( xiv ) 



Article 2. Protection against extraneous Causes of 



Injury — 461-463 

 „ 3. Directly fostering the Growth of tlie 



Crop ... 463-463 



Section II. Cleanings .■• 465-468 



„ III. Execution of preceding Operations ... 468-469 

 „ IV. Fostering Operations in an advanced crop, 



Generalities ... 469 

 Article 1. Ordinary Thinnings — 



§1. Their Advantages ••• 470-472 



§2. Principles on which they should be conducted ... 472-477 



§3, When to make the First Thinning ... 477-478 



§4. How frequently they should be repeated ■•• " 478 



§5. Season for making them ••. 478-479 



§6. Their Execution ... 479-480 



§7. Concluding Remarks ••• 480 



Section 111. Plenary Thinnings ... 480-484 

 IV. The Pruning of Trees ... 484-486 

 „ V. Improvement Fellings ... 487-491 

 Appendix A. Results of difierent degrees of Ordinary- 

 Thinnings in Forests in Saxony ... 492-496 

 Appendix B. Alphabetical Index of Technical Terms 



used ... 497-500 



