CONTENTS xvii 



PAGE 



Contact Receptors Participate in Memory 159 



Association 159 



The Control of Activity in the Higher Animals 161 



Instinct 162 



Behaviour Determined by Nervous Organization 163 



Habit Formation 164 



Consciousness or Awareness 165 



The Feelings or Emotions 165 



Bodily Changes in Emotion 166 



The Reproductive Instinct 168 



CHAPTER XVI 



Chemical Correlation 



The Necessity for Gradual Adjustments 169 



Chemical Adjusters 170 



iiasic and Growth Metabolism Chiefly Affected 170 



Chemical Correlation in Plants 170 



Chemical Correlation in Animals 171 



Hormone-Manufacturing Glands 171 



Hormones Which Affect Basic Metabolism 172 



The Thyroid Hormone 172 



The Hormones Affecting Growth Metabolism 173 



The Hormones of the Pituitary Body 173 



The Interstitial Hormone 174 



The Hormones Affecting Functional Metabolism 174 



The Pancreatic Hormone -. 174 



Hormones Affecting both Basic and Functional Metabolism.. 175 



The Hormone of the Adrenals 175 



The Regulation of Adrenalin Secretion 176 



The Effect of Adrenalin on Muscular Power 177 



The Effect of Adrenalin on Basic Metabolism 177 



The Relation of Hormones to Racial Characteristics 177 



Summary 178 



CHAPTER XVII 

 Diseases Due to Maladjustment 



Definition of Disease 179 



Maladjustments 179 



Nature of Disease 180 



Symptoms of Disease 180 



Symptoms Due to Changes in Rate of Metabolism 181 



Symptoms Due to Alteration in the Character of Metabolism. . 181 



Impaired Hormone Control 182 



Under-Activity of the Thyroid 182 



Over- Activity of the Thyroid 184 



Pituitary Gland Impairment 184 



Diabetes 184 



Impaired Nervous Control 185 



Impairments Due to Tissue Destruction 185 



