392 DISEASES OF THE HOKSE'S FOOT 



' It should also be noted that the animal was able to 

 undergo a severe course of training for some years, and 

 to gallop successfully over some of the most trying courses 

 in England, During the whole of this time he walked and 

 galloped apparently sound, but trotted always lame, and 

 generally dead lame.'^ 



2. 'I herewith send you photographs of three cases 

 of the above disease, occurring in the internal surfaces of 

 the wings of the os pedis. The photos were kindly done 

 for me by Dr. A. Lingard, Imperial Bacteriologist to 

 Government of India. It is a cause of many cases of 

 obscure foot lameness in India, and frequently accounts for 



Fig. 152. — Effects of Periostitis on the Os Pedis. 



the numerous entries' on veterinary medical history sheets 

 under the heading " Contused Foot." 



' The course of the disease is as follows : The disease 

 makes its appearance very soon after arrival in India, the 

 animal being admitted to hospital suffering with undoubted 

 foot lameness, generally slight. One is soon led to suspect 

 this disease by negative symptoms of other disease being 

 in existence. No coronary enlargement or flinching on 

 pressure to the coronet, no shrinkage or wiring in of the 

 heels, neither is the] characteristic pointing of navicular 

 present. In the early stages one has false hopes of re- 



* W. E Litt, M.R.C.V.S., Veterinartj Record, vol. viii., p. 527. 



