250 



INDEX 



Soil of wooded areas, preserving, 

 206 



, physical character of, import- 

 ant for production of trees, 

 114 



Soulange's magnolia, 121 



Specifications for street tree, 131 



Specimens of wood, how to 

 identify, 222 



Split trees, 176 



Spray trees, how to, 138 



Spraying apparatus, 138 



foliage, 141 



for caterpillars, 145 



for fungous diseases, 160 



material, 138 



arsenate of lead, 138 

 kerosene emulsion, 139 

 lime-sulfur wash, 139 

 tobacco water, 139 

 whale-oil soap, 139 



trees, seasons for, 137 



trees, thoroughness essential, 



138 



Spruce and hemlock, descrip- 

 tion of, 11 



, black, 15 



, blue, 123 



, Oriental, 122 



, Norway, 13 



, white, 15 



Spruces, 224 



Star-shaped leaves, 93 



Stem, 106 



Stomata, 117 



Streets, trees for, 123 



Structure of trees, 106 



of woods, 217 

 Sucking insects, 4, 134 

 Sugarberry, 71 

 Sugar maple, 37, 121 



maple borer, 37 

 Suggestions for forming tree clubs, 

 242 



Suggestions for outdoor study of 

 trees, 234 



for planting little trees, 211 



for safety of tree climbers, 167 



for tree nursery, 132 

 Surface wounds, 168 

 Swamp maple, 43 



white oak, 74 

 Sweet birch, 66 



gum, 93, 231 

 Sycamore, 230 



maple, 44 



tree, 59, 60, 123, 230 



Tamarack, 29, 225 



Taxation, forest lands exempt 



from, 216 



Taxodium distichum, 30 

 Taxus baccata, 123 

 Thuja occidentalis, 22 

 Tilia americana, 95 



microphylla, 119 

 Tobacco water, 139 

 Tools used in pruning, 168 

 Toxylon pomiferum, 105, 128 

 Training a child to recognize 



trees, 237 



children in observation and 



precision, 237 

 Trametes pini, 27 

 Treating surface wounds, 168 

 Tree, ailing, how to tell an, 153 



and nature study, value of, 235 

 , beech, 59, 128, 231 



, birch, 59 



, blue beech, 59 



climbers, suggestions for safety 



of, 167 



clubs, suggestions for forming, 



242 

 , coffee, 120 



diseases, 153 



diseases, effects of, as destroy- 



ers and upbuilders, 239 



