216 



Brian Colman and Wolf Vishniac 



1000 -, 



JOO- 



locr 



50 - 



-T" I 



Klnutas 



Figure 1. Loss of radioactivity from dry chlorophyll samples. 



Cxarve 1: Chlorophyll a treated with H-^OH in ether plus 



2io pyridine. 



Curve 2: Chlorophyll a isolated from chloroplasts 



illuminated in presence of H OH. 



Ordinate in c.p.m. per sample counted. 



