Benjamin Rush (Philadelphia) letter to unidentified, 1802 February 15 1 Leaves Box 2, Folder 3 Bookmark Abstract Or Scope Rush records the benefits of using Kinepox over variolation to inoculate against smallpox. view more view less Collection Context David M. Rubenstein Rare Book and Manuscript Library Benjamin and Julia Stockton Rush papers, bulk 1766-1845 and undatedLetters, 1777-1824