Books by Philadelphia Social Science Association
The organization of local boar
The organization of local boards of health in Pennsylvania
Memoir of Isaac Ray, M.D., LL.
Memoir of Isaac Ray, M.D., LL.D.
Nominations for public office
Nominations for public office
A plea for a state board of he
A plea for a state board of health
Papers on Building Association
Papers on Building Associations
On the relative influence of c
On the relative influence of city and country life, on morality, health, fecundity, longevity and mortality