History.
—G. A., man, aged 24, with negative family history, had had the usual diseases of childhood, except scarlet fever and diphtheria. Since childhood he had been in perfect health. His present illness began about 4 p. m., Nov. 28, 1918. He had a severe frontal headache, fever and sweats. His symptoms continued during the night, the headache allowing him to get very little rest. The next morning, in addition to the headache, which was about the same, he had severe pains in the calves of the legs. He remained in quarters during the day and the following night. On the morning of November 30 he noticed an eruption on the eyelids and on the trunk, arms and thighs. He was admitted to the base hospital at 8 a. m., November 30. When seen shortly afterward his headache was better, the aching in the legs had disappeared, he had no