All books are modern reprints of originals.
Large books are spiral or coil bound, and lay flat when open.
All information contained within these texts is for historical and educational purposes only. None of the information should be used in place of professional medical assistance. Titles written in bold or italics are standards to the Electrotherapy industry. The Marvel Violet Ray Book of Instructions - Eastern Laboratories, Inc. You Must Always Hold Handle at End Nearest Cord - Renulife Electric Co.