CONTENTS 



§ 10. The Nature and Action of Gastric Juice. 



11. The General Arrangement and Structure of the In- 



testines. 



12. The Structure of the Villi. 



13. The Structure of the Pancreas and its Changes during 



Secretion. 



14. The Nature and Action of Pancreatic Juice. 



15. The Nature and Action of Bile. 



16. The Changes Food Undergoes in the Intestines. 



17. Absorption froiri the Intestines. 



Part II.— Food assd Nutrition 



§ 1. Some Aspects of Nutrition. 



2. Some Statistics of Nutrition. 



3. The Economy of a Mixed Diet. 



4. The Effects of the several Food-stuffs. 



5. The Erroneous Division of Food-stuffs into Heat- 



producers and Tissue-fonners. 



6. The Income and Expenditure of Energy. 



LESSON vn 



MOTION AND LOCOMOTION. Pp. 285-339 



§ 1. The Source of Active Forcer and the Organs of 



Motion. J! m- 



2. Ciliated Epitnelium and Actwn oj ^^vx. 



3. The Structure of Unstriated Muscle. 



4. The Str^tctnre of Striated Muscle. 



5. The Chemistry of Muscle. 



6. The Phenomena of Muscular Contraction. 



7. The Tetanic Contraction of Muscles. 

 8 The Various Kinds of Muscles. 



e". The General and Minute Structure of Bone. 



