THE BIOTECH REVOLUTION! It's the new frontier of scientific development: genetic engineering, the crafting of species, and the self-alteration of man himself. Here are nine stories at the cutting edge of the biotechnology revolution-"The Cure for Love," "Ashes and Tombstones," "Slumming in Voodooland," "The Color of Envy," "The Lady-Killer, as Observed from a Safe Distance," "Busy Dying," "The Man Who Invented Good Taste," "The Road to Hell,"...