102 THE PRACTICE OF VETERINARY MEDICINE. 



fall out, etc. On a close examination, a peculiar redness of 

 the skin may be observed. Pustules form, which after a 

 time discharge their contents. The debility is in some 

 cases very great. The parasite causing mange in the dog 

 is usually found, on examination, to be the sarcoptes. 



Treatment. — Cut or shave the hair from the parts affected, 

 wash thoroughly, and use one of the above-mentioned ai)pli- 

 cations. Carbolic acid, however, should be used with great 

 care, as its action on the dog is rather peculiar, inasmuch as it 

 is readily absorbed, and, if applied too strong or over too great 

 a surface at one time, is likely to cause death. Hence it is 

 to be regarded as a very dangerous application. However, if 

 the practitioner is careful, and can have the animal under his 

 immediate care, it is probably the most effectual of all appli- 

 cations. If the animal is debilitated, alteratives and tonics 

 are to be given, as well as plenty of good food, exercise, etc. 



Scab in Sheep. — Scab, or scabies, is a very common affec- 

 tion in some countries, causing serious loss to sbeep-owners. 

 The parasite causing scab is the dermatodectes. 



Symptoms. — The condition is one easily detected, as the 

 symptoms are very plain. Great itchiness is evinced by 

 almost constant scratching on the part of the affected 

 animal. The wool begins to fall off in patches, showing 

 redness and inflammation of the skin, and sometimes a nasty 

 sore is to be seen. The animal loses flesh and spirits, 

 becomes debilitated, etc. 



Treatment. — Dress the parts thoroughly with carbolic 

 lotion, in the proportion of acid one part to water eight, 

 sixteen, or twenty parts ; or, to save trouble and expense, 

 where large numbers of sheep are affected, some of the 

 patent sheep-dips may be used, as some of them are of great 

 excellence. The affected animals should at once be removed, 

 and kept apart from animals not so affected. Another 

 remedy, which is strongly recommended, is as follows": 



