I. \DI.X 



351 



Slash, disposal of, 25, 29, 49, 116, 210, 



215 



disposal of, protects against fire, 261 

 disposal of, to control fungi, 278 

 hardwood, 216 

 light burning, 227 

 lopping of, 225, 230 

 methods of disposal, 220 

 piling and burning of, 221, 229, 232, 



234 



piling of, 220, 230 



pulling the tops, 226 



rotted by fungi, 277 



selecting the method of disposal, 232 



silvicultural effects of, 215 

 Slash pine, 58 

 Snow, damage by, 279 

 Snowslides, 41, 56, 77, 102 

 Society of American Foresters, i, 154 

 Soil, effect of grazing upon, 285 



injury by fires, 247 



injury by light burning, 227 



slash in relation to, 216, 232 



treatment of, 26, 30, 50, 57, 63, 116 

 Southern pines, 42 

 Spacing, 20, 199 



Special methods of thinning, 183 

 Sprout method, in 

 Sprout reproduction, 119 

 Sprouting ability, 113, 115 

 Spruce, Norway, 41 



red, 80, 184 



Squirrels, protection against, 294 

 Stagheadedness, 279, 280 

 Standard crown classes, 155 

 Standard reproduction methods, n, 



15, 16, 142 



Standards, 1.27, 132, 134, 138 

 Stands, evenaged, 25, 45, 98, 104, 143, 

 178 



life history of evenaged, 159 



location of, 31 



minimum size of, 13 



Stands, natural development of, 153 

 protrc lion of, 6 



imtnt of, during period of re- 

 K'encnition, 5, n 

 .t merit of, during that period of 

 rotation not included in period 



a ion, 6, 26 

 two-storied, 45 

 unevenaged, 83, 91, 105, 143, 178, 



213 



State Forests of Connecticut, 259 

 State Forests of I : 

 Strips, clearcutting in alternate, 32 

 irregular, 37 

 progressive, 32, 35 

 selection, 98 

 shelterwood, 66, 68, 69 

 Struggle for existence, 153, 158, 178, 



194 



Stumps, low, 114 

 Sunscald, injury from, 196 

 Suppressed trees, 156, 162, 172, 175, 



177 



Surface fires, 250 

 Sustained annual yield, 90 

 Switzerland, 106 

 System, silvicultural, u 



Terminology, forest, i, 299 

 Thinning, 134, 142, 143, 144, 153, IQ* 



advantages of, 156 



amount removed in, 163, 175, 182 



application of, 185 



assists in securing reproduction, 34 



Borggreve's method of, 162, 177, 

 1 88 



French method of, 162, 172, 188 



German method of, 162, 188 



grades of, 162 



in plantations, 189 



increases yield, 157 



interval between, 186 



keeps the stand healthy, 159 



