1. Lighting of poultry houses uneconomical for hens over one year of age;Alder;Utah Agr. Expt. Sta., Farm and Home Sci.,1943
2. Relationship between the number and weight of eggs and body weight of fowls during the first three years of production;Atwood;West Virginia Agr. Expt. Sta. Bull.,1930
3. The influence of illumination upon the laying activity of hens;Bartsch;Arch. Geflügelk.,1937
4. Temperature and its effect on egg size in the domestic fowl;Bennion;Poultry Sci.,1933
5. Environmental physiology with special reference to domestic animals;Brody;Missouri Agr. Exp. Sta. Res. Bull.,1948