Account of the Videx penetrans L, 



295 



A similar ball, both of the natural size (e) and magnified (h), seen in profile, in which the belly 

 of the flea is already swollen, and the head and feet externally free ; but internally the anal 

 aperture of the insects formed and visible. 



does not incommode the inhabitants in their beds, but in the 

 open country, and which, during the dry season, incredibly 

 multiplies, living in sandy and dusty places, and among the 

 ashes of fire-places. It chiefly attacks the feet, particularly 

 between the nails of the toes, but also, sometimes, other parts 

 of the body. Moisture, but especially the juice of lemons, 

 destroys it. By watering its places of resort, and scrubbing 

 rooms, particularly with the juice of lemons, dwelling-houses 

 may be freed from this dis- 

 agreeable guest. The sand 

 flea, thus roused from its place 

 of abode, is not so shy as its 

 congener, which the slightest 

 attack chases away ; but this 

 buries itself deeply in the skin ; 

 and it is only by a peculiar 

 skill that it can be extracted, 

 and this with needles or fine 

 knives. Although much smaller 

 than the common flea, it oc- 

 casions, by its constant irri- 

 tation, the most violent and 

 alarming indisposition, particu- 

 larly where it has nestled in great numbers 



The sand flea, both much magnified and of 

 the natural size, seen from the ventral side. 



Inflammation 



