A man in service ten months, under strong excitement and at times under protracted shell fire, complained of palpitation, insomnia, dizziness, and dyspnoea. Hospital notes showed that the left lobe of the thyroid was somewhat enlarged. Before the war his neck could not have been very thick; he had served his year out without difficulty. His mother is said to have suffered at one time from thick neck. According to the patient, he had never suffered with heart trouble. Heart not enlarged; blowing first sound over the apex. Graefe, Stellwag and Möbius signs negative. Heart rapid, not irregular; pulse strong. There was fine tremor of the hands, as well as a tremor of the tongue. Knee-jerks increased. The patient was at first sleepless and excited, but after three weeks in bed the heart murmur had disappeared. After three months, he was ordered to _Ersatz_ with the left side of the neck measuring 20 as against 18 cm. on the right. There was a soft pulsating swelling of the thyroid. First sound over apex still impure; heart action now regular; pulse 64; blood pressure 120 Riva-Rocci; after test exercises, slight dyspnoea. No cyanosis. The outstretched hands were no longer very tremulous. The knee-jerks were still increased. The man had begun to sleep well. His neck was apparently much diminished in girth. Here then was a case of Graves’ disease of acute development, brought out by nervous stress and excitement as well as by 10 months of war work and exposure to shell fire,--with approximate recovery after three months of rest. Graves’ disease, forme fruste. =Case 145.= (BABONNEIX AND CÉLOS, June, 1917.)