Gross, Hans. Kriminal-Psychologie. Leipzig, Vogel, 1905. xii + 701. Zweite Auflage.

Although intended primarily for those who have professional interest in juristic problems and in the scientific side of criminology, this book of GROSS' contains much that is of value to the comparative psychologist. In reading it one is likely to be impressed with the obvious need of psychological knowledge in the treatment of criminals and defectives. But, at the same time there is opened up, in thoroughly scientific systematic fashion, a vast realm of abnormal psychology which has been almost entirely neglected by scientific investigators, namely, the psychology of crime. The work is authoritative, and in this second edition it has been considerably improved in form and increased in value.

R. M. Y.

Streeter, George L. The Development of the Cranial and Spinal Nerves in the Occipital Region of the Human Embryo. Am. Jour. Anat., 4, 83-116. 1904.

A study of numerous human embryos from the collections of HERTWIG, MALL, HIS and GOLGI. The period, 20-81 days, involves all the changes in form and relation from the time when the peripheral nerves are first capable of reconstruction to the time when the adult condition is practically established. The ganglionic crest in the cerebral region is from the first distinct from the trunk ganglia, though it is connected with the latter by a thin sheet of loosely arranged cells. The ganglia petrosum and nodosum are apparently adherent to thickened patches of the epidermis. The ganglionic crest of the tenth and eleventh nerves at first shows no signs of segmental arrangement. The latter nerves are found to belong to the same complex and alike have root ganglia and motor and sensory roots. In the course of development the sensory element comes to predominate in the cephalic portion of the complex and the motor in the caudal portion. The hypoglossal is like the ventral cervical roots in position and segmental arrangement. The ventral spinal nerves are developed earlier than the dorsal roots.

G. E C.

Carlson, A. J. Contributions to the Physiology of the Ventral Nerve Cord of Myriopoda (Centipedes and Millipedes). Jour. Ex. Zool. 1. 269-288.

1904.

In the ventral nerve cord of Scolopendra the conduction rate is greater in the antero-posterior direction. This antero-posterior differentiation, is most marked in the short types. Experimental studies on the localization of centres of control of important reflex functions.

G. E. C.

Mettler, L. Harrison.

A Treatise on Diseases of the Nervous System, 989

pages, Cleveland Press, Chicago, 1905.

"The Neurone Doctrine is now an accepted fact."

After an introduction of 88 pages devoted to classification, etiology, symptomatology, etc, the writer describes first the neuronic diseases, beginning with the neuroses, hysteria, vertigo, neurasthenia, epilepsy, and all the other neuroses, the sympathetic included, and the system diseases--locomotor ataxia, the systemic motor palsies (including myasthenia), and the mixed afferent and efferent types.

The non-neuronic diseases (p 457-957) include the changes starting from the glia, vessels and sheaths, practically all the diseases of the peripheral nerves and diffuse and focal diseases of the nervous system. Alcoholism and some other toxic and infectious disorders with prominent participation of the nervous system come last (p. 959-971).

Notwithstanding this somewhat peculiar arrangement, METTLER gives a very readable presentation of the chief facts, general and clinical, in most respects superior to several of the books which are in the hands of many students In view of the excellency of the matter it is rather a pity that an essentially doctrinal issue should be at the top of every page-the distinction of neuronic and non-neuronic diseases, in the somewhat arbitrary sense in which METTLER makes his subdivision.

The illustrations are well chosen and very instructive. The book deserves recommendation. Lapses are relatively rare, as on p. 486, under BURDACH'S column: "astereognosis, loss of reflexes and every physiological act that involves sensation, directly or reflexly, are diminished or abolished," when it is diseased.

A. M.

Child, C. M. Studies on Regulation. The Relation of the Central Nervous System and Regeneration in Leptoplana: Posterior Regeneration. Jour. Ex. Zoology, 1, 493-512. 1904.

The presence of about half of the cerebral ganglion has both quantitative and qualitative influence on the reaction of pieces, and the efficiency of the brain in this respect is not localized. This efficiency is affected by the amount of nervous tissue present in the piece and not by the presence of a particular part of the nervous system. The influence of the nervous system upon posterior regeneration is quantitative only, and is not " formative" but indirect through the influence of functional conditions. In regeneration, also, the influence of the nervous system depends upon the amount present and not upon the presence of a particular part: a condition which argues against the idea of functional centers.

G. E. C.

The British Journal of Psychology

Edited by JAMES WARD and W. H. R. RIVERS.

With the Collaboration of A. KIRSCHMANN, W. MCDOUGALL, C. S. MYERS, A. F. SHAND, C. S. SHERRINGTON, W. G. SMITH.

NOW READY. Vol. I. Part 3. January, 1905. Price 5s. net.

CONTENTS.

SMITH, NORMAN.

Malebranche's Theory of the Percep
tion of Distance and Magnitude. (One Figure).

HALES, F. N. Materials for the Psycho-genetic Theory of
Comparison.

SMITH, W. G. A Comparison of some Mental and Physical
Tests in their application to Epileptic and to
Normal Subjects. (One Figure).

CALKINS, MARY WHITON. The limits of Genetic and of
Comparative Psychology.

SPEARMAN, C. Analysis of Localisation,' illustrated by a
Brown-Séquard case. (Eleven Diagrams).

The Journal will be issued in parts at irregular intervals. Four parts will (usually) constitute a volume of about 450 pages Royal 8vo. The price to subscribers, payable in advance, will be 15s. net per volume (post free). The price of single numbers will depend on the size of each number.

Subscribers may send their names to any Bookseller or to the Cambridge University Press Warehouse, Ave Maria Lane, London, E. C.

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London: Cambridge University Press Warehouse, Ave Maria Lane.

C. F. CLAY, Manager.

CONTENTS.

The Sense of Hearing in Frogs. By ROBERT M. YERKES. (From the Harvard Psychological Laboratory.) With seven figures in the text.

The Reactions of Ranatra to Light. By S. J. HOLMES. (From the Zoological Laboratory of the University of Michigan.) With six figures in the text.

Literary Notices.

279

305

350

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