PART III.

NUTRITION.

I. Nothing but milk. 21

II. Man the transformed food. 24

III. What strange food we eat. 26

IV. How nature prepares our food. 29

V. What becomes of the mother's milk after it has entered the body of the child. 32

VI. How the blood becomes the vital part of the body. 35

VII. The circulation of matter. 38

VIII. Food. 41

IX. About nutrition. 44