Ray’s Arithmetic, part third : being the author’s Eclectic arithmetic, on the inductive and analytic methods of instruction designed for common schools and academies thoroughly rev., enl. and improved / by Joseph Ray., 660 - Chandler Collection no. 211, Volume: Archives Chandler Collection no. 211. Clarion University Archives.

Ray’s Arithmetic, part third : being the author’s Eclectic arithmetic, on the inductive and analytic methods of instruction designed for common schools and academies thoroughly rev., enl. and improved / by Joseph Ray., 660 - Chandler Collection no. 211, Volume: Archives Chandler Collection no. 211. Clarion University Archives. http://as-clarion.klnpa.org/repositories/2/resources/1190 Accessed January 14, 2026.