D.Barton Johnson is Emeritus Professor of Russian, University of California at Santa Barbara. His publications include Worlds in Regression.: Some Novels of Vladimir Nabokov (1985) and many articles on Nabokov. Liana Ashenden, University of Cambridge, UK, wrote her MA dissertation on "Mimicry, Mimesis and Desire in Nabokov’s Ada" with Brian Boyd as supervisor. She has published "Ada’s Erotic Entomology" in "Nabokov Studies".