Hatter's Shakes

Mercurial tremor; Workers in mercury, such as water-gilders, looking-glass makers, and the makers of barometers and thermometers, are apt to suffer from a peculiar form of shaking palsy, known as the trembles, or mercurial tremor This disease affects most frequently those who are exposed to mercurial fumes The victim is affected with tremors when an endeavor is made to exert the muscles, so that he is unable, for instance, to convey a glass of water to the lips steadily, and when he walks he breaks into a dancing trot