1. A study of the influence of the high frequency electric current, using the so-called "auto condensation" method of application, is recorded. This comprises blood and urine studies, together with the basal metabolism records of groups of normal controls and of arthritic subjects.

2. Various effects are observed, which are apparently ascribable to the influence of the electrical stimulation, and which disappear with the cessation of its use. Cases showing an acute condition constitute an exception to the above, the improvement being apparently progressive and more lasting.

3. Among these changes may be noted: (A) A diminution in the nitrogenous constituents of the blood. (B) An increase in the nitrogen and sulphur of the urine. (C) The general elimination by the kidneys reflects the changes shown by nitrogen and sulphur. The Phthalein test is an exception, no changes being noted.

4. The basal metabolic rate decreases during the treatment period, and only in the control group does it return to the pre-treatment level.

5. The blood sugar concentrations in the arthritic group show changes proportional to their initial level.

6. Certain speculations are offered in possible explanation of the observed phenomena.