258 ANTS AND CHILDREN OF THE GARDEN 



to the bird it pursues? I guess other animals besides ants 

 have a wireless, too. 

 After a Year's Search the Acrobat Cows Are Discovered. 



KENNETH. Hurrah for me ! I saw a hundred Acrobats 

 climbing' the black acacia tree that is about fifteen feet 

 high. A few were coming down and their abdomens were 

 three times as big as those going up. That gave me the 

 clew. 



A B 



A Cedar with plant lice herded by Carpenters. 



B Black acacia with cottony cushion scale herded by Acrobats. 



DOROTHY. Well, hurry up and tell us about it. 



KENNETH. They were not herding plant lice at all, 

 but the Cottony Cushion Scale one of the plant scales. 

 The ants were using the insect for cows all the same. 

 They were herding the scale just the same as the Carpen- 

 ters herd the aphids, or plant lice, on the cedar, oak and 

 sunflower. 



ALBERT. I see the scale is about as large as a lady- 

 bug. From her under side she hangs a poke-like white 

 egg-sack a half inch long and fills it with about three hun- 



