Fig. 3. Zone electrophoresis laboratory at the Institute of 

 Biochemistry, Uppsala. 



Fig. 4. Chromatographic separation of R-phycoerythrin and R-phycocyanin in an 

 extract of Ceramium rubrum. Calcium phosphate (Brushite) column, saturated with 

 0-005M phosphate buflfer, pH = 6-8. Elution of phycoerythrin (same buffer, 0-02m, ex- 

 posures 1-2) and of phycocyanin (same buflfer, 004m, exposures 3-5). (From A. Tiselius, 

 S. Hjertén and Ü. Levin, lb. (1956).) 



