VI PREFACE 



The Light: Assimilation. — Thirst for light.— Climbers.— Protection 

 from intense light. 



The Soil: Whether porous or not, whether manured or not. — 

 Geological formations. — Mangrove.— Flora of dunes. — Epiphytes and 

 Parasites.— Saprophytes and Carnivorous plants. — Symbiotic plants. 



The Air: Mechanical and physiological effects of the wind.— 

 Strength of Stems. — Rarification of air in high mountains. 



I am deeply convinced that Botany is pre-eminently 

 the branch of Science most fitted for the young. And if 

 by putting forth this book I have done anything to rouse 

 the interest of those who teach and those who learn for 

 this noble and pleasurable study, I shall have been largely 

 rewarded for my efforts. 



^<^ip^' I, Pfteiderer. 



October 31st, 1911. 



. PREFACE TO THE THIRD EDITION 



One is glad to know that there is an increasing demand 

 for this book and that the second edition is exhausted. 



It is evident that a large number of students are 

 learning Botany by the aid of this book. I hope the}^ 

 will find that the many alterations made b}^ the author 

 in this edition will not only greatly assist them in their 

 study, but also make this subject even more attractive. 



Hassan, Mysore Stale. A. BrOCkhailk. 



September 1910. 



