TOBACCO. 77 



we might, although her works are all around 

 us and we familiarly kaow her as Nature and 

 place her in the feminine gender. 



It is very misleading. 



Let us read again the story of ice invasions 

 with the intervals of mild temperature, when 

 forests flourished and great creatures roamed 

 over the land. We can not even approximately 

 be certain of the length of time involved in any 

 one of them. Nature is unhurried. Time, as 

 we know it, is a moment in her calendar. 



From whence came the protozoa ? One great 

 scientist calmly guesses that it may have 

 reached us in an aerolite. 



However, from this minute but perfect or- 

 igin, animal life has developed until in the 

 human species the highest handiwork of cre- 

 ation appears. During this procession of spe- 

 cies many have disappeared from the earth. 

 Some that we know of in modem times have 

 vanished, or are about to do so. 



Within our brief period of history many 

 nations of mankind have risen and fallen. Here, 

 as elsewhere, Nature is at work — always, un- 

 tiringly, systematically at work. The closest 

 observers of her method in the human sifting 

 reduced her operations to the law, "Survival 

 of the fittest." 



This we have learned: the further the 



