226 
NATURAL HISTORY. 
THE BUTTERFLY. 
17. Butterflies have six legs, but make use of 
only four. The outer coat of the eye, in all the 
species, has a lustre, in which may be discovered all the 
various colours in the rainbow. It has likewise the 
appearance of a multiplying glass, having a great num- 
ber of sides, in the manner of a brilliant cut diamond. 
18. The wings of Butterflies are very different 
from those of any other fly : they are four in num- 
ber, and, though two of them be cut off, the insect 
has still the power of flying. They are, in their 
own substance, transparent, but owe their opacity to 
the beautiful dust with which they are covered. 
THE BEE. 
19. This little insect is the manufacturer of two 
How are Butterflies distinguished ? 
