474 Miscellaneous Intelligence. 
known to the unknown, from what has been and from what is to 
what will be, I cannot entertain a doubt that these things are 
coming to pass; for I am sure there are places where what is very 
like them has already happened 
first principles of biology which our great master, Mr. Darwi 
has laid down for us. -The weaker, the more generalized forms of 
life must always make way for the stronger and more specialized. 
The other part of the answer is supplied by Mr. Wallace; for no 
one can have studied his volumes to much purpose without per- 
the globe, which have been, so to speak, elaborated by nature 
and turned out as the latest and most perfect samples of her handi- 
work. 
on for ages is that, adapted to the condition under which they find 
themselves, they maintain their footing on the grounds of equality 
mong one another, and so for centuries they may have “kept the 
noiseless tenor of their way.” Suddenly man interferes and lets 
loose upon them an entirely new race of animals, which act and re- 
act in a thousand different fashions on their circumstances. It is 
not ak that the new comers should be predacious; they 
may 
