3o8 CLINICAL VETERINARY MEDICINE AND SURGERY. 



near side, bathed in perspiration, and struggled violently and inces- 

 santly. The pupil was dilated, pulse about 60. No hardness of gluteal 

 muscles. One hour after hypodermic injection of morphia was 

 sufficiently quiet for the catheter to be passed ; urine moderate in 

 quantity and normal in colour. 



Diagnosis. — Brain injury, due either to fracture or blood-clot. 



Two hours after first examination the breathing began to assume 

 the Cheyne-Stokes character ; for about twelve seconds respiration was 

 suspended, the pulse meanwhile becoming slower and weaker, all 

 movements of limbs suspended, and the animal appearing in a deep 

 sleep ; pulse about 70. This interval was followed by a feeble inspira- 

 tion, followed by others of increasingly greater force, the sixth being 

 the deepest and most marked. With each the pulse increased in 

 frequency and force, as did movements of the limbs. The third period 

 was marked by decline in amplitude of respirations until the sixth, 

 which was almost imperceptible ; the pulse decreased in strength, the 

 number falling to 70, and all movements gradually ceasing. The second 

 and third periods occupied twelve seconds. 



The number of respirations in each period afterwards lessened, 

 though still occupying the same time. The apnoeal periods increased 

 in duration to nearly twenty seconds. Movement of the fore-limb 

 ceased, and the hind limb moved but slightly. 



Six and a half hours after first examination the respiration assumed 

 the form of a single deep gasp, followed by a deep expiration and one 

 or more shallow movements with a long apnoeal period. Death 

 occurred seven hours after first examination. 



Post-mortem Examination. — All internal organs healthy ; some 

 bruising on the frontal bone. A large blood-clot at the base of the 

 medulla, on the right side, just over origin of the pneumogastric nerve. 

 The whole of the pia mater was much injected. 



Mr. V. W. Evans' case, Joiirn. Coinp. Path, and TJierap., 1895, p. 83- 



TUMOUR OF THE VERTEBRAL COLUMN. 



9. Nine-year-old sheep-dog. Entered hospital on the 17th May, 

 1894. 



A fortnight previously this dog, whose health had always been good, 

 showed difficulty in walking, especially in moving the hind limbs, a 

 difficulty which rapidly increased. One morning the animal was found 

 paralysed in the hind limbs. 



State on Examination. — Paralysis of the hind limbs was complete. 

 If the animal was forced to move the legs were dragged along the 

 ground. Sensation was not abolished, pricks with a pin causing 

 struggling. Respiration and circulation were normal, appetite was 

 good, and no difficulty in defecation or micturition had been noted. 

 Temperature 37*8° C. 



Rectal exploration threw no light on the case, and, in fact, nothing 

 could be detected to account for the paralysis. 



Treatment consisted in administering iodide of potassium in doses 

 of 15 to 30 grains per day. Milk diet. No improvement. Death 

 occurred on the 31st May. 



