24 INSECT BEHAVIOR 



nessing an endless series of geographical and living wonders that 

 would soon bewilder us. 



We can go no further now. Our expedition into the new world 

 must needs come to an end. Before we return home, we are, how- 

 ever, to witness the approach and arrival of a new period. We are to 

 see with our own eyes and in a very short time, the temporary death 

 of this curious land. 



The period, which is a glacial one, comes rapidly and is marked 

 by great frosts, capable of killing an entire jungle in a single night. 

 With each successive frost, countless millions of creatures perish, 

 the weakest dying at once, the stronger surviving for a slightly longer 

 period. Lakes and oceans freeze solid from surface to their depths, 

 valleys and mountains are buried with snow and in an incredibly 

 short time, perhaps a month or two, life in this lately flourishing land 

 through which we have traveled may be cold and dead. 



A glacial period has come, transforming the land into a desolate 

 waste. It has apparently carried all life before it. 



A fertile earth today, a barren moon tomorrow, such is this new 

 world within our own! 



******* 



Let us now see just what this new world is and where our travels 

 have led us. We have barely looked into its treasure house of won- 

 ders, but for all that, we have learned something and our eyes have 

 been opened to its possibilities. 



Its geography is our own, more minutely seen, analyzed as it were 

 into its smallest parts. To study its wonders one must lose sight 

 of all large unimportant things. Real mountains, lakes, deserts, 

 objects that make our geography, all must be ignored. They are 

 too evident to be considered and to bother with them as a whole 

 would be like hoarding something without value. 



If we examine a great painting closely, we see only a melee of mean- 



