1. Does excision of the larynx tend to the prolongation of life: a paper read before the College of Physicians of Philadelphia, April 4, 1883 Author(s): Cohen, J. Solis (Jacob Solis), 1838-1927 Publication: Philadelphia : Collins, 1883 Subject(s): LaryngectomyLife Expectancy
2. Ancient and modern hygiene contrasted: the influence of civilization on the duration of life : a discourse at the annual meeting, Boston, October 1876 Author(s): Lewis, Charlton T. (Charlton Thomas), 1834-1904 Publication: [Boston? : s.n., 1876?] Subject(s): HygieneLife Expectancy
3. Observations on the progress of population, and the probabilities of the duration of human life, in the United States of America: read before the American Philosophical Society held at Philadelphia, for Promoting Useful Knowledge Author(s): Barton, William, 1754-1817 Publication: [Philadelphia] R. Aitken & Son, MDCCXCI [1791] Subject(s): Life ExpectancyMortalityUnited States
