xii CONTENTS 



CHAPTER PAGE 



IV. STUDIES PRELIMINARY TO PLANTING .... 62 



The Soil. Amount of Soil Subsoil Prepara 

 tion of the Soil. Arrangement of Trees on Street. 

 Parking Strips Width of Roadway Divisions 

 of the Street Height of Buildings Distance 

 from Buildings Distance from Sidewalk Curb 

 Distance Apart of Specimens Trees Set with 

 Relation to the Street The Spacing Uniform 

 Opposite or Alternate Treatment of Corners 

 Setting Trees between Sidewalk and Property- 

 Line Double Row Number of Rows of Trees. 

 One Species on a Street. What Determines the 

 Choice of Species Rows of Different Species. 



V. THE PLANTING OF STREET-TREES 82 



The Tree in the Woods. The Tree in the Nursery. 

 Developing of the Roots Developing of the 

 Stem Limitation of Size Transplanting Large 

 Specimens Points in Selecting Trees How 

 Shipped A Municipal Nursery. Precautions in 

 Planting. Heeling-in Top and Root Pruning 

 How the Tree is Set When to Plant. Staking. 

 Single Stake. Guarding. Box Wire Guards. 

 Grills. Subirrigation Drainage of Subsoil. 



VI. THE CARE OF STREET-TREES 102 



How a Tree Grows. Evolution of a Tree The 

 Seedling Growth in Height Growth in Diam 

 eter Essentials for Normal Growth Reserve 

 Material. Watering. How much Water Kow 

 to Water. Cultivating and Fertilizing. Training 

 and Pruning. Fixing Height of Branching 

 Forming the Crown The Street as a Unit 

 The Individual Tree How Best to Prune- 

 Origin of Branch The Wrong Way The Right 



