Étienne Cabet (1788–1856) is represented in the Index by one only of his long series of treatises, _Le Vrai Christianisme_, printed in 1846, prohibited in 1848. Esquiros, H. A. (†1876), has, next to Proudhon, the longest list in the Index of works belonging to this class. Of these the most important is _L’Évangile du Peuple_, printed in 1840, prohibited in 1841. This is followed by three socialist tracts entitled _Les Vierges Martyres_, _Les Vierges Folles_, _Les Vierges Sages_, printed in 1841, prohibited in 1842. Further titles in this group are: Constant, L. A., _La Bible de la Liberté_, printed in 1841, prohibited in the same year. The author was condemned to imprisonment for his works. Chevé, Ch. Fr., _Le Dernier Mot du Socialisme, par un Catholique_, printed in 1848, prohibited in 1852. =41. Magnetism and Spiritualism, 1840–1874.=--From the year 1840, the Inquisition published a series of decrees or opinions in regard to the theory of animal magnetism, but did not undertake to lay down any final conclusions. Certain expressions of opinion were also given in regard to the theories grouped under the name of spiritualism, but for this subject also there is wanting from the censorship authorities any authoritative or final word of counsel. From the long list of writings by the spiritualists of the time, only about a dozen were formally condemned. The list includes: Kardec, Allan, _Revue Spirite, Journal d’Études Psychologiques_, 1858–1864; _Le Spiritisme à sa plus simple Expression_, printed in 1862, prohibited in 1864; _Le Livre des Esprits_, printed in 1863, prohibited in 1864. Guldenstubbe, L. V., _Positive Pneumatologie_, printed in 1870, prohibited in 1874. Under magnetism may be noted: Cahagnet, L. A., _Guide du Magnétiseur; Le Magnétisme Spiritualiste_. With this group may also be classed the Memoir of Swedenborg by the Protestant theologian, J. Matter of Strasbourg, _Swedenborg, Sa Vie, ses Écrits et sa Doctrine_, printed in 1863, prohibited in 1864. =42. French Authors, 1835–1884.=--Among the more important of the books by French authors which are represented in the Index during this half-century may be noted the following: Ségur, Mgr. L. G. de (1881), _La Piété et la Vie Intérieure_, printed in 1864, prohibited in 1869. The name of the author is not recorded in the Index and it is stated that the omission was due to personal consideration for him. Ségur states, in an article printed in 1860, that the monograph, before being brought into print, had been passed upon with approval by a number of devout scholars. He said further, that seventeen thousand copies had been distributed and that during the five years since the publication no criticism concerning it had come to him. He yields himself now to the authority of the Holy See and recalls the work from circulation. Cloquet, Abbé. This author comes into the Index in 1864, on the ground of a series of monographs having to do with the subject of indulgences.