Pond Life 
resemble fishes, such as the whales and 
seals ; and finally mankind appeared on 
the scene. At first but little removed 
from the other animals—for it must not 
be forgotten that a man is an animal too 
—men lived in caves and holes in the 
earth, and under rude shelters of boughs, 
until by slow degrees they learned to 
protect themselves from the beasts of 
prey and to provide for their wants by 
banding themselves together into tribes, 
and finally, by practising various arts 
and manufactures, to arrive at the present 
state of civilization. 
Now we have come a very loug way 
from the ‘pollywogs.’ But it seemed a 
good opportunity to glance, in a few 
words, at the history of what has hap- 
pened in the world of nature, because, 
without some such instance of fish-like, 
