VI CONTENTS. 



III. HOW THINNING PINE AND FIR PLANTATIONS SHOULD 



BE DONE, 144 



IV. VARIABLE EFFECTS OF THINNING, .... 147 

 V. GOOD EFFECTS OF THINNING, 153 



VI. EFFECTS OF THINNING ON ADVANCED PINE PLANTA- 

 TIONS, 157 



VII. EFFECTS OF THINNING ON YOUNG PLANTATIONS, . 168 

 VIII. EFFECTS OF THINNING ON ADVANCED HARDWOOD 



PLANTATIONS, 174 



IX. THINNING MIXED PLANTATIONS, . . . .177 



X. THINNING YOUNG HARDWOOD PLANTATIONS. . . 200 



XI. RULES FOR THINNING, 205 



SECTION III. PRUNING. 



I. INTRODUCTION, 209 



II. WHY PRUNE ? 213 



III. HOW TO PRUNE, 219 



IV. BENEFITS OF PRUNING, 238 



V. EVIL EFFECTS OF PRUNING, . . . . . 252 



vi. GAVIN CREE'S SYSTEM OF PRUNING, . . . 260 



VII. THE FRENCH SYSTEM OF PRUNING, .... 266 



VIII. EXPERIMENTS IN PRUNING, 284 



IX. ORNAMENTAL PRUNING, 288 



X. INSTRUMENTS FOR PRUNING, 293 



XL RULES FOR PRUNING, 300 



XII. CONCLUSION, 302 



INDEX, 313 



