EGGS OF INSECTS. 15 
Lucy. What sort of place ; and how 
are they kept warm in winter ? 
Mother, The fly lays the eggs on that 
kind of tree on which they are to live, 
either in a cranny of the bark, or in the 
angle formed by the division of two 
branches. 
Lucy, How are they fastened there, 
for such light round things would easily 
roll off? 
Mother. They would do so, were it 
not that, when the fly deposits the eggs, it 
also drops a sort of glutinous liquid over 
them, which, being hardened by the air, 
thus gums them to the bark of the tree. 
Lucy. Then all those that are placed 
on the bark of trees are gummed to the 
bark ? 
Mother. No, not all ; there are many 
other methods by which they are pre- 
served. Some species, or kinds, lay their 
eggs among the close moss, which often 
grows upon the stems of shrubs near the 
ground ; and under that cover they avoid 
being seen by their enemies : in other 
