NUTRITION.
- [ Nothing but milk.] 21
- [ Man the transformed food.] 24
- [ What strange food we eat.] 26
- [ How nature prepares our food.] 29
- [ What becomes of the mother's milk after it has entered the body of the child.] 32
- [ How the blood becomes the vital part of the body.] 35
- [ The circulation of matter.] 38
- [ Food.] 41
- [ About nutrition.] 44
[PART IV.]
LIGHT AND DISTANCE.
[PART V.]
THE WONDERS OF ASTRONOMY.