CONTENTS xi 



CHAPTER VI 



THE WIND AND THE FLOWEBS 



CHAPTER VII 



SELF-FERTILISED FLOWERS PAGB 



Round-leaved Mallow 178 



Spanish Bayonet 181 



CHAPTER VIII 



EFIORT AND ACCOMPLISHMENT 



Thorns and Prickles 189 



Burglar Insurance 192 



Rain Shelters 193 



Lures of Flowers 193 



Insects and Their Favourite Colours . 196 



Pollen 198 



CHAPTER IX 



SEED SOWING 



Pepper-box Seeds 205 



Air Gliders 207 



Airship Seeds 207 



Tumble Weeds 209 



Seeds Carried by Water 210 



Seeds Dispersed by Birds and Animals 212 



Edible Fruits and Seeds 214 



Poisonous Fruits 214 



Tramp Seeds 216 



Catapult Seeds 219 



Spider-flower 222 



