TIME AND CHANGE 
been tremendous at times; yet I escaped it all. 
The huge and fearful mammals of the third or Ter- 
tiary period passed me by unharmed. Eruptions 
and cataclysms, the sinking of the land, the inun- 
dations of the sea, world-wide deformations of the 
« earth’s crust, fire and ice and floods, monsters of the 
deep and dragons of the land and the air have beset 
my course from the first, and yet here J am, here we 
all are, and apparently none the worse for the ap- 
palling dangers we have passed through. 
Evolution thus makes the world over for us. It 
shows us in what a complex web of vital and far- 
reaching relations we stand. It gives us an outlook 
upon the past that is startling, and in some ways 
forbidding, yet one that ought to be stimulating and 
inspiring. If we, look back with a shudder we should 
look forward with a thrill. If the past is terrible, 
the future is in the same degree cheering and invit- 
ing. If we came out of those lowly and groveling 
forms, to what heights of being may we not be carried 
by the impetus that brought us thus far? In fact, to 
what heights has it already carried us! 
II 
That the hazards of the past, to many forms of 
life, at least, have been real and no myth, is evident 
from the vast number of forms that have been cut 
off and become extinct; various causes, now hard 
to decipher, have worked together to the end, such 
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