V 



6 



H 



Fig. 70. Foreign material frequently found in skin .scrapings. A, cotton fiber. B, wool 

 fiber. C, plant fiber. D, mosaic fungus, the exact nature of which is in dispute. E, wood fiber 

 and air bubble. F, crystals of potassium hydroxide which have dried on the surface of the 

 cover slip. G, amorphous debris from lesions treated with zinc ointment. II, oil globules, which 

 may simulate fungus spores. 



244 



