1. On the effect of a differential fertility on degeneracy.;Pearson;Biometrika,1909
2. Data on certain factors influencing the fertility and hatching of eggs.;Pearl;Maine Agr. Exp. Station, Bulletin No.,1910
3. Distribution of egg production.;Rice;Cornell Countryman,1915
4. The correlation between sexual maturity and egg production.;Kempster;Mo. Agr. Exp. Sta. Research Bulletin,1925
5. Correlation of sexual maturity to annual egg production.;Hays;Poultry Science,1923