MEANS OF DEFENCE OF INSECTS. 269 
economy of insects are of very great importance to them, 
we may safely conclude that the peculiarities in all these 
respects, of which we do not yet know the use, are equally 
necessary: and we may almost say, reversing the words 
of our Saviour, that not a hair is given to them without 
our Heavenly Father. 
I am, &c. 
