17 
Neoplasms found during the year. 
1059. Red shouldered Parrakeet. 
Large round cell Sarcoma of the intraperitoneum. There could be some 
question of this since the size of the tumor and cells makes carcinoma possible. 
From the nuclei of the cells it seems that sarcoma is the correct determination. 
The organ is not demonstrable. 
1082. Dingo. 
Carcinoma probably from end ducts and acini of parotid gland. The 
malignant area is small. One of the pictures is exactly that seen in 1124. 
The surrounding tissue seems to have undergone some sarcomatous and 
myxamatous change, and is at least the seat of chronic inflammatory proces-ses. 
1124. Dingo. 
An early carcinoma arising from the radicles of the duct of a salivary gland. 
The acinus cells are proliferating, probably from chronic inflammation, and are 
perhaps about to take on malignant change, very similar to 1082. 
1153. Gray Wolf. 
Alveolar angio-sarcoma. This animal presented a malignant tumor of the 
thyroid which consisted of two large lateral hemispheres and a small mass 
between the lower poles of these halves. The tumor was cystic and the wall 
of the cysts were fibrous with plugs of cellular tissue in them. The cellular 
structure consisted of small faceted cells with small deeply staining nuclei. 
The interstitial tissue was hyaline and poor in cells, many of which were 
embryonal in character. The cells were arranged in alveoli, occasionally quite 
■compact but usually loosely grouped. There were many small degenerated 
areas filled with hyaline matter or blood. The origin of the tumor is not clear. 
The type of cells approaches that of the parathyroid more than that of the 
thyroid. No normal tissue was discoverable. Diagnosis of small cell car- 
cinoma of parathyroid was considered, but alveolar angio-sarcoma seems 
more tenable. 
1223. Black Lemur. 
A noteworthy histological change was'observed in a slight swelling in the 
supracervical musculature of the uterine body. An early fibromyomatous 
metamorphosis was encountered in the great tortuosity of the muscle bundles, 
lengthening of fibres and evidences of great flexibility of the nuclei. 
123S. Roseate Cockatoo. 
This bird had several large lipomata, three of which lay beneath the skin of 
the abdomen, disfiguring the shape, but apparently quite benign in character. 
Bird was killed. 
1225. Dorcas Goat. 
Lymphosarcoma. The growth in this animal consisted of a solid, almost 
homogeneous mass, the size of a fist, in the superior and posterior mediastina. 
Some of the anthracosis from the affected glands could be seen on cross section. 
Microscopically the tumor consists of a densely packed mass of cells with 
very meagre retaining tissue dividing it into bundles or very large alveoli. 
This does not present the appearance of an alveolar tumor. The cells are 
about half-way between the small and large sarcoma types, while their nucleus 
