176 



GEELACH ON THE ITCH AND MANGE. 



pustules and scabs, the falling off of hair in different parts of 

 the body, such as about the ears, and head, and back. As it 

 has proved difficult to find the insect in true dog mange, its 

 diagnosis may be for a time uncertain, though we have found 

 that treatment soon clears the mystery, as in true scabies 

 external remedies suffice to effect a cure, but in the very 



Fig. 192. (GEELACH.) Sarcoptes canis. 



frequent eczematous eruption, occurring especially in the in- 

 side of the thigh, and on the abdomen of the dog as well as 

 upon the upper surface of the body, alteratives, especially 

 arsenic, prove indispensable to effect a cure. 



Dog mange is transmissible to man, but it disappears 

 spontaneously from the skin of the human being in from a 



