232 
NATURAL HISTORY. 
THE SNAIL. 
40. These insects inhabit shells, and they are 
found of various sizes and forms. They fill up all 
the intermediate gradations of magnitude from that 
of an apple or egg to the minuteness of a grain of 
wheat ; and, in that diversity of size, exhibit all the 
colours of the rainbow, with the polish of ivory or 
marble. 
41. The eyes of the snail, which are four in num- 
ber, are lodged in their horns, one at the end of each 
horn, which they can protrude and retract at pleas- 
ure. They chiefly subsist upon the leaves of plants 
and trees. 
42. Worms constitute a large class of animals 
The Earth Worm is so formed as to be capable of 
What is said of insects of the Snail kind 1 
Describe the Earth Worm 
