edited by Susan Davidson and David White edited by Susan Davidson and Philip Rylands edited by Simon Davidson and Steven Carber. edit by David M. Davidson and David Blot edited by Yan-Nan Song and David Ritchie edited by Tao Tao Liu and David Faure. edited by David Thompson and Ian Christie edited by Peter Drysdale and David Vines. edited by Conor Curran and David Toms edited by David Leavitt and Aaron Thier