CONTENTS 



INTRODUCTION 



PLANTS AND OURSELVES .... 

 Section i. Our dependence upon plants . 

 Section 2. Our enjoyment of plants . 

 Section 3. Plants in spring 

 Section 4. Plants and history . 

 Section 5. The improvement of crops 



THE STUDY OF PLANTS .... 



Section 6. Reasons for it ... 



Section 7. Ways of doing it ... 



Section 8. Your first plant study 



Section 9. Later studies .... 



Section 10. The notebook .... 



Section n. The textbook .... 



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 



. 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 



