490 THE MICROSCOPE. 



upon such substances as are proper to nourish the cater- 

 pillars : thus the common 

 Cabbage - butterfly lays 

 them on the cabbage ; the 

 Peacock-butterfly on the 

 nettle ; the Swallow-tailed 



Fig. 245.-^ of Lackey Moth. butterfly Qn fennel or rue . 



the Atalanta-butterfly on the nettle. The eggs are simply 

 attached by some glutinous secretion to leaf or stem; in 

 a similar way are the eggs of Moths deposited, a few being 

 enclosed in down. 



Moths and Butterflies supply the microscopist with 

 some of the most beautiful objects for examination. 

 What can be more wonderful in its adaptation than the 



Fig. 246. lfo//i. 



antenna of the Moth, represented in fig. 247, No. 1, with 

 a thin finger-like extremity almost supplying the insect 

 with a perfect and useful hand, moved throughout its 

 extent by a muscular apparatus, the whole being of a 

 feathery construction! The tongue, No. 2, is made for the 

 purpose of dipping into the interior of flowers and extract- 

 ing the honey ; this is endowed with a series of muscles, 

 an enlarged view of a portion is given at No. 3. 



The inconceivably delicate structure of the maxillae or 

 tongues (for there are two) of the Butterfly, rolled up like 

 the trunk of an elephant, and capable, like it, of every 

 variety of movement, have been carefully examined and 

 described by Mr. Newport. " Each maxilla is convex on 



