POLARITY IN LIFE.
Contrast of living and dead—Eating and being eaten—Trace matter upwards and life downwards—Colloids—Cells—Protoplasm—Monera—Composition of protoplasm—Essential qualities of life—Nutrition and sensation—Motion—Reproduction—Spontaneous generation—Organic compounds—Polar conditions of life 76
A Modern Zoroastrian · The Wunder Library — complete classics, free to read, with narration.