1. On the relative influence of city and country life, on morality, health, fecundity, longevity and mortality Author(s): Hough, John Stockton, 1845-1900, author Publication: [Philadelphia?] : [publisher not identified], [1874?] Subject(s): Urban PopulationRural PopulationFertilityMortalityLongevityUnited States
2. Remarks before the Ohio State Medical Society, 1871, on the special report of the Committee on Sanitary Science Author(s): McIlvaine, R. R. (Robert R.), author Publication: [Ohio?] : [publisher not identified], [1871?] Subject(s): LongevityMarriageConsanguinityUnited States