BOTANY 



PRrNCIPLES AND PIU)F,LEMS 



BY 



EDMUND W. SINNOTT 



Professor of Botany, Connecticut Agricultural College 



First Edition 



McGRAW-HILL BOOK COMPANY, Inc. 

 NEW YORK: 370 SEVENTH AVENUE 



LONDON: 6 & 8 BOUVERIE ST., E. C. 4 



1923 



