40 
out. Cord formation, however, is to be recog- 
nized. The capillaries ever^^here through the 
section are congested and contain large cells with 
hyperchromatic nuclei. Some of the larger ves- 
sels are solidly plugged with emboli of such cells. 
In one part of the section cord formation is en- 
tirely lost. Here the nuclei are very chromatic, 
and in places mitotic figures can be made out. 
This can be seen to be occurring in hepatic par- 
enchymal cells and not in duct epithelium. Here 
the capillaries are especially filled with such cells. 
Section of spleen is semi-circular. Over the con- 
vexity there is a thin capsule in whose lymphatic 
tissue there are cells with hyperchromatic nuclei 
like those described above. The rest of the sec- 
tion shows no trace of splenic structure. It con- 
sists of closely-packed necrotic epithelial cells 
with granular cytoplasm and pale or fragmented 
nuclei. Cytoplasms have fused. In the best 
preserved parts of the specimen it can be made 
out that they are like the cells seen in the capsule. 
Ramifying through these cells are sinus-like ves- 
sels filled with red blood cells whose cytoplasm is 
entirely lost (ghost cells). 
2583. Undulated Grass Parrakeet (Melopsittacus un- 
dulatus) : 
Carcinoma simplex of liver. 
The right lobe of the liver is beset with several 
varying-sized yellow gray, well outlined, firm, 
resilient nodules. The left posterior end of the 
right lobe consists of a mass comparable in struc- 
ture to the nodules and continuous with a similar 
mass extending about the pro ventricle ; back of, 
in front of but not involving the spleen, and over- 
lying but not involving the left upper lobe of the 
kidney. 
Microscopically, liver structure can be recognized in 
only a few places and then only by the presence 
