476 The Farmer's Veterinary Adviser. 



needed, matter may require an opening to escape, or the 

 bone may have to be scraped to expose a living sur- 

 face. But in wounds of the tendon or joint the foot must 

 be wrapped iu cloths, the heels raised if standing, and a 

 constant stream of cold water kept up on the part, by 

 liaviug a caoutchouc tube attached to the limb and foot 

 and acting like a syphon to bring the water from a bucket 

 at a higher level. This may require to be kept up day 

 and night for several days. The subsequent treatment is 

 like that for pedal sesamoiditis. 



DISTOETIONS OF THE COFFIN-BONE. 



Under this head may be named a great variety of de- 

 formities, the result of disease. Thus in long continued 

 inflammation of the laminae the fibrous net-work in front 

 of the coffin-bone is partly ossified, giving this part a con- 

 vex aspect from above downward. Continued irritation 

 of the sole will equally develop a bony enlargement which 

 is associated with a circumscribed convexity and tender- 

 ness of the sole. The pressure of a horny tumor, whether 

 on the laminsB, the quarter or elsewhere, corresponding to 

 and pressing on the bone, will cause absorption and de- 

 pression of the bone to an equal extent. The pressure 

 on the anterior border of the coffiin-bone, when separated 

 from the hoof-waU and resting upon the sole, leads to 

 extensive absorption and rounding of this part with a 

 bony deposit above, on its front. Persistent irritation 

 along the lateral borders of the foot from binding with 

 nails, or the separation of the wall and sole, with or with- 

 out the presence of gritty matters in the groove, causes 

 absorption and rounding of the sharp lateral margins of 

 the coffin-bone. But the heels of the coffin-bone are the 

 parts which above all suffer in this way. Bruises from 

 setting in of the shoe, from gritty matter or hard clay, 

 especially if a furrow has been formed between wall and 

 Bole, from curving forward and inward of the heels when 

 the supporting sole has been pared out in search of corns 



