314 



INDEX 



Reforestation, methods of, 67, 



68,72 



nursery practice in, 69 

 Reproduction, artificial, 67 



natural, 65 



seed, 42, 43, 44 



sprout, 46, 66 



sucker, 46 



Sagebrush, 272 

 Sawmill, 132 



mill pond in a, 132 



seasoning lumber in a, 148 

 Seed, dissemination of, 43 



germination of, 44 



production of, 42, 44 



years, 42 

 Sequoia, 196, 291 

 Service berry, 248 

 Shad bush, 248 

 Shade trees, care of, 159, 163 



choice of, 161 



list of, 162 



surgery of, 164 



value of, 157 

 Shellbark, 204, 293 

 Shrubs, 240 



description of, 240 



identification of, 240 

 Softwoods, consumption of, 278 



defined, 179 



described, 281, 289 



identification of, 282 

 Soil, conservation of, 23 



erosion of, 14, 15, 24, 34 



exhaustion of, 65, 66 



influence of, on durability, 58 

 on growth, 38 



influence of forests on, 40 



requirements in, for germin- 

 ation, 44 



Spruce, 190, 290 



in paper making, 139 

 State forest experiment sta- 

 tions, 172, 173 

 State forestry, 172 



state-wide education in, 173 

 Sycamore, 226 

 Sumac, 246 

 Sweet bay, 222 



Tamarack, 188, 290 



Thornbush, 268 



Timber estimating, heights, 114 



methods of, 109, 295 



need of, 107 



ocular, 108 



tree contents, 115 



volume table for, and use 



of, 295 

 Trees, dimensions of, 289 



enemies of, 102 



felling, 124 



growth requisites of, 37 



identification of, 180 



method of growth of, 4 



parts and functions of, 39 



reproduction of, 42, 46 



shade, 156 



surgery of, 164 



undesirable, 161 



uses of, 289 



need, 64, 65 

 Tulip, 224, 293 



Veneer, manufacture of, 145 



Walnut, 202, 291 



Weeks Law, purpose of, 8, 173 



results of, 173 

 Willow, 208 

 Windbreaks, effect of, 15 



