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Tn a study of the subsequent histories of some 500 persons showing a systolic blood-pressure of 170 or over, seen in my consulting practice or in that of my father during the past eight years, it was found that approximately 150 patients were known to have died. For 100 of these, accurate information as to the date of death, the exact cause of death, and the important later symptoms was obtained. The latter data I owe largely to the prompt and cordial cooperation of the family physicians of these patients in answering my somewhat numerous inquiries, and I desire here to express my appreciation of their assistance. A study of this character, of an essentially chronic group of diseases, is possible only in private practice, among patients of the intelligent classes; it is impossible with any hospital material, however large. Many of the problems regarding the causation and development of
Theodore C. Janeway (Sat,) studied this question.