APPENDIX. 127 



tremors, some lameness in a particular limb, 

 without any perceptible cause, and is ushered in 

 subsequent to sudden exertion, and is attended 

 with a dusky brown color of the membranes of 

 the eye and nose, and some signs of tenderness on 

 pressure over the short ribs. The most severe 

 forms come on very suddenly after having driven 

 a very short distance, the horse suddenly losing 

 his life and showing great anxiety and despond- 

 ency. The victim is in great apparent pain ; his 

 flanks heave, nostrils are enlarged, the face is 

 pinched, sweats profusely; trembles violently ; 

 his limbs sway and bend, and finally refusing to 

 support their tottering sufferer he falls. If urine 

 is passed it is highly colored, being dark brown, 

 red or black, and is often mistaken for bloody, 

 but is found to contain neither clots nor corp- 

 uscles of blood, its color being produced by im- 

 perfect oxidation of Albuminoid mixed with an 

 excess of Uria* Although prostrate the animal 

 at intervals is convulsed in limbs and body, 

 demonstrating the uncontrolable influence of the 

 poison on the nervous system. The pulse is 

 variable but high ; temperature of the body 

 natural at first, but rises slightly in case the 

 animal survives. This disease may prove fatal 

 in a few hours or days at farthest or improvement 

 take place at almost any time advancing to 

 speedy recovery. The blood is dark, difflerent, 

 coagulates loosely if at all, and has'a strong smell. 

 In some cases of recovery partial paralysis of the 

 hind limbs or wasting of the crural nerve and 

 muscles above the stifle, will sometimes persist 

 for a time, showing structural nervous disease. 

 Prevention is to be sought by daily exercise. 

 Where horses have had a time of rest, let them 

 beexercised at first gently by walking, increase- 



