1. Illustrated catalogue of electro-medical instruments, manufactured and sold Author(s): Hall, Thomas. Publication: Boston, Mass. : [T. Hall], 1859 Subject(s): Electric Stimulation Therapy -- instrumentation
2. Illustrated catalogue of electro-medical instruments, manufactured and sold Author(s): Hall, Thomas. Publication: Boston, Mass. : [T. Hall], 1864 Subject(s): Electric Stimulation Therapy -- instrumentation
