238 



INDEX 



Selection method of treatment, 



97- 



Sepals, 14. 



Shade-bearing species, 28. 

 Silver fir canker, 132. 



notes on, 167. 

 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. 

 Survey of waste lands, 223. 

 Sycamore, notes on, 160. 

 Sylviculture, definition of, 7. 

 Sylvicultural systems, 83. 



Tending of woods, 73. 

 Thinning, 73. 



Thinning, 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. 



Volume statement, 203. 



Walls, 184. 



Walnut, notes on, 161. 



Waste lands, afforestation of, 223. 



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. 



Printed in England at the Oxford University Press 



