On the extraction of haemin derivatives using burn reactions. 3. Announcement. 1. A new method for the decarboxylation of porphyrine and ferric-porphyratine, description of atiopyroporphyrin and atiomesoporphyrin, description of aetioporphyrine from haemin according to the paraffin-phenol-oxalic acid method 2. A new method to convert haemin into pyroporphyrin 3. The break-down of haemato-porphyrin-Nencki, haematerinic acid, uroporphyrin, dimethoxy-haemin-dimethy-lester and haemato-haemin using resorcin, from haemin using oxyhydro-quinone II. Bacterio chemical presentations of copratoporphyrine