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HOW PLANTS GROW, 
A SIMPLE INTRODUCTION TO STRUCTURAL BOTANY. 
WITH 
A POPULAR FLORA, 
OR AN ARRANGEMENT AND DESCRIPTION OF COMMON PLANTS, 
BOTH WILD AND CULTIVATED. 
ILLUSTRATED BY 500 WOOD ENGRAVINGS. 
By ASA GRAY, M.P.. 
V t l' 
FISHER PROFESSOR OF NATURAL HISTORY IN HARVARD UNIVERSITY. 
NEW YORK • : • CINCINNATI • : • CHICAGO 
AMERICAN BOOK COMPANY 
