ACKNOWLEDGMENT 



Throughout the course of these researches 

 I have received many important suggestions 

 from Professor W. J. Gies, Dr. E. G. Miller, 

 Jr., and the several members of the Depart- 

 ment of Biological Chemistry. 



It is, therefore, a pleasure to express my 

 extreme indebtedness for the valuable criticism 

 and helpful guidance which were so willingly 

 given me. 



