ANT COMMUNITIES 



a once mighty people left or thrust by some untoward 

 change upon unfavorable sites which must work toward 

 their extinction. [McC. 15, p. 360.] Or, on the other 

 hand, may we conjecture that here are the first stages 

 in the origin of a new species already on the march, and 

 against unfavorable environment, toward the consum- 

 mation of such a splendid confederacy as has occupied 

 the hills of Austin? 



