NATURAL HISTORY. 



115 



they have made them as high as they wish, 

 then they fill in the spaces between the tops 

 of all these sugar-loaf hills, so as to make one 

 roof over all. Here is a picture of one fin- 

 ished. 



After this is done, they take down nearly all 

 of the little sugar-loaf hills inside ; for they 

 only wanted them for a scaffold to support the 

 top while they were building it." 



"Uncle Philip, what is all this built of?" 

 " It is built of clay, which the ant makes 

 almost as hard as stone." 



