250 



INDEX 



Soil of wooded areas, ]ireservin{r, 

 20(j 



— , i)}iysical character of, import- 

 ant lor pi'oiluiM ion of trees, 

 114 



Soulanjic's magnolia, 121 



Si)eciRcations for street tree, l."!! 



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, 1(57 



— for tree nursery, 132 

 Surface wountls, 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 



— microi^hylla, 119 

 Tobacco water, 139 

 Tools used in pruning, 163 

 Toxylon jwmiferum, 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 

 — , cofTee, 120 

 ■ — diseases, 153 



— diseases, eiTects of, as destroy- 



ers and upbuilders, 239 



