Chapter XXIV: Still Waters 179

Chapter XXV. Anaximenes and the Air 187 Chapter XXVI. Winds and Clouds 192 Chapter XXVII. Heracleitus and the Cosmic Fire 203 Chapter XXVIII. Fire and the Sun 211 Chapter XXIX. Light and Darkness 222 Chapter XXX. The Expanse of Heaven--Colour 228 Chapter XXXI. The Moon--A Special Problem 235 Chapter XXXII. Earth, Mountains, and Plains 242 Chapter XXXIII. Seasons, Vegetation, Animals 248 Chapter XXXIV. Pragmatic 257