LIST OF ILLUSTRATIONS 



PART I In Colour 



ELECTRICAL STRUCTURE AND FUNCTION IN PLANT LIFE 



PART I Black and White 



FIG. PAGE 



22. Section of Horse-Chestnut . . . . .23 



23. Section of Horse- Chestnut , . . . . .24 



24. Showing how Induction takes place . . . .25 



25. Section of Horse- Chestnut Seed . . . . .26 



26. Horse-Chestnut Seed . . . . . .26 



27. Sections of Horse-Chestnut Seed . . . . .27 



28. Section of Edible Chestnut . . . . .30 



29. Section of Edible Chestnut . . . . .30 



30. Acorns ... .... 32 



31. Double Acorn in Section ..... 88 



82. Cluster of Cob-Nuts ...... 34 



88. Foliage and Cup of Cob-Nut opened out . .84 



xi 



