CONTENTS. 



PAGE 



PART I. ON THE METHODS OF STUDY IN, AND THE NECESSARY EQUIPMENT 



FOR, A COURSE IN EXPERIMENTAL PLANT PHYSIOLOGY 2 



1 . Introduction 3 



2. Teaching and Learning 12 



3. Greenhouse and Laboratory 23 



4. Apparatus and Materials 31 



A. Apparatus Used in Common by all of the Students 32 



B. Chemicals Used in Common by all of the Students 35 



C. Appliances Needed by Each Student 36 



D. Plants 37 



E. Personal Effects of Each Student 38 



5 . Manipulation 38 



PART II. OUTLINE OF A COURSE IN EXPERIMENTAL PLANT PHYSIOLOGY 49 



Outline of the Course 50 



Division I. The Structure and Properties of Protoplasm 51 



Section I. The Composition of Protoplasm, Molar, Mechanical, Phy- 

 sical, and Chemical 51 



Section 2. The Relations of Protoplasm to External Conditions 53 



Section 3. The Power of Organism-building by Protoplasm 59 



Division II. The Physiological Operations of Plants : 61 



Section I . The Nutrition of Plants 61 



A. Absorption (<z) of Water and Dissolved Minerals 61 



(6) of Gases 72 



B. Transfer () of Water and Minerals 74 



(1)} of Elaborated Substances 77 



C. Transpiration 77 



D. Metabolism: (a) Photosynthesis 84 



(fr) Respiration 95 



(c) Nitrogen Assimilation 99 



(d) Use of Minerals 90 



(e) Formation of Special Substances, together 



with Storage, Secretion, and Excretion. . . 100 



Section 2. Growth 102 



A. Increase in Size 102 



B. Histological Differentiation and Assumption of Form 107 



C. Effects of External Conditions 107 



v 



f\ 1 (\ O 



