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/ 



GROWTH - r( 



of 



PLANTS 



T'wenty Years' Researcli at 

 Boyce Tkompson Institute 



by 



WILLIAM CROCKER 



Managing Director, Boyce Thompson Institute 

 for Plant Research, Inc., Yonkers, N. Y. 



REINHOLD PUBLISHING CORPORATION 

 330 West 42nd St., New York 18, U. S. A. 



1948 



