href="@public@vhost@g@gutenberg@html@files@37224@[email protected]#CHAPTER_VI_III" class="pginternal" tag="{http://www.w3.org/1999/xhtml}a">How the blood becomes the vital part of the body.  35

PART IV.

LIGHT AND DISTANCE.

• 1. Something about illumination.  49
  2. The illumination of the planets by the sun.  52

PART V.

THE WONDERS OF ASTRONOMY.

• 1. A wonderful discovery.  57
  2. The main support of Leverrier's discovery.  60
  3. The great discovery.  63

PART VI.

METEOROLOGY.

• 1. Something about the weather.  69
  2. Of the weather in summer and winter.  73
  3. The currents of air and the weather.  75
  4. The firm rules of meteorology.  78
  5. Air and water in their relations to weather.  81
  6. Fog, clouds, rain, and snow.  84
  7. How heat in the air becomes latent, and how it gets free again.  87
  8. Latent heat produces cold, free heat produces warmth.  90
  9. Rules about the weather, and disturbances of the same.  93
  10. The changeableness of the weather with regard to our geographical position.  96
  11. About the difficulty and possibility of determining the weather.  98
  12. The false-weather prophets.  101
  13. Has the moon influence upon the weather?  103

PART VII.

OUR ARTICLES OF FOOD.

• 1. The rapid renewal of the blood is an advantage.  109
  2. Digestion.  112
  3. Coffee.  114
  4. Coffee as a medicine.  117
  5. Usefulness and hurtfulness of coffee.  119
  6. Breakfast.  121
  7. Liquor.  125
  8. Injuriousness of drinking liquor.  131