CONTENTS 



INTRODUCTION 



PLANTS AND OURSELVES .... 

 Section i. Our dependence upon plants . 

 Section 2. Our enjoyment of plants . 

 Section 3. Plants in spring 

 Section 4. 

 Section 5. 



Plants and history . 



The improvement of crops 



THE STUDY OF PLANTS 

 Section 6. Reasons for it 



Ways of doing it 

 Your first plant study 

 Later studies . 

 The notebook . 

 The textbook . 



Section 7. 

 Section 8. 

 Section 9. 

 Section 10. 

 Section n. 



PACK 



1 



1 



4 



10 



11 



15 



18 

 18 

 21 

 24 

 29 

 31 

 34 



CHAPTER ONE: THE PLANT 

 A GENERAL EXTERNAL VIEW 



Section 12. Seed plants and other plants . 



Section 13. Plant life and ours ..... 



Nutrition and reproduction . 

 Section 14. Nutrition . . 



A. Food 



B. Digestion and assimilation 



C. Photosynthesis .... 



D. Organs and functions 



E. Protection 



Section 15. Roots 



Section 16. Stems . 



Uses of stems to man .... 

 Section 17. Leaves 



38 

 38 

 40 

 40 

 41 

 42 

 43 

 44 

 45 

 45 

 49 

 52 

 53 



