524 INDEX 



PAGE 



Application of graphic method in constructing volume tables 169 



of yield tables in predicting yields 322 



Appolonian paraboloid 19 



Appraisal, timber as distinguished from forest survey 269 



Arbitrary standards in constructing log rules 49 



Area determination, importance in timber estimating 267 



for age groups on basis of diameter groups 422 



for two age groups on basis of average age 419 



of plots in yield tables 397 



separation of in yields 416 



imits, size, relation to per cent of area to be estimated 262 



Areas determined from density factor 416 



of circles, table LXXVIII 490 



of cross sections 17 



of crowns 423 



of different types, separation, method 290 



of immature timber, growth on 451 



separation of, effect on density 453 



Arkansas, statute log rule 68 



Average age, basis for determining volume and area of two age groups 419 



definition and determination 337 



Average board-foot volume, tree containing 311 



diameter growth, determination 346 



heights of timber and site classes 291 



heights of tfees based on diameter 258 



log method of estimating 143 



stand per acre from partial estimate 260 



trees, age, determining 339 



trees, volume and diameter, determination of 338 



Averages employed in timber estimating, six classes of 258 



Ballou log rule 75 



Barbow cruising compass 248 



Bark as a waste product 13 



as affecting diameter in volume tables 150 



marks, log 99 



measurement in cords 134 



volume of 163 



width, measurement for volume 161 



Basal area, definition 7 



areas, table LXXVIII 490 



use in predicting yields 415 



Base line 281 



Basis for board-foot volume tables 182 



for cordwood converting factors 127 



of determining dimensions of the frustum 219 



Baughman log rules 72 



Bangor log rule 85 



Baur's method of constructing yield tables 396 



Baxter log rule 67 



