240 DISEASES CLASS II. 1. 5. 12. 



12. Crusta lactea. Milk-crust is a milder disease than tinea, 

 affeting the face as well as the hairy scalp of very young children. 

 It is not infectious, nor liable to swell the lymphatics in its vici- 

 nity like the tinea. 



M. M. Cover the eruption with cerate made with lapis cala- 

 minaris, to be renewed every day. Mix one grain of emetic tar- 

 tar with forty grains of chalk, and divide into eight papers, one to 

 be taken twice a day, or with magnesia alba, if stools are wanted. 

 The child should be kept cool and much in the air. 



13. Trichoma. Plica polonica. A contagious disease, in which 

 the hair is said to become alive and bleed, forming inextricable 

 knots or plaits of great length, like the fabled head of Medusa, 

 with intolerable pain, so as to confine the sufferer on his bed for 

 years. 



