A large proportion of the sick were drafted to Château d'Oex, or Mürren, as completely cured, after a residence at Leysin from six months to a year. The percentage of incurables was small, and there is no doubt in my mind that the treatment, as practised in the Swiss Sanatoria, is of immense advantage to those not far advanced in the disease. As regards an important branch of treatment, viz., that of dentistry, provision was made by the "Médecin d'Armée" as part of the ordinary medical work. This, however, owing to the strain imposed by the mobilization of the Swiss Army, proved totally inadequate, and it was a great relief to me when, in June, 1916, I received a letter from Mr. Joseph A. Woods, M.D.S., L.D.S., offering me his personal service in Switzerland. He wrote to me as follows:— "My proposition would be to go to some suitable centre for, say, one month. I would take all necessary instruments and supplies and would attend to any Interned who would care and need to have such treatment. The whole service would be entirely gratuitous, whether to officers or men, and, as far as possible, I would, in addition to operative treatment, fit artificial dentures or make splints or other appliances in any cases of jaw injuries. I would be personally responsible for the expenses. I should, of course, accept any regulations or conditions which may be in force and would loyally fall in with them." This generous proposition naturally commended itself to me, and with the approval of the "Médecin d'Armée," and the sanction of the War Office, Mr. Woods was appointed Head Dental Surgeon to the British Interned. He immediately closed down his private practice at Liverpool, and exactly three weeks later reached Berne, bringing with him a large stock of instruments and general dental supplies. It was a good thing he did so, for all such stocks had run very low in Switzerland, and the problem of supply has since then become increasingly difficult. Mr. Woods, at my request, made Mürren his centre, and within a few days most of the officers and 200 men were on his register as prospective patients. His original offer to remain one month was extended to three, and then as the work increased, owing to fresh arrivals from Germany, he decided, on my representations, to remain for a much longer period, and in fact only left the country when the camps were closed down on the repatriation of all Ps. of W. in the autumn of 1918, having thus completed two years and four months voluntary service with British troops in Switzerland. The camps at Interlaken (where he fitted up an additional surgery), Gunten, Meiringen, Seebourg, Leysin and Château d'Oex, also came within his purview at one time or another. Leysin and Château d'Oex were subsequently, in August, 1917, placed in dental charge of Mr. W. I. Law, L.D.S., where the work was almost as heavy as at Mürren. Mr. Law's expenses were defrayed by the North-Midland Branch of the British Dental