1. Factors influencing hatchability in the domestic fowl;Funk;Missouri Agr. Exp. Sta. Bull.,1934
2. Relation of age of dams to their reproductive ability and to the egg production and viability of their daughters;Hays;Poultry Sci.,1955
3. The inheritance of fertility and hatchability in poultry;Hays;Massachusetts Agr. Exp. Sta. Tech. Bull.,1924
4. Hatchability in Rhode Island Reds as affected by age of parents;Hays;J. Agr. Res.,1949
5. The all-pullet flock vs. the hen flock;Insko;Kentucky Agr. Exp. Sta. Bull.,1951