1. The effect of various solutions on the keeping quality of eggs;Bryant;J. of Agr. Res.,1934
2. Effects of cod liver oil and ultra-violet irradiation, as influenced by oyster shell, in the diet of confined laying hens;Hendricks;J. Agr. Res.,1931
3. The strength of egg shell;Herroste;Sci. Amer.,1916
4. Relationship between breaking strength and percent of egg shell;Morgan;Poultry Science,1932