INDEX 531 



PAGE 



Diameter growth of trees growing in stands, factors influencing 351 



on sections, measurement of 342 



purpose of study 342 



relation to volume growth 374 



spruce. Table LI 345 



harmonized curves for volume based on 169 



in determination of log grades 459 



instruments for measuring 227 



of average trees, determining 338 



of log, relation to per cent of utilization in sawed lumber 40 



tape 229 



Diameters, abnormal 18 



and areas of cross sections 17 



bark as affecting, in volume tables 150 



measured at ends of log 22 



at middle of log 23 



point of measurement, in volume tables 148 



scaling 92 



Dimensions of frustum, basis, in form factors 219 



of stick, effect of, on solid contents of stacked wood 126 



of tree containing average board-foot volume 311 



Diminishing numbers, law of 318 



Direct ocular estimate of total volume in stand 256 



Discounting for defects in cordwood measure 133 



Distances between strips in estimating 264 



Doyle-Baxter log rule 77 



Doyle log rule 68 



rule, errors in, effect upon scaling and over-run 70 



-Scribner log rule 76 



Dominant tree, definition 158 



Drew log rule 85 



Durability 466 



Dusenberry log rule 85 



Economic age of trees 34I 



Edgings, waste from 50 



Effect of dimensions of stick on solid contents of stacked wood 126 



of errors in Doj'le rule upon scaling and over-nm 70 



of irregular piling on solid contents of stacked wood 124 



of losses versus thinnings upon yields 324 



of minimum dimensions of merchantable boards upon deductions in scaling 107 



of seasoning on volume of stacked wood 123 



of variation in form of sticks on solid contents 125 



Empirical density of stocking 413 



yield tables 396 



use of 413 



English system of measurement 6 



Errors in Doyle rule, effect upon scaling and over-run 70 



in use of Biltmore stick 232 



of cubic rules for board-feet 42 



