TUMOUR OF THE RIGHT HEiAHSPHERE OF THE BRAIN. 30I 



The lips and tongue were not paralysed. Mastication and de- 

 glutition were normal, and the appetite was perfectly good. General 

 sensation was diminished, except in the region of the head and limbs. 



The animal was moderately nourished. Temperature 37*5° C. ; 

 pulse 56 ; respirations 14. 



During the few days the horse was under observation the symptoms 

 remained without notable change ; there was no vertigo or excitement. 

 On the evening before the animal was slaughtered it fell on the right 

 side, and was unable to rise again. 



Autopsy. — The lesions were confined to the brain, the surface of 

 which, however, showed nothing abnormal. On the inner surface of 

 the right hemisphere, in the white substance, was a large softened area 

 occupying almost all the upper part of the ventricle ; it measured 

 3j inches from front to back, about 2 inches transversely, and about 

 I to I of an inch in thickness, depending on the spot measured. It 

 was not clearly circumscribed, and penetrated in various directions into 

 the grey substance. Throughout its entire extent the nervous sub- 

 stance was of a reddish-grey tint, resembled jelly, and of semi-liquid 

 consistence ; the surface of sections showed a few small hsemorrhagic 

 spots. 



Studied after hardening in chromic acid, the morbid tissue seemed 

 formed of cells with large nuclei and a small amount of protoplasm, 

 isolated or united in little groups, and provided with long processes 

 forming a kind of reticulum, the meshes of which contained round- 

 cells. The growth was, therefore, not produced by degeneration, as we 

 had at first supposed, but was a true tumour, the particular form being 

 that known as glioma. 



TUMOUR OF THE RIGHT HEMISPHERE OF THE BRAIN. 

 3. A seven-year-old greyhound bitch, left in hospital 7th October, 



Like most of such animals, this bitch was very irritable. As testified 

 by her own owner, in whose possession she had always been, her health 

 had until the commencement of 1892 been uniformly good. At that 

 time a tumour had been discovered in the mammary gland, and had 

 been removed by a veterinary surgeon. The operation wound healed 

 rapidly. During October another tumour appeared in the gland, and 

 in July, 1893, was removed. The wound closed rapidly. 



Some weeks later the animal showed a hoarse, dry cough, which 

 occurred in prolonged attacks, and was followed by attempts at 

 vomiting : the attacks became progressively more frequent. The patient 

 soon lost breath when walking, and was regarded as asthmatic. During 

 August and September she was taken to the sea-side by her owner. 

 There, we were told, her condition improved, until one day during a 

 walk in the country she came too near a cow, and began to run, 

 yelping loudly ; suddenly she stopped, her limbs became stiff, she fell 

 senseless, and remained in that condition for twenty minutes. Although 

 no trace of injury could be seen on the surface of the body, it was 

 thought that she had been kicked. Having been taken home, she 



