WONDERFUL ARRANGEMENT. 67 



It is very singular to add, that as some trees 

 acquire their leaves earlier or later than others, 

 the eggs of insects which are deposited on them, 

 never are hatched before the leaves appear, even 

 while some of their companion eggs of a different 

 species, and placed, therefore, on different trees, 

 may have long since sent their young into the 

 world. Thus, we learn that not only has God 

 been pleased to arrange generally the hatching of 

 the eggs of insects, and the putting forth of the 

 leaves of trees, so that the latter shall precede the 

 former, but it has also been ordered that the eggs 

 deposited on each particular plant shall be hatched 

 just when the time of that plant's putting forth its 

 leaves shall arrive, at whatever period that may 

 be. This may be more readily comprehended by 

 an example : thus, there is no difference, so far 

 as we can perceive, between the eggs of the little 

 insects just mentioned as feasting on the leaves 

 of the birch, and those whose food is the leaf 

 of the ash ; yet the birch will be in leaf nearly 

 a month before the ash-tree, and the eggs depo- 

 sited on it will therefore be hatched a month 

 before those placed upon the ash, although both 

 trees are in the same position with regard to 



