272 The Farmer^s Veterinary Adviser. 



Locally use benzoated oxide of zinc ; glycerine and aloes j 

 camphorated spirit and chloral ; the same with a few 

 drops of tincture of chloride of iron, etc. When irritation 

 subsides and the scales drop off, leaving a healthy-looking 

 surface, smear with a bland ointment (spermaceti and 

 almond-oil). 



CUTANEOUS INFLAMMATION WITH NODULAR SWELLINGS. 

 TUBEECULES. 



The most remarkable example of this is what is known 

 to horsemen as surfeit, by veterinarians as urticaria. It 

 occurs in spring and autumn in horses, cattle and pigs, 

 and is at once connected with moulting and sudden changes 

 of food or of weather. With some fever, there appear on 

 different parts of the body swellings varying in size from 

 a pea to a walnut, and often running together so as to 

 form extensive patches, which will close the nostrils, eye- 

 lids or Hps, and put a stop to feeding or even threaten 

 suffocation. There is little pain or tenderness and the 

 swellings are very transient, appearing and disappearing 

 on different parts at short intervals. 



Treatment consists in clearing out the bowels by a pur- 

 gative (horse, aloes ; ox, salts ; pig, oil or jalap,) and fol- 

 lowing this up with bitters (gentian, etc.,) and diuretics 

 (nitre, carbonates of soda and potassa). 



SCALY SKIN AITECTIONS. PITYEIASIS. 



These are exemplified in the scurfy, scaly affections 

 which appear in the bend of the knee (mallenders) and 

 hock (sallenders) and on the lower parts of the limbs, by 

 scratches, and by a scaly exfoliation and shedding of hair 

 of the mane and face of old horses, and of different parts 

 of the body in cattle. Some of these like mallenders, sal- 

 lenders and scratches may commence as papules or vesicles, 

 while, the scaly affection of the face is often connected 

 with a vegetable growth, but this form is distinguished by 

 extreme tenacity, and a gradual progress from its point of 



