312 EARL W. BENJAMIN. 



Studies on the physiology of reproduction in the 



domestic fowl. XV. Dwarf eggs. Journ. agr. res. 6:977-1042. 

 (Abstracted in Dwarf eggs of the domestic fowl. Maine Agr. Exp. Sta. 

 Bui. 255:289-328. 1916.) 1916. 



PEARSON, KARL. Variation of the egg of the sparrow (Passer domesticus). 

 Biometrika i : 256. 1902 a. 



Mathematical contributions to the theory of evo- 

 lution. XI. On the influence of natural selection on the variability 

 and correlation of organs. Roy. Soc. London. Proc. 60: 330-333. 

 1902 b. 



Note on the separate inheritance of quantity and 



quality in cows' milk. Biometrika 7 : 548550. 1910. 

 RICE, JAMES E. Methods of increasing production and improving the 



quality of eggs. New York State Dept. Agr. Cir. 54:1295-1315. 1912. 

 Breeding poultry for egg production. In The 



poultry industry in New York State. New York State Dept. Agr. 



Bui. 65:260-301. 1914. 

 RICE, JAMES E., NIXON, CLARA, AND ROGERS, CLARENCE A. The 



molting of fowls. Cornell Univ. Agr. Exp. Sta. Bui. 258:17-68. 1908. 

 RIDDLE, OSCAR. On the formation, significance, and chemistry of the 



white and yellow yolk of ova. Journ. morph. 22:455-491. 1911. 

 SORBY, H. C. On the colouring-matters of the shells of birds' eggs. 



Zool. Soc. London. Proc. 1875 :351-365. 1875. 

 STEWART, J. H., AND ATT/OOD, HORACE. Some factors influencing the 



vigor of incubator chickens. West Virginia Univ. Agr. Exp. Sta. 



Bui. 124:21-45. (Reference on p. 23-30.) 1909. 

 SURFACE, FRANK M. The histology of the oviduct of the domestic hen. 



Maine Agr. Exp. Sta. Bui. 206:395-430. 1912. 

 THOMPSON, D'ARCY WENTWORTH. On the shapes of eggs, and the causes 



which determine them. Nature 78:111-113. 1908. 

 TSCHERMAK, A. VON. Uber Verfarbung von Hiihnereiern durch Bas- 



tardierung und uber Nachdauer dieser Farbanderung. Biol. Centbl. 



35:46-63. 1915. 

 WALTHER, AD. R. Uber den Einfluss der Rassenkreuzung auf Gewicht, 



Form, Glanz, und Farbe der Huhnereier. Landw. Jahrb. 46:89-104. 



1914. 

 WEIMER, BERNAL R. A peculiar egg abnormality. Amer. Assn. Instr. 



and Invest. Poul. Husb. Journ. 4:78-79. 1918. 



Memoir 29, The Lecithin Content of Butter and its Possible Relationship to the Fishy Flavor, the second 

 preceding number in this series of publications, was mailed on December 23, 1919. 



