84 nature's teachings. 



On the extreme left are shown the head and closed lancets of 

 a foreign Gad-fly, the lancets being all in their sheaths, and 

 showing the character of the weapon which enables a small fly 

 to be master, or rather mistress, of the forest. I say mistress, 

 because in all these cases it is the female alone that possesses 

 these instruments of torture. 



Next it is a magnified representation of the lancets of the 

 common Mosquito, as seen from above, both lancets being 

 removed from their sheaths and separated. 



