PHILOSOPHICAL PERIODICALS. 4'27 Blum. !.< loiiviiH-nt Pt'dologiqiie et Prdugogique (l.).' Analyses et eomptes rendus. Revue des Pt'riodiques (Strangers. SOCIETY KOH PSYCHICAL KKSKAK.II, PROCEEDINGS. No. :).'>. .In Iv 1899, pp. 28(>. Charles Richet. On the Conditions of Certainty.' [An- nounces that upon recent careful re-examination he is onee more con- vinced of the genuineness of Eusapia Paladino's 'physical phenomena'. Mr. F. W. H. Myers adds a note to the same effect.] Alice Johnson. ' Coincidences.' [A careful and valuable discussion of the whole subject covering 1 70 pp. full of interesting matter.] Mary H. Kingnlcy. The forms of apparitions in West Africa.' [A most entertaining anthro- pological study of native superstitions.] Dr. J. Shepley Part. ' A few notes on occultism in West Africa.' [Evidence as to cases of occult transmission of intelligence by natives which came within the author's knowledge.] F. C. 8. Schiller. ' Psychology and Psychical Research.' [A polemical reply to Prof. Mitnsterberg's attack on the Society for Psychical Research in his article on 'Psychology and Mysticism (Atlantic Monthly, January 1899). Treats him with entire disrespect and accuses him of 'grossly misrepresenting both the aims and methods of the Society for Psychical Research.'] F. W. H. Myers. ' Dr. Morton Prince's Experimental Study of Visions.' [A case of tri- partite personality.] A. R. Wallace and J. O. Smith. ' Extract from J.-E. de Mirvilli's account of the experiences of Robert Houdin the conjurer with Alexis Didier the clairvoyant.' Reviews, Lists of Members. No. 36. February, 1900, pp. 107. Andrew Lang. ' The Fire Walk.' [Amongst other remarkable accounts contains the experiences of a British Resident in Rarotonga who received the ' taiM ' of a local priest and walked barefoot across twelve feet of white-hot stones un- scathed, and feeling only " something resembling slight electric shocks ". Mr. I.ang proffers no theory of this extraordinary but apparently widely and well-attested phenomenon.] Mrs. Henry Sidgwick. ' Discussion of the Trance Phenomena of Mrs. Piper.' [Points out that the spiritistic interpretation of these is not free from difficulty ; suggests that telepathic rather than direct action of the departed may be involved, affecting either the sitter's or Mrs. Piper's subliminal mind and worked up by Mi's. Piper's trance personality.] Andrew Lang. Reflections on Mrs. Piper and Telepathy.' [Admits a " bias not to believe that the dead are in any way mixed with sittings at so many dollars," rejects the s theory of possession " and suggests that " telepathy <i trois" may perhaps be made to suffice.] F. C. S. Schiller. 'On some Philosophic Assump- tions in the Investigation of the Problem of a Future Life.' [A theoretical paper. Postulates ' fundamental identity between our own and any other ' world ; hence psychical continuity, and in spite of this a dissociation which is psychologically explicable. An "idealistic experientialism " throws light on the inconclusiveness of the phenomenon of ' death ' and rejects attempts to settle the question a priori. Harlow Gale. I. ' A Study in Spiritistic Hallucinations ' in which the subject's honesty was above suspicion, and II. ' A Case of Alleged Loss of Personal Identity ' in which it was not.] Notes and Reviews. REVUE No-ScoLAHTio.UE. No. 28. According to D. Nys (' Etude sur 1'Espace '), the internal space occupied by a body is, from the ontological point of view, identical with concrete extension, and thus its essential functions are to extend the material mass, to limit its volume, and to attach it in an exclusive manner to a definite place. On internal place, as on their foundation, are based all those relations of distance which, in their aggregate, constitute real space. P. de Munnynck (' L'Hypotht'-se
