CONTENTS. XV 



PART III. 



PAGE 



PRINCIPLES OF FOREST WORKING PLANS . . . 171 

 INTRODUCTORY 173 



CHAPTER I. 



THE INCREMENT . . . . . . 178 



SECTION I. QUANTITY INCREMENT 178 



1. Progress of Volume Increment . . . . . . . 178 



2. Quantity Increment per cent 184 



3. Yield Tables for the Scotch Pine 188 



SECTION II. QUALITY INCREMENT 192 



SECTION III. PRICE INCREMENT 19 



SECTION IV. ADDITION OF THE SEVERAL INCREMENT PER CENTS. 



LEADING TO THE FOREST PER CENT 196 



CHAPTER II. 



THE ROTATION 200 



1. The Financial Rotation 200 



Financial Yield Table for Scotch Pine . 202 



2. Rotation of the Highest Income 207 



3. Rotation of the Greatest Production of Volume .... 208 



4. The Technical Rotation 209 



5. The Physical Rotation 210 



6. Choice of Rotation 211 



CHAPTER III. 



THE NORMAL AGE CLASSES . . . .212 



1. The Annual Coups or the Area to be cut annually . . . . 213 



2. Size of the Age Classes 215- 



3. Distribution of the Age Classes over the Forest 227 



CHAPTER IV. 



THE NORMAL GROWING STOCK . . .231 



1. Calculation of the Normal Growing Stock as regards its Volume . 232 



2. Calculation of the Financial Value of the Growing Stock . . . 239- 



