464 CLINICAL VETERINARY MEDICINE AND SURGERY. 



Rectal exploration revealed nothing. The sublumbar lymphatic 

 glands were normal, and no swelling was discovered in the posterior 

 portion of the abdominal cavity or in the pelvis. 



The great functions were not particularly disturbed. Had it not 

 been for the cutaneous and subcutaneous lesions, the animal might 

 have been thought in good health. The rectal temperature was 

 39-5° C. The urine was of normal colour, contained no sugar or bile 

 pigments, but was slightly albuminous (about jh grains of albumen 

 per pint). There was neither undue frequence of urination nor true 

 polyuria. Examination of the blood showed no modification in the 

 number or appearance of the blood-corpuscles. 



One of the subcutaneous tumours was excised for histological exa- 

 mination. The structure was that of a sarcoma. 



Treatment. — Iodide of potassium in daily doses of 4 drachms. 

 Some days later the lymphatics on the left shoulder became inflamed 

 in the same way as had those on the right, but the swelling gradually 

 disappeared. The animal was left for a month in hospital. During 

 the last fortnight the daily dose of potassium iodide was increased to 

 5 drachms. No appreciable improvement occurred. 



On May 6th the owner withdrew the horse to try it at slow work, 

 but again brought it here on June 5th in a very grave condition. The 

 appetite had diminished and the animal grown extremely weak ; the 

 slightest effort caused its breathing to become so embarrassed as to 

 bring it to a standstill. 



We again examined it. It appeared extremely depressed and 

 feeble. The head was rested on the manger ; the mucous membranes 

 were pale, the skin dry, and the coat staring. The respirations were 

 36; pulsations 57 per minute; rectal temperature 39'3^ C. The 

 accelerated respiration and absence of fever caused us to suspect inva- 

 sion of the lung by the tumours. On auscultation a respiratory 

 murmur was noted throughout the entire area of both lobes. There 

 was a little partial dulness in the lower regions of the thorax. 



The lymphatic enlargements in the flank had nearly disappeared, 

 but the others remained almost as marked as before. The pre-pectoral 

 and pre-scapular glands were large, hard, and slightly sensitive on 

 pressure. 



The left surface of the neck, over the region corresponding to the 

 mastoido-humeralis (levator humeri) and of the levator anguli scapulae 

 was swollen and sensitive, and the neck slightly turned to the right, as 

 in luxation of the neck. 



Finally, one of the fore-limbs was frequently extended and placed 

 under the vertical line of the body, giving the animal a certain appear- 

 ance of " immobilite " (dropsy of the lateral ventricle). 



Some days later the horse was exercised at a trot. It had scarcely 

 gone a few hundred yards w'hen increasing difficulty in respiration and 

 a loud roaring noise were noticed. Being threatened with the whip, it 

 continued trotting for about five minutes, and then stopped for want of 

 breath. Sweating was abundant, respirations very rapid (70 to 80 per 

 minute), expiration double, and auscultation revealed a respiratory 

 murmur over the entire area of both pulmonar}' lobes. 



