416 ANIMAL STUDIES 



their hours of loneliness in human society by picking up 

 and repeating the phrases they hear. They show a skill in 

 imitation and a capacity of association of ideas unequaled 

 by any other of the lower animals. In Japan certain kinds 

 of chirping insects, cicadas and the like, are kept in cages 

 in homes, affording great delight to their owners. 



