Set of four volumes, all with green hard covers and silver-on-black titles on the spine. The front cover of vol IV has some surface marking but otherwise the covers have just light wear at the tops and bases of the spines which are slightly discoloured. Light foxing on the top and fore edges. Binding is tight. Very light foxing on the endpapers. Text is clean and unmarked. The four volumes are: Hypnotism in France 1800-1900 by Eric J Dingwall; Hypnotism in Belgium, The Netherlands, Germany and Scandinavia 1800-1900 by George Zorab (Belgium and the Netherlands), Liselotte Moser (Germany), Erik Bjelfvenstam (Scandinavia); Hypnotism in Russia and Poland, Italy, Spain, Portugal and Latin America 1800-1900 by Ludmila Zielinski (Russia and Poland), Luciano Leppo (Italy), Eric J Dingwall (Spain, Portugal and Latin America); Hypnotism in The United States of America and Great Britain 1800-1900 by Allan Angoff (The United States of America), Eric J Dingwall (Great Britain). All books edited by Eric J Dingwall. A very rare set.