22.2 THE FARMER S VETERINARIAN 



color, take on a leaden hue. The coat at the same 

 time shows unthriftiness. In such cases the face 

 and head may swell because the accumulated ma- 

 terials fail to pass out. When these bunches are 

 tapped with the fingers, a dull sound is heard. 

 Treatment consists of isolating the animals and giv- 

 ing them good care, nutritious food and well-ven- 

 tilated quarters. A bucket, filled with boiling 

 water, in which a half cup of turpentine is placed, 

 and held under the nose to steam the nostrils and 

 face, is excellent. Any sort of blanketing that will 

 hold the steam about the head is very good to 

 have at hand at the time. For internal treatment 

 give a teaspoonful of sulphate of copper three times 

 daily in a small bran mash ; following this drop the 

 copper sulphate and give 2 tablespoonfuls of 

 Fowler's solution of arnica twice a day in the mash. 

 Should the bulges on the face become large, it will 

 be necessary to open them. Often a part of the 

 bone requires sawing out to get effective results. 

 In these severe cases it is best to have your veteri- 

 narian make the operation. 



NAVICULAR DISEASE.— A disease of the 

 navicular bone and the structures surrounding it. 

 It is called " coffin joint lameness." This bone is 

 situated at the back and inferior part of the coffin 

 joint, and acts as a pulley over which the flexor 

 tendon of the foot passes. Horses with upright 

 pasterns are most liable to it, as more weight is 

 thrown on this joint. Those shod with calkins on 

 their shoes, which prevent the frog from coming 

 in contact with the ground, therefore causing a 

 shock to this joint, are also very liable to it. Some 

 horses have hereditary tendency to this disease. 

 Nails penetrating too deep through the sole, or 

 anything that will cause inflammation of this joint, 



