12 MASS. EXPERIMENT STATION BULLETIN 384 



REFERENCES 



Byerly, T. C. 1934. Some Factors Affecting the Length of the Incubation Period. 

 Rep. Fifth World's Poultry Cong. pp. 373-379. 



Dove, W. F. 1935. Report at Eighth Annual Poultry Breeders' School. 



Hays, F. A., and Ruby Sanborn. 1929. Rate of Growth in Rhode Island Reds. 

 Mass. Agr. Exp. Sta. Bui. 259. 



Hays, F. A. 1939. The Significance of Body Weight in Breeding for Egg Produc- 

 tion. Mass. Agr. Exp. Sta. Bui. 364. 



Huggins, R. A., and Sara E. Huggins. 1941. Possible Factors Controlling Length 

 of Incubation in Birds. Amer. Nat. 75 (758):282-285. 



McNally, E. H., and T. C. Byerly. 1936. Variation in the Development of 

 Embryos of Hen's Eggs. Poultry Sci. 15:280-283. 



Publication of this Document Approved by Commission on Administration and Finance 

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