322 DISEASES OF THE HORSE'S FOOT 



disinfected. They then form a thick crust, under which 

 profuse suppuration takes place. The same agents are like- 

 wise contra-indicated when haemorrhage is still present. In 

 this latter case they combine with the blood to form metallic 

 albuminates, which lie as an impenetrable layer on the 

 surface of the wound, and so hinder the action of drugs 

 on the tissue below 



During his after-treatment, Brembach advocates removal 

 of the dressings every second day, all cheesy material to be 

 scraped away with the knife, and the sublimate lotion to be 

 used again. He also insists on the animal being kept 

 standing in a dry stable — nothing but a stone pavement 

 kept clean — and put to regular work in a plate shoe after 

 the first or second week. Cure of advanced cases is said to 

 be obtainable in from four to six weeks. 



As illustrative of the value of pressure in the treatment 

 of canker, we may also draw attention to a treatment advo- 

 cated by Lieutenant Rose.* This observer holds that ade- 

 quate pressure is unobtainable by packing the foot, and, to 

 obtain it, removes the wall from heel to heel, much after 

 the manner of preparing the foot for the Charlier shoe, so 

 that the whole of the weight is taken by the sole and the 

 frog. Tar and tow is then lightly applied, the foot placed 

 in a boot, and the patient turned into a loose-box. The 

 dressing is repeated at intervals of four or five days until 

 the animal is cured. 



Those who have followed this method of treatment have 

 modified it by actually shoeing the animal Charlier fashion, 

 and keeping him at work, attention, of course, being at the 

 same time given to a proper antiseptic dressing. 



Reported Cases. — 1. (Malcolm's Treatmentf ). The sub- 

 ject was a five-year old horse belonging to a client of Mr. 

 Olver's, of Tamworth. The case was an exceptionally bad 

 one, for not only was the whole of the frog and sole of the 

 near hind-foot cankered, but the disease on the outside 



* Veterinary Record, vol. xi., p. 435. 

 t Journal of of Comparative Pathology and Therapeutics, vol. v., 

 P. 48. 



