Die Parasiten der Infectionskrankheiten. 172 
rarely found in it, but coagula of granular fibrin (aa Plate 3) en- 
closing débris of blood corpuscles and dark crimson granules and 
molded into casts of the tubuli uriniferi, were of frequent occur- 
rence. The dark red coloring matter of the broken-down blood 
discs was diffused through the urine. 
5) The Peritoneal Cavity contained a yellow liquid which 
owed its tint to a diffused coloration and was spontaneously coa- 
gulable on exposure to the air. In one case, where a few drops 
of blood had been accidentally mingled with it, coagulation con- 
tinued for two days and until putrefaction commenced. A fresh 
gelatinous clot formed in the liquid as often as it was poured 
from the coagulum previously formed. This was but one among 
many interesting physiological phenomena revealed by study of 
the disease. 
Il. The solids. 
1) The Liver. — The liver was invariably enlarged and con- 
gested, its surface marked by yellow patches, or of an uniform 
yellowish discoloration. The surface of section presented yellow 
spots on a ground of deep congestion. Under a low magnifying 
power, a thin section presented the appearance represented in 
Plate N°. 4. A translucent center of bright yellow was seen in 
each acinus, a, Plate 4, surrounded by an opaque zone, b, Plate 4, 
of mingled fatty degeneration and yellow injection. Surrounding 
each acinus was the fibrous striation of the capsule of Glisson, c, 
Plate 4. Under a power of five hundred diameters, the yellow co- 
lor of the center of each lobule was seen to be due to the reple- 
tion of the ultimate biliary radicles, forming a regular net-work 
between the liver cells, with bright yellow secretion. About this, 
and shading into it, was a zone of fatty degeneration, which affec- 
ted the superficial or portal portion of each lobule. This fatty 
de generation was sufficiently marked to render the liver cells opa- 
que, but tho nucleus was still visible in many of them. The in- 
jection of the reticulum of bile ducts was the most interesting 
phenomenon presented by the disease, not only on account of the 
opportunity it afforded of studying an anatomical structure, which 
has given rise to much discussion among histologists, and concer- 
ning which great difference of opinion already exists, and on 
account of the beauty and perfection of the anatomical demonstra- 
tion, but owing to the important relation which this phenomenon 
II, 1. 2 
