CONTENTS 
CHAPTER 
I INTRODUCTORY . . . 
Il. CHARACTERISTICS, STRUCTURE AND LIFE “OF 
TREES - 
STRUCTURE . . 
GROWTH AND Form DEVELOPULNT 
PHYSIOLOGICAL POINTS 
ECOLOGICAL POINTS 
RECUPERATIVE CAPACITY - 
III. DISEASE AND DEATH OF TREES GENERALITIES 
Oup AGE 
GENERAL CAUSE OF DIse ASE 
FuNGuS DISEASES 
InsEcT DAMAGE 
IV. DIAGNOSING DISEASES . 
InsEct DAMAGE . . . 
FUNGUS AND BACTERIAL DISEASES 
PHYSIOLOGICAL DISEASES 
EFFECT OF Sort CONDITIONS 
ATMOSPHERICAL INFLUENCES 
OBNOXIOUS GASES 
ELECTRIC CURRENTS . 
LIGHT CONDITIONS 
MECHANICAL INJURIES . . 
V. CONTROL OF PHYSIOLOGICAL DISEASES AND 
TREATMENT OF MECHANICAL INJURIES: — 
GENERAL CARE OF TREES. . 
Sor, [ImpROVEMENT 
FERTILIZING - 
POINTS IN GRADING - 
PRUNING AND TRIMMING . 
MANNER OF OPERATION. . . . | - 
CALLUSING AND REPAIRING. - . . - - 
SPECIFIC RULES . . . . . - 
PRUNING FOR BALANCE,-. - - + - 
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