Address of Gerry Melino, chief ed of CDD: Dip. Medicina Sperimentale, Universita Tor Vergata, Via Otton Raimondo 00173 Rome, Italy, Phone (39-6)725 92 112 fax (39-6) 723 47 93 Richard A. Lockshin/Dept. Biol. Sci. St. John's University/8000 Utopia Pkwy Jamaica NY 11439 USA/Phone 718: 990-1854/ Fax 718: 380-8543