1. Connection of occupation with longevity Author(s): Jarvis, Edward, 1803-1884 Publication: [United States : s.n., 1857] Subject(s): LongevityOccupationsMassachusettsRhode IslandNew York
2. The longevity of brain-workers Author(s): Beard, George M. (George Miller), 1839-1883 Publication: [New York? : s.n., 1873?] Subject(s): LongevityOccupations
