. Assoc. Adv. Sci., v. 30, 1881, p. 246-251. 



(12) Bruce, Robert. 



1909. THE DEXTER CATTLE. In Breeders' Gaz., v. 56, no. 18, p. 887. 



(13) Castle, W. E. 



1912. ARE HORNS IN SHEEP A SEX-LIMITED CHARACTER. In Science, n. s. v. 35, 

 no. 902, p. 574-575- 



(14) Durst, J. U. 



1899. DIE RINDER VON BABYLON ASSYRIEN UND AGYPTEIN UND IHR ZUSAM- 



MENHANG MIT DEN RINDERN DER ALTEN WELT. 94 p. Berlin. 



(15) EWART, J. C. 



1909. HORNLESS CATTLE. In Live Stock Jour., v. 70, no. 1861, p. 599-600. 



(16) Keller, C. 



1897. die afrkanischen elemente in der europaischen haustierwelt. 

 /« Globus, Bd. 72, no. 18, p. 285-289. 



(17) KUHLMAN, A. H. 



1915. JERSEY-ANGUS CATTLE. In Jour. Hered., v. 6, no. 2, p. 68-72, illus. 



