NKV HOOKS. ||.") Sollier comes to the conclusion that there are : 1 centre^ i>f reception which are also centre.-- ot representation, iiml - centre* ot p.-ivepti.m the frontal lobes which are also centre* of conservation and evn, The phenomenon of euiention includes the. study of all the condition. and influence* that prepare the way for reproduction.' The discussm; ir. but it would gain by condensation. Occasionally we meet with ery novel statements, and the grounds for them are not alway, gien (./;.. tlie a-sertion of 'parallel' alteration of 'cerebral activity' and electrical resistance of the brain is quite valueless apart from an accurate account of experimental conditions and a hill record of figures, e 1'is . On p. 176 ft'. observations are repeated from the author's preioi - work on Hysteria. Some of them are very remarkable and require con- firmation, as does his whole doctrine of ' cerebral coenwsthesia '. T.L. /.<.< Tronlili'x Mi'ntfit'.i- dr I'Enfancr : I'rri-in (it- 1'xin-liiiilrii' Infantile III'K- l,'n Ai>jtlii-(itioiiK Pidagogiqitet < > Mi'<ii<-i>-i--</n/i-x. Par le Dr. MARCKL MANHKIMER, Ancien Interne des Asiles tie la Seine, el. Preface de M. le Professeur Joftroy. Paris : Societe d'Editions Scientifiques, 1899. Pp. 188. This little treatise is what it professes to be a prfcis of what i* lies', in the recent studies of infantile mental troubles. Full references are given. The book thus provides the elementary student with all he requires, and prepares for him a line of future study. Dr. Manheimer. starting from the "evolution of the infant in the normal state," sum- marises, in the first part, the causes of insanity. In the second part, Semeiology, he gives a chapter to each leading division troubles of the feelings, intelligence, including attention, memory, etc., aetiutv. impulses, will. In the third part, he classifies mental diseases. The classification, which follows Magnon and Krafft-Ebing, aims 1, theoretical freedom from cross-divisions than at didactic sufficiency. The main groups are first, pure psychoses, including mania, melancholia and recurrent insanity ; second, states of degeneration, the deliriums, with troubles of intelligence, feelings, etc. ; third, the neuroses, some being really degenerations, but special enough to demand a class apart ; fourth, toxic insanities ; fifth, as supplementary, the dementias, of regression ; sixth, states of arrest idiocy, imbecility. Only the features special to children are elaborated. The fourth part is Medico- legal. It deals with responsibility in infants, varieties of criminal infants, infant evidence and suicide. The fifth part deals with treatment and public assistance. There is a statistical appendix. The little book shows a vast amount of sifted reading ; it is relevant and adequate in its sum- mary of opinions, and, accordingly, it is a good handbook to the practical study of insanity in children. There is not much room in the book for discussion of psychological refinements, but the paragraphs on " traite ment psychologique " show a careful study of suggestion. Great stress is laid on the " illuninii. of sleep " in non-hysterics. The illusion is found to be sufficient, " car elle peut etre rendue tres forte " (p. 160). And so the Charcot view of the true hypnotic sleep as possible only in hysterics . ed. W. LESLIE M .u KKN/.IK. Li- J'l-olil- 'in' (d'n Sm>n. Pur JACQUES LOURBET. Paris: Giard et Briere, 1900. Pp. 301. This work is the twenty-fourth volume of the International I.ibi-. Sociology, and it speaks well for the interest which is taken in Sociological
