INSECTS. 
49 
but I may tell you that it is fitted with three pairs 
of jaws. These differ in form to suit the kind of 
food the insect takes. 
“ Insects that feed on solid food, which they bite 
or chew, have short, sharp -edged jaws. Others, 
that feed on the blood of animals 
or the juice of plants, have long 
mouth-parts of the best shape for 
licking, sucking, or piercing.” 
10. “You have not told us how 
insects breathe,” said Arthur. 
“ They have neither lungs nor 
gills to breathe with,” said Mr. 
Johnson. “ Instead, they have tiny 
tubes, which open to form breathing- 
holes in the sides of the body, and branch inwards 
to carry the air to the blood.” 
INSECTS.— II. 
1. “I must now say a few words about the wonder- 
ful changes that take place in the life of insects,” 
continued Mr. Johnson. “ Many insects have three 
stages of life, and very few, when hatched from the 
eggs, resemble their parents. 
2. “ From the egg a grub, maggot, or caterpillar 
comes forth, which, after growing to its full size, 
leaves off eating and seems to do nothing but rest. 
< M 387 ) D 
