1. Fecundity, fertility, sterility, and allied topics Author(s): Duncan, J. Matthews (James Matthews), 1826-1890 Publication: New York : Wood, 1868 Subject(s): FertilityInfertilityFamily Characteristics
2. Fecundity, fertility, sterility, and allied topics Author(s): Duncan, J. Matthews (James Matthews), 1826-1890 Publication: New York : Wood, 1871 Subject(s): FertilityInfertilityFamily Characteristics
