82 
THOMPSON YATES AND JOHNSTON LABORATORIES REPORT 
long and one-and-a-half broad), reddish in colour on section. Pancreas normal. 
Suprarenals congested. The bone marrow of the femur was yellowish in colour, and 
showed several reddish islets. 
Histology 
The microscopical examination of the heart showed an inflammation of 
the epicardium of some standing. The myocardium showed patches of infiltration 
around its vessels, which were more numerous in the superficial parts, the muscle 
fibres being partially destroyed m their neighbourhood. The infiltration consisted ot 
lymphocytes and numerous cells with abundant protoplasm and small round nuclei. 
The muscle fibres in places were fragmented. Haemorrhages occurred all through the 
muscle. 
The lungs presented the appearance of catarrhal pneumonia ; the alveoli were 
filled with blood cells and exudation, the vessels in the consolidated regions congested, 
and contained many white cells. The mucous membrane of the right bronchus was 
•desquamated, and in the lumen was a purulent exudate. The lung structure had dis- 
appeared in some places, being replaced by exudation containing necrotic particles. 
The left lung showed similar changes, but to a less extent. Its bronchi contained a fair 
number of eosinophile cells. The lung tissue and the bronchi were filled with numerous 
bacteria and cocci, of which many stained by Gram's method. 
The sections of the liver showed congestion, which was more marked in the 
periphery than in the centre. The connective tissue around the vessels was increased 
and infiltrated with lymphocytes. The liver cells were atrophied and filled with fat 
droplets and their nuclei had disappeared. 
The section of the kidneys showed cloudy swelling. In its congested vessels are 
many white corpuscles. 
The spleen showed considerable alterations of its structure. There was a striking 
congestion of the whole organ. In the section stained with polychrome methylene 
blue, stained areas of lighter appearance with a few nuclei in them and darker stained 
ones consisting of lymphocytes occurred. The light stained areas were the congested 
parts. The endothelium of the arteries was proliferated. The follicles were hyper- 
plastic, and from them processes extended into the pulp tissue around. The cellular 
elements were as follows : — Normal spleen cells, numerous phagocytes, giant cells 
with a polymorphus nuclei and large protoplasmic bodies, and, in addition, a good 
number of large cells with peripherally placed nucleus and very vacuolic protoplasm. 
Iron containing pigment, both intracellular and free, was found all through the organ. 
The lymphatic glands presented the same microscopical appearances as in the other 
cases, but the changes were not so extensive. Besides congestion, some of the glands 
showed the same sinus formation as has been described above. These sinuses were 
filled with red blood corpuscles and large phagocytic cells. Glands with this sinus 
