1. Observations on the instruction of blind persons, in a letter to Roberts Vaux, John Vaughan, and Robert Walsh, esquires Author(s): Friedlander, J. R. (Julius Reinhold), 1803-1839 Publication: Philadelphia : Thomas Kite & Co., 1833 Subject(s): Education of Visually DisabledVaux, Roberts, 1786-1836.
2. An address to the public at the first exhibition of the pupils of the Pennsylvania Institution for the Instruction of the Blind, November 21, 1833 Author(s): Friedlander, J. R. (Julius Reinhold), 1803-1839 Publication: Philadelphia : s.n.], 1833 Subject(s): Education of Visually DisabledPennsylvaniaPennsylvania Institution for the Instruction of the Blind.
