CONTENTS. 



SECTION VI. 



PREPARATION OF THE SOIL, FOR OPEN DISPOSITIONS OF TREES, AND CLOSE 



PLANTATIONS. 



Page 



Constituent parts of soils. Sir H. Davy, Kirwan, Griesen- 

 thwaite. Properties of the best possible soil. — Deep soils parti- 

 cularly favourable to trees. Vast superiority of park-wood in 

 England. — Theory of the melioration of soils. Surprising 

 changes worked by deepening and pulverising ; by comminution 

 of the parts. — Water and heat indispensable agents. Theory of 

 manures. Aeration of soils. Darwin, Davy, Thomson. — 

 Superior merit and ingenuity of TuU. Causes of the failure of 

 his system. — Best methods of improving soils ; mainly by inter- 

 mixture, and following the chemistry of nature. Great value 

 of lime and peat-moss. Discovery of Lord Meadowbank. — 

 Ingenuity and science of the Earl of Dundonald. Dung and 

 lime composts seldom prepared with accuracy. Sulphuric Acid 

 an unfortunate intermixture. — Preparation of soils. I. For 

 single trees and open dispositions of wood. Proper composts for 

 different soils and subsoils, for immediate or future use. — Pre- 

 paration for groups and larger masses. Great value of trench- 

 ing, or double-digging, for promoting growth, and saving- 

 expense. — Its extraordinary effects on wood, in the park and 

 elsewhere ; on the value of land ; in eradicating rushes. Vast 

 benefit of a twelvemonth's previous preparation. — II. Prepara- 

 tion for close woods and plantations. Striking economy of 

 previous trenching. Subsoils far more important than soils, in 

 all planting. — General view of British subsoils, as favourable or 

 unfavourable to wood. - - - - 129-156 



SECTION VIT. 



PREPARATION OF THE TREES FOR REMOVAL. 



Preparation, the providing of the protecting properties. Great 

 error in supposing that it relates solely to roots. Importance 

 of exposure, and letting Nature do her own work. Possession of 

 the protecting properties the most perfect state of trees. — 1st. 

 Preparation of single trees. Improvements on Lord Fitzhar- 

 ding's method. Methods suited to various objects, and various 



