The Transitionary Stage from Anaerobiosis to Aerobiosis 605 



principle, and thus whatever their outcome, to advance our understanding of 

 this exceedingly important aspect of hfe process. 



Acknowledgment. — The author is indebted to his colleagues, Drs K. Obata, 

 M. Yoneda, T. Masuda and M. Higuchi, for stimulating discussions which were 

 very helpful in the development of this report. 



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