Part I. Physiology.

CHAPTER I. PAGE PROTOPLASM. 1

CHAPTER II. ABSORPTION, DIFFUSION, OSMOSE. 13

CHAPTER III. HOW PLANTS OBTAIN WATER. 22

CHAPTER IV. TRANSPIRATION, OR THE LOSS OF WATER BY PLANTS. 35

CHAPTER V. PATH OF MOVEMENT OF WATER IN PLANTS. 48

CHAPTER VI. MECHANICAL USES OF WATER. 56

CHAPTER VII. STARCH AND SUGAR FORMATION. 60 1. The Gases Concerned. 60 2. Where Starch is Formed. 64 3. Chlorophyll and the Formation of Starch. 67

CHAPTER VIII. STARCH AND SUGAR CONCLUDED; ANALYSIS OF PLANT SUBSTANCE. 73 1. Translocation of Starch. 73 2. Sugar, and Digestion of Starch. 75 3. Rough Analysis of Plant Substance. 79