310 



FOKESTS, WOODS, AND TREES 



Reservoirs — 



dead leaves in, 76, 217 

 protection of, by tree belts, 76 

 silting of, 76 



Return as to Water Undertakings in 

 England and Wales, 104, 170 



Rigg, G. B., 19 



Rights of grazing, 103 



Roberts, C. H., 10 



Robinia Pseudacacia, 50, 65, 69, 169 



Rowley Regis School Plantation, 65 



Run-otf water, 6 



Ruskin, 73 



Sallx, various species, 167 

 Sallow, 167 



Salt spray carried inland, 19 

 Salt spray, injury to trees, 13, 19 

 Sanatoria in forests, 20 

 Sanatorium — 



Brompton Hospital, Frimley, 21, 22 



at Hairinyres, 27 



at Nordrach, 21 



Nordrach-on-Dee, 22 



Pinewood, Wokingham, 22 

 Sand dunes, afforestation of, 19, 124, 



126 

 Sanitary influence of forests, 13 

 School forestry societies, 66 

 School plantations, 62, 64 

 Scirpus moor. 111 

 Scots pine, 15, 98, 120, 123 

 Seed, selection of, 122, 141 

 Shale banks, planting of, 69 

 Sheep and shelter belts, 15 

 Sheep in larch woods, 117 

 Sheep on water catchment areas, 74 

 Shelter belts, 14, 24, 129, 139, 147, 



148, 156 

 Shelter for dairy farms, 18 

 Shelter of grazing land, 18, 19, 117, 



118 

 Shelter of sanatoria, 24 

 Silver fir, 93, 128 

 Slag heaps, 60, 69 

 Smoke, effect on trees, 45, 57, 95 

 Smoke of towns, 45, 178 

 Snow, influence of forests on, 5 

 Soil erosion, forest influence on, 1, 7 

 Soil in towns, 45 

 Soot and trees, 45, 54 

 Sowing on pit mounds, 62 

 Special adaptability, 82 

 Sphagnum moor, 111 



Springs, forest influence on, 7 

 Spruce — 



at high elevation, 31 



common, 15, 76, 93, 134 



Sitka, 94, 98, 136 



white, 115, 138 

 Staking trees, 55 

 Stevenson, R. L., 11 

 Stomata of leaves and soot, 54 

 Story, Prof. Fraser, 234, 239 

 Stream-flow, forest influence on, 10 

 Streets, planting of, 55 



trees for, 47 

 Sulphur dioxide and trees, 45, 58 

 Sycamore, 51, 63, 156 



Tarred roads and trees, 46, 58 

 Temperature, influence of forests 



on, 3 

 Thomson, Prof. James, 34 

 Thuya gigantea, 19, 42, 93, 133, 



145 

 Tilia, species of, 51 

 Timber line, 115 

 Town Planning Act, 38 

 Towns, parks in, 33 

 Towns, trees for, 48 

 Transpiration of oak forest, 3 

 Tree limit, 113 

 Trees— 



and altitude, 113 



and chemical works, 58 



choice of, 120 



damaged by shale industry, 69, 70 



damaged by soot and smoke, 45, 

 57, 95 



for water catchment areas, 119 



in towns, 44, 47 



injury by salt spray, 13 



leaves of, injured by wind, 19 



preservation of, 56 



wind effect on, 13 

 Tsuga albertiana, 144 

 Tuberculosis, sanatoria for, 21 

 Tulip tree, 47 

 Turpentine, eftect on phagocytosis, 



26 

 Typhoid cases and water supply, 77 



Ulex, 108 



Ulmus, species of, 52, 160 

 Underplanting, 144, 146, 157 

 Unemployed, planting by the, 87, 

 100, 195 



