E. C. Amoroso 



The subject we are to discuss comprehends a great variety 

 of problems, ranging from the physical instability and ageing 

 of red blood cells to the metabolism of senescent leaves. This 

 meeting, it is hoped, should help in combining these diverse 

 points of view. And so it gives me great pleasure to call on 

 Dr. Dorothy Price to present the first paper. 



