66 D. G. Crosby and A. J. Vlitos 



principally of the long-chain alcohol I-docosanol, while the other was 

 the sodium salt of a long-chain unsaturated fatty acid. These find- 

 ings emphasize the necessity for actual isolation and chemical study 

 of natural growth substances and the importance of long-chain com- 

 pounds to plant life. 



ACKNOWLEDGMENT 



The authors wish to express their gratitude to the many people 

 in the Research Department of the Union Carbide Chemicals Com- 

 pany and the Boyce Thompson Institute for Plant Research Avho 

 contributed to this effort. In particular, the skillful services of Messrs. 

 R. V. Berthold, H. G. Cutler, I. D. J. Phillips, and Werner Meudt 

 are gratefully acknowledged. 



LITERATURE CITED 



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