LIST OF ILLUSTRATIONS 



" WlLBERFORCE " OAK AFTER TREATMENT Frontispiece 



" WILBERFORCE" OAK BEFORE TREATMENT to face page 4 

 DECAYING TREES IN BURNHAM BEECHES 4 



CROSS-SECTION OF A TREE STEM . . page 8 

 BAD EFFECTS OF PRUNING . . . 12 



PARTIALLY REPAIRED TREE . . to face page 14 

 FILLING A HOLLOW TRUNK . ,,14 



WOUND HEALING RAPIDLY .... page 19 

 WOUND HEALING OVER FILLING OF WOOD to face page 22 

 WOUND HEALING OVER CONCRETE FILLING 24 

 BEECH TREES ON HAMPSTEAD HEATH 26 



IRON BAND AND CONNECTING ROD . . page 31 

 A NEGLECTED AND BADLY BRACED TREE to face page 32 

 PROPER METHOD OF BRACING A TREE 32 



FORKED STEMS BRACED BY A CHAIN 38 



ELM TREE IN TOWER OF LONDON BRACED 



AND FILLED .... 38 



BRACING AN INJURED OAK . . ,,42 



PROPPING A HEAVY LIMB ... ,,42 



PROPPING A DECAYED TREE: KING JOHN'S 



OAK, KNOLE PARK, SEVENOAKS 44 



"DISHING" A TREE STEM . . 56 



ELM KILLED BY PILING EARTH ON ROOTS, 



AND ATTACKED BY STEREUM PUR- 



PUREUM ..... 58 



GOOD EFFECTS OF PRUNING A DISEASED 



TREE ...... 64 



