Eiometisal 

 Library 



ANIMAL PARASITES 



OF THE HUMAN SKIN. 



CHAPTER I. 



Man's cutaneous envelope, like the integument 

 of the lower animals, is subject to be temporarily 

 visited bj parasites, or perhaps become a perma- 

 nent abode for them. However unpleasant this 

 idea may seem, only too many of the human family 

 in the most civilized countries are annoyed or ren- 

 dered miserable by the presence of the animal para- 

 sites. Amongst the poor and dirty, the unfortunate 

 children suffer a great deal from them, and we have 

 seen serious trouble arise from their ravages. But 

 all classes of the community are liable to be infested 

 by them , — the wealthiest and the cleanest. Among 

 the lower classes, prejudice, ignorance, and even 

 superstition, help to favor the production and con- 

 tinued existence of these parasites ; and in the upper 



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