OP THE HUMAN SKIN. 77 



the pressure previously exercised upon it from 

 above. 



In an excessive case of favus of the scalp or 

 body, the appearances are so marked, that any one 

 who has ever seen a case, or a good portrait of one, 

 would be in no doubt as to the nature of the affec- 

 tion. But there are many other diseases of the skin, 

 some of the appearances of which so simulate the 

 various stages of favus, that we can hardly recom- 

 mend any one, unless forced to by being away 

 from medical advice, to attempt treatment except 

 under the advice of a physician; not, however, 

 an advertising quack dermatologist. The only 

 treatment we can with safety recommend, is to 

 soften the favus crusts in some oily substance, in 

 order to remove them, keep up for weeks a steady 

 daily epilation, or pulling out of the hairs, 

 around and over the affected part, and rubbing in 

 a solution of two grains of corrosive sublimate to 

 an ounce of water. That this latter medicine 

 taken internally is a deadly poison, we believe 

 every one now knows. It does no harm exter- 

 nally, and serves to destroy the spores and pre- 

 vent their germination. The epilation of the 

 hairs is a difficult work, as they are very brittle 



