PART IV. TIMBER ESTIMATING 



SECTION I. INTRODUCTION 161 



SECTION II. INSTRUMENTAL HELPS 162 



SECTION HI. HEIGHT MEASUREMENT 165 



SECTION IV. VOLUME TABLES AND TREE FORM . . . 167 



SECTION V. PRACTICE OF TIMBER ESTIMATING ... 173 



A. Small and Valuable Tracts 174 



B. Larger and Less Valuable Tracts 186 



1. Type and Plot System 187 



2. The Strip System 188 



3. Line and Plot System 192 



C. Summary 195 



D. Pacific Coast Methods . . . . 196 



