First published by the Cambridge University Press in 1911, this volume represents the result of three years of research into the subject of diarrhoea, which was one of the chief causes of child mortality in Great Britain at the turn of the century. It begins with a statistical study of age incidence, prevalence, and fatality of the condition and then in successive chapters examines clinical features, immunity, social relations, sanitation, food, and epidemiological features. The final chapters touch on possible methods of prevention and treatment and offer a general summary of conclusions.