I9I4] 



Clarence J. West 



251 



higher, to 250° for example, brown amorphous products result be- 

 sides hemopyrrole and carboxyl-free derivatives can not be obtained. 

 Heating with quinoline or acridine was without effect. The last 



Data pertaining to phyllines and porphyrines 

 A. Phyllines 



B. Porphyrines 



