CONTENTS 



ACKNOWLEDGMENTS AND RESPONSIBILITY vii 



INTRODUCTION _ xi 



APOLOGY FOR CHAPTER I . xv 



CHAPTER I A GLOBAL VIEW . 1 



CHAPTER II How Do WE LIVE AND GROW ? _ 13 



CHAPTER III Do PLANTS HAVE QUALITY? .. 20 



CHAPTER IV ARE THERE ENOUGH PLANTS? _ 35 



CHAPTER V THE EVOLUTION OF PLANTS .. 48 



CHAPTER VI THE EVOLUTION OF ENVIRONMENT __ 57 



HAPTER VII RELATIONS BETWEEN PLANTS AND ENVIRONMENT . 68 



CHAPTER VIII LIFE AND THE NATURAL LAWS .. 83 



CHAPTER IX THE PROBLEM OF MAINTAINING THE CLIMAX ._ 92 

 APPENDIX A EDUCATIONAL IMPLICATIONS _ _ 108 



APPENDIX B CLASSROOM ACTIVITIES .. .. 113 



INDEX .. . 125 



