Lord Campion, D. N. Chester, W.J. M. Mackenzie, William Robson, Sir Arthur Street, J. H. Warren
Review of the Original Publication: “On the subjects the book treats no better qualified set of authors could have been assembled, and no better balanced set… a symposium that is stimulating and informative because the authors range where they will and concentrate mainly on interpretation and on bringing the less familiar rather than the commonplace to notice. What they jointly produce in consequence is as lively and full and account as has yet appeared of some of the leading problems of our time.” - Manchester Guardian