CONTENTS 



IX 



CHAPTER XX 

 TYPES OF CRYPTOGAMS ; THALLOPHYTES . 



CHAPTER XXI 

 TYPES OF CRYPTOGAMS ; BRYOPHYTES 



CHAPTER XXII 

 TYPES OF CRYPTOGAMS ; PTERIDOPHYTES . 



CHAPTER XXIII 

 THE EVOLUTIONARY HISTORY OF PLANTS . 



PAGES 



. 235-276 



. 277-285 



. 286-297 



. 298-305 



PART II 



ECOLOGY, OR RELATIONS OF PLANTS TO THE WORLD 

 ABOUT THEM 



CHAPTER XXIV 

 PLANT SOCIETIES . 307-322 



CHAPTER XXV 



BOTANICAL GEOGRAPHY 



324-33$ 



CHAPTER XXVI 

 PARASITES, ENSLAVED PLANTS, MESSMATES, CARNIVOROUS PLANTS 336-344 



CHAPTER XXVII 

 How PLANTS PROTECT THEMSELVES FROM ANIMALS . 345-352 



