222 



INDEX 



Soil, depth of, 30. 



effect of, on tree growth, 29. 



examination of, 35. 



improving species, 34. 



porosity of, 31. 



moisture in, 31. 

 Soils, classification of, 29. 

 Sowing in the forest, 60. 



season for, 57. 

 Species, list of, 19. 

 Spruce gall aphis, 122. 



Norway, notes on, 174. 



Sitka, notes on, 175. 

 Squirrels, 109. 

 Stagheadedness, 42. 

 Stamens, 14. 

 Starch, formation of, 8. 

 Stigma, 15. 

 Stomata, 10. 

 Storms, 140. 



Struggle for existence, 74. 

 Style, 15. 



Sugar, formation of, 8. 

 Suppressed trees, 75. 

 Sycamore, notes on, 160. 

 Sylviculture, definition of, 7. 

 Sylvicultural systems, 83. 



Tending of woods, 73. 

 Thinning, 73. 



advantages of, 74. 



of mixed woods, 76. 



Tortrix viridana, 119. 

 Trametes radiciperda, 131. 

 Transpiration, 10. 

 Tulip-tree, notes on, 161. 

 Turkey oak, notes on, 157. 

 Two-storied high forest, 87. 



Underplanting, 43. 



Uses of British timber, 216. 



Voles, 109. 



Walls, 184. 



Walnut, notes on, 161. 



Weeding, 69. 



Weeds, 125. 



Weymouth pine, notes on, 172. 



White alder, notes on, 149. 



ash, notes "on, 1 50. 

 Willows, notes on, 162. 

 Wind, protection against, 26, 140. 

 Winged seeds and fruits, 16. 

 Wire fences, 181. 

 Witches' broom, 133. 

 Wood, structure of, 12. 

 Woods, tending of, 73. 

 Working circle, 212. 

 Working plans, 204. 

 Wych-elm, notes on, 153. 



Yew, notes on, 175. 



Oxford : Printed at the Clarendon Press by Horace Hart 



