608 



THE MICROSCOPE. 



Fig. 271. 



I, The AnUwa of the Silkworm-moth. 2. Tongue of a Butterfly. 3, A portion 

 of the Tongue highly magnified, showing its muscular fibre. 4, The Trachea 

 of Silkworm. 5, The Foot of Silkworm. (The small circles enclose each some- 

 what near tho natural size). 



