In this seminal work on the bacterial disease diphtheria, Robert Hunter Semple provides a detailed clinical account of the symptoms, transmission, and treatment of the disease. Semple's findings were instrumental in the development of the diphtheria antitoxin, which saved countless lives in the early 20th century. This edition, with an introduction by a leading expert in the history of medicine, is a fascinating window into the early days of bacteriology.

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