X 
CONTENTS. 
Page 
That roots have no pith an error - - - 123 
There is no true circulation of the sap, like that of the 
blood of animals - - - - - 125 
CHAPTER IV. 
Miscellaneous - - - - - 127 
Barked horse-chestnut at Esher - - - 127 
Best time for transplanting with the ball of earth - 133 
The growth in girthing descending from the head or 
any particular branch is general round the stem ; but 
it is greatest on the side proper to the branch - 138 
And the growth may be mechanically and continually 
turned from one side of the stem to the other - 138 
Lateral upward growth of the root - - - 139 
Origin of spurs and the swell of the roots - - 143 
A tap-rooted tree should have no spurs or swell of the 
root ------ 145 
Girthing of the stem dependent on the quantity of 
branches above it - - - - 146 
There is a constant circulation of sap even in winter - 148 • 
If so, coppice-wood should be cut as late in winter as 
possible - - - - - -149 
Best time for felling timber - - - - 152 
Roots should not be covered deeply - - - 152 
That a hill affords no more space for growth than its 
base would, an error - - - - 153 
Effect of wind on trees - 155 
Effect of sea breeze mechanical, not chemical - - 156 
PART III. 
Are soils enriched, impoverished, or poisoned by 
VEGETABLE GROWTH? THESE QUESTIONS INCLUDE, 
EXCRETION OF ROOTS; SOCIABILITY OF PLANTS; AC¬ 
CUMULATION OF SOIL IN WOODS ; GENERAL DENU¬ 
DATION OF SOIL FROM WASH OF RAIN - - 158 
