Distinct splanchnic engorgement is evident as soon as the peritoneal cavity is opened. The liver extends below the costal margin and is dark in color, but otherwise the abdominal cavity presents nothing characteristic of the disease. The diaphragm does not extend as high as usual, and the pleural cavity almost invariably contains an excess of fluid. Usually the quantity is small, but, on the other hand, it may be considerable, and in twenty-one of the forty-four cases the fluid exceeded one hundred cubic centimeters. The turgidity of the mediastinal tissues varies somewhat in degree (27). Generally the pericardial sac is smooth and glistening on both visceral and parietal surfaces; the pericardial fluid is not materially changed. Frequently (seventy per cent) there is dilatation of the right side of the heart (138, 141, 157), but aside from an occasional small endocardial or subepicardial hemorrhage (90, 108, 156), there are no lesions of consequence in the heart attributable to this disease[5] (162). [Illustration: FIG. XIV. AUTOPSY NO. 96. LEFT LUNG. NOTE ITS SIZE AND THE PATCHY CONSOLIDATION. ] [Illustration: FIG. XV. AUTOPSY NO. 149. ILLUSTRATES ONE OF THE MOST STRIKING EARLY PULMONARY LESIONS; THE DILATATION OF THE TERMINAL BRONCHIOLES AND THE HYALINIZATION OF THEIR EPITHELIUM. COMPARE FIGURE XVI. ] [Illustration: FIG. XVII. AUTOPSY NO. 133. HYALINE THROMBI AND NECROSIS OF THE ALVEOLAR WALL. COMPARE FIGURES V, XV, XVIII, XIX, XXXI AND XXXII. ]