280 



INDEX 



Partial seeding, 70 



1'hysical qualities of soil, 5 



Piling, 182 



Pine-bark aphid, io() 



Pine, maritime, nitrogen accumulation, 



7 



Pine. Norway, silvicultural character- 

 Mies, 2\ 

 volume in board feet, 246 



Pine, pitch, silvicultural characteristics, 



23 



Pine, red, see Norway 

 Pine sawfly, 118 



Pine, Scotch, silvicultural character- 

 istics, 25 



Pine shoot moth, European, 108 

 Pine, white, average annual growth per 



acre by quality classes, 273 

 blight, 134 



blister rust, 20, 22, 74, 129 

 log rule for, 212 

 per cent of ash in dry leaves, 6 

 second growth, log rule for, 212 

 second-growth, volume in board feet, 



248 



second-growth, volume in cords, 249 

 silvicultural characteristics, 17 

 uses, 177, 179, 181, 183, 186 

 volume in board feet, southern N. H., 



247 



volume in cubic feet, 250 

 yield per acre for pure, even-aged 



second-growth stands, 271 

 yield per acre in lumber of pure even- 

 aged second-growth stands, 272 

 yield per acre in board feet, cords, and 



cubic feet, 272 

 Planing mill products, 178 

 Planting, 68 

 costs, 76 

 definition, 69 

 Poles, 181 



od coppice, 62, 64 



Polyporus schweinitzii, 128 

 Poplar disease, i 



Poplar, silvicultural characteristics, 42 

 uses, 179, 182, 183, 185, 186 



Posts, 181 

 Precipitation, 2, 4 

 Preparatory cuttings, 60 

 Pruning, 98 

 Puddling trees, 72 

 Pulpwood, 180, 183, 186 

 Pump for fire fighting, 153 

 Pure forests, n, 73 



Quality, soil, n 



Rabbits, 100 



Rainfall, 2 



Railroad ties, 181 



Red rot, 126 



Removal cuttings, 60 



Reproduction, artificial, 52, 53 



see also planting and seeding 



by sprouts, 62 



cutting, 77, 95 



estimating value, 159 



methods of natural, 49, 52 

 Root hairs, 3 

 Root systems, 5 

 Rotation, 51, 58, 63, 64 



Salvage cuttings, 77, 94 



Scribner log rule, 205 



Second-growth hardwoods, log rule for, 



213 



Seed cutting, 60, 66 

 Seeding, 68 



costs, 76 



definition, 69 

 Seed spot, 70 

 Seed tree method, 56 

 Selection forest, 15 

 Selection method, 49 

 Shelterwood method, 58 

 Shuttles, 179 

 Silvics, i 

 Silviculture, i 



Silvicullural characteristics, 17 

 Softwcxxi, 12, 175 

 Soil moisture, 2 

 Soil, quality, n 

 Sounding boards, 178 



