56 
Tumors. 
The occurrence of neoplasms in wild animals is a very- 
interesting question to us, and this interest is increased 
by the fact that we have observed more tumors here than 
can be found in all other records added together. I have 
collected our observations in a paper form and this will 
shortly be published. It shows that tumors occurred in 
34 or 1.34 per cent, of 2533 autopsies in the ten years of 
this laboratory's existence. The orders chiefly affected 
were carnivora, ungulata and psittaci, while primateSj 
lemur es and anseres failed to show any tumors. Our 
statistics do not, however, permit any conclusions as to 
the effect of age, sex or length of stay in the garden. 
The epithelial tumors are more common among the ani- 
mals bred in the wild, while sarcomata are commonest 
among the captive born. The tumors among the ani- 
mals posted this year are as follows: — 
2249. Undulated Grass Parrakeet {Melopsittacus un- 
dulatus) : 
Papillary adenoma of kidney. 
2333. Woodchuck {Arctomys monax) : 
Adenoma simplex of liver. 
2408. Gray Squirrel (Sciurus carolinensis pennsylva- 
nicus) : 
Hypernephroma of kidney. 
2478. Undulated Grass Parrakeet (Melopsittacus un- 
dulatus) : 
Adenocarcinoma of oviduct. 
2481. Red-shouldered Buzzard {Buteo lineatus): 
Mixed cell sarcoma of lumbar muscles (retroperi- 
toneal) . 
2515. Isabelline Gazelle {Gazelle isabella) : 
Osteofibroma of superior maxilla. 
2515. Clouded Leopard {Felis nebulosa) : 
Epithelioma of pleura. 
2535. California Hair Seal {Zalophus calif or nianus) : 
Hypernephroma of adrenal. 
