CONTENTS 



Page 



INTRODUCTION 1 



SOURCE AND NATURE OF DATA 2 



RESULTS 4 



DISCUSSION AND CONCLUSIONS 26 



PUBUCATIONS CITED 27 



APPENDIXES 31 



Details of Methodology 32 



I. —Total Stem Gross Cubic Foot Volume — Uaforked Trees . . 32 



II. —Total Stem Gross Cubic Foot Volume—Forked Trees ... 33 



III. —Merchantable Gross Cubic Foot Volume — Uaforked Trees . 33 



IV. — Merchantable Gross Cubic Foot Volume — Forked Trees . . 35 

 V. — Gross Cubic Foot Stump Volume — Unforked and Forked 



Trees 35 



VI. — Gross International 1/4-Inch Board Foot Volume — 



Unforked Trees 35 



VII. — Gross International 1/4-Inch Board Foot Volume — 



Forked Trees 37 



VIII. — Gross Scribner Board Foot Volume — Unforked Trees ... 38 



DC. — Gross Scribner Board Foot Volume — Forked Trees .... 39 

 X. — Probability of a Tree Being Unsound in Cubic Foot 



Volume — Unforked and Forked Trees 39 



XI. — Fraction Cull in Total Stem Cubic Foot Volume Given the 



Tree is Unsound — Unforked and Forked Trees 40 



XII. — Fraction Cull in Merchantable Cubic Foot Volume Given the 



Tree is Unsound — Unforked and Forked Trees 41 



XIU. — Probability of Tree Being Unsound in Board Foot Volume — 



Unforked and Forked Trees 42 



XIV. — Fraction Cull in International 1/4-Inch Board Foot Volume 



Given the Tree Is Unsound — Unforked and Forked Trees . . 43 

 XV. — Fraction Cull in Scribner Board Foot Volume Given the 



Tree Is Unsound — Unforked and Forked Trees 43 



