AGRICULTURAL ANTS. 



79 



" When it has selected a situation for its habita- 

 tion, it bores a hole, around which it raises the sur- 

 face three and sometimes six inches, forming a low, 

 circular mound, having a very gentle inclination from 

 the center to the outer border, which on an average 

 is three or four feet from the entrance. But if the 



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location is chosen on low, flat, wet land, liable to in- 

 undation, though the ground may be perfectly dry at 

 the time the ant sets to work, it nevertheless elevates 

 the mound in the form of a pretty sharp cone, to 

 the height of fifteen or twenty inches or more, and 

 makes the entrance near the summit. In either case 



