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 Comers — 

 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. 



VL 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 — How 

 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 



