John Stephen Glasby (23 September 1928 – 5 June 2011) was a prolific British author whose work spanned a range of popular genres. A professional research chemist and mathematician, he produced over 300 novels and short stories during the 1950s and 1960s, most of which were published pseudonymously under the Badger Books imprint. Pseudonyms (listed alphabetically): Chuck Adams John Adams R.L. Bowers Tex Bradley Berl Cameron Craig Campbell Max Chartair Randall Conway Ray Cosmic John Crawford J.B. Dexter John Glasby J.S. Glasby Michael Hamilton J.J. Hansby D.K. Jennings Marston Johns Victor La Salle Victor LaSalle Peter Laynham H.K. Lennard Rand Le Page Paul Lorraine John C. Maxwell A.J. Merak H.J. Merak John Morton John E. Muller J.L. Powers Manning K. Robertson Karl Zeigfreid