582 PHILOSOPHICAL PEKIODICALS. [Can we have a science of human activity, having all the rigour of physical science? and can we found thereupon a rational moral art, away from all notion of free will, obligation and responsibility ?] X. Moissant. ' The Marvellous in Psychology.' [On the mystical union and the graces of higher prayer.] REVUE PHILOSOPHIQUE DE LA FRANCE ET DE L'ETKANGER. 31e annee.. No. 5. Mai, 1906. No. 6. Juin, 1906. G. Compayre. 'LaPedagogie de PAdolescence.' [Analyses and occasionally criticises, from the peda- gogical point of view, Mr. Stanley Hall's recent book on Psychology of Adolescence. Like J. J. Rousseau, with whose views his pedagogy has. often much affinity, Mr. S. Hall draws too hard a line between the ages of infancy and of adolescence. Viewed generally, the book lacks order and logic : the author has gathered and accumulated materials rather than built an edifice. But he is to be praised for having laid, with labour worthy of admiration, the foundations of the future building.] A. Binet. ' Les. premiers mots de la these idealiste.' [A careful examination of the two arguments afforded by Strong in his book, Why the Mind Has a Body, in defence of the idealistic thesis. The first, based on the existence of physio- logical mediation between object and perception, is not at all demonstrative of the non-physical character of perception : this argument, on the con- trary, may be retorted against the idealist. As to his second argument,, the metaphysical one, founded on absolute opposition of nature and lack of communication between mind and matter, it is fundamentally con- stituted by a set of arbitrary metaphors, realistic at bottom.] Th. Ribot. ' Comment les passions finissent.' [There are five essential forms, to which all other are reducible, of the extinction of a passion : i.e. ex- haustion or habit, transformation into another, substitution, madness,. death. These forms are successively described, analysed and illustrated by the author, who sums up his general conclusion thus : " The prob- ability of extinction of a passion is in a direct ratio to the quantity of emotional elements, and in an inverse ratio to the quantity of intellectual elements which it holds in a systematised state."] Revue critique. H. Delacroix. ' La Philosophic pratique de Kant.' [Critical notice on the recent book of M. Delbos, "a first-rate work".] Analyses et Cornptes rendus. Revue des Periodiques etrangers. No. 7. Juillet, 1906. ! Levy-Bruhl. ' La Morale et la Science des Moeurs.' [A very interest- ing reply to some objections directed by MM. Fouillee, Cantecor, Belot and others against his theory as propounded in his book, La Mora'e et la Science des Moeurs. The theoretical objections to his conception of ethics as a science of morals, as well as the prediction of its dangerous- consequences either for the moral consciousness or from the point of view of political and social action, arise alike, according to M. Levy- Bruhl, out of a reluctance to accept thoroughly the idea of a "moral nature " and the necessity of a scientific knowledge of that nature.] J.. Sageret. 'La Commodite scientifique et ses Consequences. [M. Poincare has completed the positivist conception of science by adding to it that the object of a science is also to express the relations and the- systems of relations in a convenient language. M. Sageret seeks what consequences flow for the idea of science from this notion of conveidency. The most important of these is that the mathematical sciences (so-called) are to be wholly separated from the homogeneous group constitujed by the other sciences. Mathematics should be classed among the arts, that is to say, among those arts which are both means of expression and of action. Thus science proper will never assume the character of artificial system nor scientific truth appear to be variable, when the scientist sub-
