A TEXT-BOOK OF 
GRASSES 
WITH ESPECIAL REFERENCE TO 
THE ECONOMIC SPECIES OF THE 
UNITED STATES 
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SYSTEMATIC AGROSTOLOGIST, UNITED STATES DEPARTMENT OF AGRICULTURE, 
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WASHINGTON, D. C.; FORMERLY PROFESSOR 9P cep IN’, mE? oie 
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THE MACMILLAN COMPANY 
1914 
All rights reserved 
