1. Elements of the theory and practice of physic: designed for the use of students Author(s): Gregory, George, 1790-1853 Publication: New-York : Sherman, 1830 Subject(s): Clinical Medicine
2. Gregory on vaccination: republished with notes Author(s): Gregory, George, 1790-1853 Publication: Philadelphia : Printed by William F. Geddes, 1835 Subject(s): Smallpox -- prevention & controlVaccination