Sections in this Chapter:
| Section Title | |
|---|---|
| Section Title |
Questions for this Chapter —
- How may the essential proportion of oxygen be diminished?
- How is excess of carbonic acid (carbon dioxide) gas produced?
- Why do children, especially, need unvitiated, unimpoverished air?
- Show that children require solar light.
- Describe a physical ideal for a child and show the use of having such an ideal.