I previously reported1a series of cases in which postoperative, nondiabetic acidosis was successfully treated with a combination of hypodermic injections of insulin and the intravenous administration of glucose solution. One of the statements in this article was that "an opportunity is awaited to use this method of treatment in a series of patients suffering from the acidosis of toxemic vomiting of pregnancy." Thus far, the opportunity has occurred of treating only three patients2with severe, toxemic vomiting of pregnancy, but the results have been so striking, and parallel so exactly the results in all patients with postoperative acidosis, similarly treated, that they seem sufficiently important to report. REPORT OF CASES Case 1. —Mrs. H., aged 18, admitted to the service of Dr. R. W. Roethke, Aug. 15, 1923, was about three months pregnant, and had been vomiting practically everything she had eaten for the last three weeks.