luther] SHADE TREE PROTECTORS' LEAGUE 33 



Necessity then arose for practical field instruction and the 

 Shade Tree Commission appointed men from their corps of work- 

 ers to go with the children and show them how to "cultivate", or 

 loosen the earth around the base of the tree. The children were 



PRACTICAL INSTRUCTION 



shown the eggs, cocoons and larvae of the tussock moth on the 

 trees themselves, and even taught to track the insidious borer to 

 his lair. - The pictures show some of this street instruction. 



WHAT IT DID 



Figures will give little of the vitality of the work, yet some- 

 thing may be gained from the following data. The spirit will 

 show in the anecdotes and illustrations. 



MONTHS OF JULY AND AUGUST 



One thousand school children at work with varying de- 

 grees of intensity. The figures below, however, were compiled 

 from the reports of two hundred and fifty children only. 



Ages ranging from 7 to 14 years. 



1873 street trees watered at least twice a week. Last summer 



