Heiden, Switzerland, situated 2,500 feet above the sea level, overlooking the beautiful Lake Constance and the five cantons bordering it, formerly had the reputation of being a whey cure. It became especially popular through the annual visits of Albrecht Von Graefe, the so-called "Father of Ophthalmology," who sought rest and recreation among its peaceful hills. A horde of patients and medical disciples followed in his wake, so that it soon became the Mecca for oculists and afflicted ones seeking their aid. Its excellent location, its salubrious climate and its hotel facilities induced Dr. Frenkel to select it for his field of work during the summer.
During a seven weeks' sojourn at Heiden this summer, I had an opportunity, through the courtesy extended me by Dr. Frenkel, of observing daily his new method of treating locomotor ataxia due to tabes dorsalis. So excellent were some of the results obtained under my