228 INJURIES. 



leathern sole and a dressing, which will keep the dirt out, and 

 protect the foot ; the latter two being the greatest evils to 

 foot sores. Make as much pressure as possible upon the 

 new granulations with dossils of tow in binding up the foot ; 

 this will harden the exposed sensitive parts, and promote 

 the production of a sound horny covering. 



Extreme Cases. — Occasionally, we meet with cases in 

 which the injury done to the foot is such, that the animal, 

 from excess of nervous irritation, threatens to become afflicted 

 with lock-jaw. The nail may have pierced the flexor pedis 

 tendon ; or it may have penetrated into the navicular joint : 

 which cases will require the treatment to be modified. Pur- 

 gative, with sedative or narcotic medicine, according to the 

 particular circumstances, will here be required. It some- 

 times happens the whole limb is decidedly involved. i With 

 regard to the local inflammation, our remedies ought to be 

 soothing, but preceded by a thorough searching of the hoof; 

 afterwards, the applications should consist of poultices. Un- 

 less the joint be opened, then the measures taken must 

 accord with those already stated. Should there be appear- 

 ances indicating the advent of lock-jaw, give large quantities 

 of opium, one ounce for a dose, and this amount frequently 

 repeated. This outline of treatment I must leave my reader 

 to fill up from that which has been said under the heads of 

 " inflammation," " fever," and " opened joint." 



TREAD AND OVER-REACH. 



These are names for injuries which difi'er in no essential 

 respect. Both are contused wounds ; both are inflicted on 



' Mr. Shipp records an interesting case of this description. The horse picked 

 up a carpenter's nail, which entered the point of the frog, pierced the substance 

 of the foot " more than two inches," " and was extracted with great difficulty 

 and pain to the animal." " The thigh, and even to the middle of the belly, was 

 violently inflamed and swelled, together with the perinaeum, unApart of the other 

 thigh, and his scrotum was at least five times its original size." — " Symptoms 

 approaching lock-jaw appeared:" which seemed to have been quelled by a 

 drench containing two ounces of ammonia, and two drachms of opium. The 

 case ultimately did well. 



