1. The philosophy of natural history Author(s): Smellie, William, 1740-1795 Publication: Boston : Reynolds, 1844 Subject(s): Natural HistoryBiologyPhilosophy
2. Lecture, introductory to the course on the theory and practice of medicine: in the Medical Department of Pennsylvania College, session of 1846-47 Author(s): Darrach, William, 1796-1865 Publication: Philadelphia : King & Baird, Printers ..., 1846 Subject(s): BiologyReligion and Science