Hi All, Does anyone know where we might find partial specific volume tables for porphyrins? Rob Fairman -- Robert Fairman Associate Professor Department of Biology 370 Lancaster Ave Haverford College Haverford, PA 19041 phone: (610) 896-4205 fax: (610) 896-4963 email: rfairman at haverford.edu web: http://www.haverford.edu/biology/Fairman/fairman.html