14 EGGS OF INSECTS. 
Mother, That mark is half an inch. 
Probably the caterpillars were then three 
or four days old. 
Lucy, And still so little ? But to be 
sure, when they first came out of such 
very small eggs, they must have been 
so little that one could hardly see 
them. 
Mother, They were about an eighth 
part of an inch long ; you see they found 
their proper food ready for them the 
moment they came out of the e^g, 
Lucy, Why are those eggs, that are 
to come out soon, laid upon leaves ? 
Mother, They are placed on the leaf,^ 
because that is the food which they are 
destined to eat ; and, as they are to be im- 
mediately hatched, a more concealed place 
is unnecessary. 
Lucy, There are some kinds then that 
do not so soon come out of the e^^ ? 
Mother, Yes, several kinds ; and ac- 
cording to the length of time they are to 
remain in the e^^ the parent fly chooses 
a suitable place of security. 
