[by] T.J. Lewis [and] P.E. Secker. by I.A.D. Lewis and F.H. Wells. by J.R. Lucas and P.E. Hodgson. by K. R. Lewis and B. John. by J. H. Cairns and P. T. Gilbert. Jeffery Lewins and Martin Becker. by K. J. Binns and P. J. Lawrenson. R.J. Shipley and W.T. Becker. by T.W. Goodwin, E.I. Mercer. ed by R. W. Lewis and K. Morgan.