1891.] MR. E. T. NEWTON ON TROGONTHERIUM CUVIERI. 247 



thougli lax in consistence — the liver, for example, which was very 

 friable. 



" The anterior moiety of the palate, though, was apparently in a 

 state of degeneration. The fore pad particularly was considerably 

 absorbed and the surface raw and ulcerous-looking. Other parts of 

 the mouth and fauces were healthier, but lined with a superabun- 

 dance of glutinous mucous deposit and exudation. The oesophagus, 

 however, was not affected. 



"About the middle of the stomach towards the great curvature 

 there was a triangular elevated patch, about 3 inches long by 2| 

 inches wide at its broadest part. This cancerous tumour was 

 situated on the top of the elongate mucous ridges ; its more pointed 

 part directed towards the pyloric end of the organ. Its higher 

 wedge-shaped, flattish, abraded surface was of a brownish-yellow 

 tint, intermingled with vascular punctations. This was surrounded 

 by paler-coloured, roughened, nodular excrescences, radiating there- 

 from and filling the depressions alongside the mucous ridges. 



"The tumour was firm and solid in consistence and the subjacent 

 submucous and muscular tissues thickened, condensed, and of a 

 glistening texture when cut into. Excepting pallor of the sur- 

 rounding mucous membrane, and the tumour in question, the 

 stomach otherwise was not diseased. 



"The said tumour bore a strong resemblance to, and doubtless, as 

 microscopic examination showed, was the same as, a cancer of the 

 human stomach. 



" The more immediate cause of death however, may be attributed 

 to endocarditis, the right ventricular cavity being affected. Both 

 on its septal and opposite peripheral wall were layers of soft lymphy 

 exudation. These even extended as rough, flocculent masses upon 

 the fleshy columns and tendinous cords. There was no deposit in 

 the other cavities of the heart or large arteries. Under the micro- 

 scope the cardiac exudation proved not to be cancerous in nature. 



" Judging from the pathological conditions met with, the course 

 of the animal's illness is pretty evident. Whatsoever may have 

 originated the cancer is obscure ; but, once set up, the only positive 

 symptom of serious ailment was the gradual emaciation of the body, 

 in spice of a goodly consumption of food. With defective nutrition 

 and the wasting of tissues arose the tendency to blood impoverish- 

 ment, resulting in the diseased condition of the heart, which was 

 quickly fatal. 



"Cancer of the stomach in Solipeds and Ruminants is rare, 

 though occasional instances are recorded in veterinary publications. 

 Its occurrence in the Rhinoceros, therefore,, is a noteworthy fact, as 

 taken in connection with its belonging to the Perissodactyla — a 

 limited living group, whereof the Horse tribe represent the domes- 

 ticated and the Tapir and Rhinoceros the wild examples." 



Mr. E. T. Newton read a paper on a Skull of Trogontherii 



