MISCELLANEOUS INFECTIONS 611 
number of large lymph cells. Typical microscopical 
changes are as follows, quoted from one of the autopsy 
protocols : The lung showed moderate congestion with 
here and there a little epithelial swelling and a mild bron- 
chitis and peribronchitis. The type of bronchitis is 
infiltrative rather than catarrhal. The heart muscle 
showed granular degeneration of the fibres with breaking 
up or irregularity of the strise. Some increase in inter- 
fibrillar nuclei and especially those of the capillaries. 
There is moderate congestion. Epi- and endocardia are 
slightly raised as if by edema. Here and there slight 
fragmentation of fibres. The liver cells are granular 
and some show fat droplets. There is moderate conges- 
tion and more than the normal number of round nuclei 
between the columns. Here and there are focal necroses 
of varying sizes without circumferential reaction. Here 
and there are also some small collections of round cells 
near to which the liver nuclei are large and show attempts 
at regeneration. In these collections but not in the 
necroses, bacillary forms may be found. There is no 
reaction on the part of the bile ducts. The larger vessels 
are thrombotic, and in one section a thromboangiitis was 
found. One stretch of early plastic perihepatitis was 
found. The kidney showed slight granularity with slight 
cloudy swelling of the epithelium. The nuclei of the 
glomeruli are prominent. There is moderate congestion. 
The spleen showed distinct large lymph cell hyperplasia 
with relative inconspicuousness of small round cells. 
The follicles are very diffuse, their centres filled with 
large lymph cells. The cords are hyperplastic and the 
sinuses compressed. Moderate congestion; no unusual 
blood destruction; one area of hyaline necroses found. 
The proventricle and gizzard are negative with the prob- 
able exception of active desquamation on the surface of 
the former. The outer coats of the duodenum are nega- 
tive except for slight richness in nuclei. The deep mucosa 
is very rich in nuclei and red blood cells. The outer parts 
