TEXT FIGURES. 7 



PAGE 



Figs. 95 to 98 inc. Curves showing average volume in board feet contained in 

 16' butt logs from immature and mature western yellow pine 

 trees of different diameters breasthigh 86 



Figs. 99 to 13 8 inc. Curves showing average volume in board feet of each grade 

 actually sawed out at mill from 16' butt logs of immature and 

 mature western yellow pine trees of different diameters breasthigh 90 



Figs. 139 to 144 inc. Grades sawed from 16' butt logs of immature and mature 

 trees of different diameters breasthigh, expressed in totals sawed 



ou t _ 102 



Figs. 145 to 150 inc. Value of grades sawed from 16' butt logs of immature and 

 mature western yellow pine trees of different diameters breasthigh 

 expressed in dollars and cents . : 104 



Figs. 151 to 188 inc. Curves showing average volume in board feet of each grade 

 actually sawed out at mill from top logs of immature and mature 

 western yellow pine trees of different diameters breasthigh 106" 



Figs. 189 to 192 inc. Value of grades sawed from top logs of immature and 

 mature trees of different diameters breasthigh expressed in dollars 

 and cents US- 



Figs. 193 to 198 inc. Diagrams showing the high, intermediate and low grades 

 sawed from top logs, whole trees and butt logs, of immature and 

 mature trees of different diameters breasthigh, expressed in per 

 cent of total sawed out 120 



Figs. 199 to 208 inc. Curves showing how much the actual mill cut overran the 



Spaulding Log Rule -- 124 



Fig. 209. A graphic representation of the average volume in board feet of each 



grade sawed from immature trees of different diameters breasthigh 164 



Fig. 210. A graphic representation of the average per cent of each grade based 

 upon total volume sawed out from immature trees of different 

 diameters breasthigh -- 165 



Fig. 211. A diagram showing the average total yield in cubic feet of lumber 

 and by-products from mature trees of different diameters breast- 

 high 166- 



Fig. 212. A diagram showing the yield of lumber and by-products in per cent 

 of average total yield from mature trees of different diameters 



bivusthiirh - 16& 



