204 VETERINAEY TOXICOLOGY 



It was kept on its feet, until unyoked, with difficulty ; each 

 breath gave a loud sound from the larynx. There was 

 profuse sweating ; quick, irregular, and intermittent pulse ; 

 increased impulse of the heart ; venous pulsations ; normal 

 temperature ; and a vibration over the region of the larynx. 

 After about five minutes the symptoms disappeared, the 

 animal seemed well, and began to eat hay. 



The horses had been having a mixture containing 20 per 

 cent, of Indian pea meal. Some had it boiled, others wetted, 

 and McCall noticed that only those which had had unboiled 

 meal were affected. 



McCall experimentally fed an old but sound cart 

 mare, whose pulse rose in eleven days from 52 to 84, 

 temperature normal ; but after exercise the pulse was 

 130, and there was vibration over the larynx. Later 

 vesicles and inflamed spots formed in the mouth, and there 

 was extensive loss of hair, not caused by parasites. 



G. E. King** observes similar symptoms with gritting 

 of teeth, frothing, and convulsive movements of the eyes, 

 recalling epilepsy, in cart horses. 



J. P. Slidders® and Joseph Abson* record the effects 

 of the dog-tooth pea on horses and ponies. The dog-tooth 

 pea is much larger and whiter than the mutter pea. The 

 symptoms observed were thick wind, a staggering gait, 

 weakness of hind quarters, and general signs of intoxica- 

 tion were noticed, and sudden violent attacks of laryngeal 

 paralysis and dyspnoea, during which there was palpita- 

 tion, frothing, tongue protruded, eyes staring, bluish tint 

 of buccal membranes, and palpitations. The paroxysms 

 sometimes proved fatal, otherwise there would be a speedy 

 temporary recovery. Change of diet is ineffectual in arrest- 

 ing the malady, at any rate at first. 



P. Meachem^ noticed no ill- effect in horses until after 

 twelve months' feeding. 



Cases of disease in cattle have been observed with 

 L. clymenum^ and with the Indian vetch,^ in both cases 

 in France. Cows had green vetches containing L. clymenum 

 for ten days. Three weeks later they were ill ; they lay on 



