INFLAMMATION OF THE SKIN. 141 



tion is so successful in this complaint as corrosive sublimate in 

 solution, but it is very liable to produce salivation, and sometimes 

 has been known to destroy the dog even when a muzzle has 

 been constantly used, being absorbed into the system through the 

 skin. It may be applied in solution simply, or combined with 

 lime water in the form known as 'yellow wash.' The simple 

 solution should be very carefully brushed into the roots of the 

 scabs, and should be used of the strength of 3 grains to the ounce, 

 and not more than once a week, using the 6 yellow wash ' daily 

 and freely in the same way. This treatment generally suffices, 

 but after its failure I have found, in several bad cases, the 

 yellow iodide of mercury (in the form of an ointment of the 

 strength of 1 drachm to an ounce of lard) succeed in curing the 

 disease. In the other kind of scabby mange, caused by an insect 

 parasite, described hereafter, little hard pimples may be found at 

 the extremity of fissures, and here by careful exploration the 

 insect may be found. These fissures or insect galleries are the 

 distinguishing marks of the two forms of eruption, but as the 

 treatment of them varies little, the diagnosis is not very important. 

 The same remedies would succeed here, no doubt, as in the 

 vegetative form ; but sulphur is equal to the cure, and is much 

 less injurious to the constitution. The compound sulphur oint- 

 ment of the shops is the best preparation, and should be well 

 rubbed in every night for a week, using here the muzzle to 

 prevent the dog removing the application, more than from any 

 fear of injury to him. It should be mixed with equal quantities 

 of train oil and spirit of turpentine, the latter being very destructive 



