COS 



THE MICROSCOPE. 



Fig. 271. 



1 , The Antenna 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, Tbe Foot of Silkworm. (The small circles enclose each some- 

 what near tin natural size). 



