x CONTENTS. 



CHAPTER VIII. 

 (LESSON 15.") 



PAGE 



The Vascular System : the Blood . .95 



CHAPTER IX. 



(LESSON 16.) 

 The Vascular System continued : Heart ; Arteries ; Veins ; Capillaries . 103 



CHAPTER X. 



(LESSONS 17 AND 18) 



The Vascular System continued : Arterial Distribution j Venous Return . 115 



CHAPTER XI. 



(LESSON 19.) 

 The Vascular System continued : the General Circulation ; the Pulse and 



Arterial Pressure ; Variations in the Capillary Circulation . . . 131 



CHAPTER XII. 

 (LESSONS 20 AND 21.) 

 The Vascular System concluded : Lymphatic Vessels and Lymph ; 



Lymphatic Glands and Bodies of Allied Structure .... 141 



CHAPTER XIII. 



(LESSONS 22 AND 23.) 



The Respiratory Apparatus : Larynx ; Trachea ; Lungs ; Respiration ; 

 Effects of Respiration upon the Air within the Lungs ; upon the Air 

 outside the Body ; upon the Blood ; Modified Respiratory Movements 151 



CHAPTER XIV. 

 (LESSONS 24 AND 25.) 



Alimentation : Section 1. Preliminary Remarks on Secreting Glands and 

 Mucous Membranes. Section 2. Food ; Food Principles ; Proteids, 

 Fats, Carbo-hydrates, Water, Saline and Mineral Matters ; Chemical 

 Composition of the Body ; Average Composition of Milk, Bread, and 

 Meat ; Concluding Remarks 164 



CHAPTER XV. 



(LESSONS 26 AND 27.) 

 Alimentation continued : the Digestive Apparatus ; Alimentary Canal ; 



Accessory Organs 175 



CHAPTER XVI. 



(LESSONS 28 AND 29.) 



Alimentation concluded : Digestion ; Changes the Food undergoes in the 

 Mouth, Stomach, Small and Large Intestines ; Summary of Digestion ; 

 Absorption 191 



