THE NATURE AND WORK 

 OF PLANTS 



An Introductio7i to the Study of Botany 



BY 



DANIEL TREMBLY MACDOUGAL, Ph.D. 



DIRECTOR OF THE LABORATORIES, NEW YORK 

 BOTANICAL GARDEN 



THE MACMILLAN COMPANY 



LONDON : MACMILLAN & CO., Ltd. 



1900 



All rights reserved 



