Practical electro-therapeutics and X-ray therapy : with chapters on phototherapy, X-ray in eye surgery, X-ray in dentistry, and medico-legal aspect of the X-ray
A medical textbook on electrotherapy and X-ray treatment by James Madison Martin, published in St. Louis by C.V. Mosby in 1912 for practicing physicians, dentists, and eye surgeons. The line drawings diagram circuits, switches, electrodes, horseshoe magnets, and rheostats in flat black hatching on plain grounds, giving designers clean apparatus schematics and lettered wiring figures.
