X THE DEVELOPMENT OF BRITISH FORESTRY 



22. White American Spruce at 1500 feet— Pennines, Facing i^age 119 



23. Grazed Spruce Forest — Bavarian Alps — 5000 



feet, ,,119 



24. Maritime Pine amongst natural scrub — West 



Coast of Ireland, . . . . . ,,119 



25. Mountain land denuded of surface soil, . . ,,122 



26. Section of Millstone Grit, surface carrying good 



Scots Pine, .,127 



27. Gravel subsoil producing good timber, . . „ 127 



28. Boulder-strewn surface carrying natural scrub, „ 128 



29. Larch and Spruce on boulder-strewn slope, . ,, 128 



30. Beech Clump on site of chalk-pit — Wiltshire 



Downs, ....... „ 131 



31. View inside Clump shown in Fig. 30, . . ,, 131 



32. Pocket of good soil on rock surface, . . ,,134 



33. Larch on boulder-strewn surface, . . . ,,134 



34. Ash, Sycamore, and Scots Pine on weathered 



limestone, . . . . . • ,,134 



35. Surface covered with ' detritus ' in Donegal, . ,, 136 



36. Peat bog in hollow on mountain land, . . ,, 136 



37. ' Elfin ' growth of Scots Pine on shallow soil — 



800 feet, ,,137 



38. Mountain Pine covering 'talus' below snow 



line— 7000 feet— Bavarian Alps, . . „ 137 



39. Surface covered with grass and herbaceous 



plants — 6000 feet — Bavarian Alps, . . ,, 139 



40. Peat-covered .slopes on Pennines — 2000-3000 



feet, ,,139 



41. Natural channels in mountain peat resting on 



boulder clay— 2000 feet, . . . . ,,142 



42. Surface denudation on hillside — West High- 



lands, . . . . . . . ,,142 



43. Scots Pine on 'high' bog — Ireland. Trees in 



background shown in Fig. 44, . . . ,,145 



44. Scots Pine on ' cut-away ' bog, ... ,, 145 



45. Roots of Scots Pine in mountain peat — Donegal, ,, 146 



46. Natural Birch on bog, ,,146 



