Minneapolis, Minn., Dec. 26, 1898.
To the Editor:
—Mr. O. H. P., 34 years of age, a very intelligent mechanic, consulted me June 9, 1892, complaining that he had developed in connection with a series of severe colds in the head, a hereditary tendency to shaking of the head. Mr. P. is a man of fine physique and in good general health, which has continued to the present writing, six and a half years. The family history is as follows: His mother died of internal cancer, in her 63d year. His two brothers, his father, two paternal uncles and four paternal aunts (with one or two exceptions), his great-grandfather and the latter's brothers and sisters (with one or two exceptions), farther back he has no knowledge, all began to shake between the ages of 30 and 40 years. One sister of Mr. P. had temporary relief for about one year,