INSECT HERDS AND HERDERS 





It ^^ 



ANTS -NEST UNDERNEATH A FLAT STONE 



A herd of aphids brought up for an airing, or perhaps for " milking " 



which, lying upon the surface, absorbs the heat of 

 the sun. 



Multitudes of aphitls subsist upon roots of plants. 

 Indeed, it is here that they are most destructive to the 

 horticulturist. From this habit it appears how much 

 easier it would be for ants, who are also subterranean in 

 habit, to acquire the instinct of domesticating aphids 



49 



