Bulletin de l'Ac. des Sc. de Cracovie, 1902. 



l'l. 1. 



rhYllo]iorphyrin dissolved in dil HCl 

 „ - H,SO, 

 - . HNO, 



A'arious concentrations of phylloporphy- 

 rin in dil. HCl. 



Phylloporphyrin dissolved in dil. HCl 



. . H.,SO, 

 , , HNO, 

 Na 

 source of light. 



Phylloporphyrin dissolved in ether 



source of light. 



L. Marchlewshi. 



