PROTEIN STRUCTURE 



protein structure today, imperfect as it is, gives increased hope 

 of more definite solutions to the great problems that concern 

 the biologist — the biogenesis of proteins and the mechanisms 

 of their biological functions. We may reasonably believe that 

 the work of the next ten years will go far to deepen our under- 

 standing of these fundamental problems. 



We are indebted to Mr. J. Ralph Einstein for his detailed and careful 

 work in the drawing of Figure 8, and to Professors Linus Pauling and R. B. 

 Corey for providing us with an unpublished drawing (Fig. 4). 



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429 



