Late Assist~,ut Surgeon to the Richmond Hospital. [Read in the Section of Medicine, December lS, 1901.] T~. case from which I obtained the specimen (produced) was that of a labourer, aged thirty-five, out of employment, who was found dead in the street. From the evidence at the inquest he appeared never to have complained up to the time of the fatal seizure. The body was that of a poorly nourished man, presenting no scars or other traces of ulceration ; both lungs were emphysematous, with a

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... e quantity of muce-pus in the bronchial tubes. There were no consolidated areas nor cicatrices to be observed. The pericardium was distended; on opening which about a pint of fluid blood and clots pom~d out. The surface of the light ventricle was covered by recent lymph which could easily be detached, and presented the fluffy appearance which you can still see on the specimen. Before removing the heart I sought in vain for the source of the h~emorrhage~ nor was I more successful afterwards. On opening the heart it is noticed that the valves are healthy, but almost the entire anterior wall of the right ventricle is composed of fat. The absence of muscular fibre is very strildng when you compare it with the fairly normal left ventricle. In the right ventricle there was a clot foi~ned at time of death. The auricles presented nothing abnormal, and the coronary arteries were permeable.