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 on the side of this question represented by Dr. Harvey in the present volume, prominent among whom have been Alison Gubler and Sir John Forbes—the latter author, indeed, having carried his views so far as to be ranked as a therapeutic nihilist. But it is difficult to take up a position strongly without being charged with exaggeration and exclusiveness. Dr. Harvey, at any rate, is not open to the charge of extreme partisanship, and has done an excellent service to his profession by this digest of information from wide sources, and the analysis which he has made of the nature of the curative powers of the organism, and the quality of disease; and while he strongly asserts the supremacy of nature over art, he yet gives to art that which is fairly its due. The final chapters of the work, on the "Physiology of the Several Processes of Dying," are of especial interest.

The author publishes an extract from a letter written him by Sir Thomas Watson, author of the well-known "Principles and Practice of Physic," a portion of which we here append. Dr. Watson says: "You have thoroughly thrashed out the great theme which you proposed to discuss. It is certain that a sound system of therapeutics must rest on a consideration of what nature in many cases is capable, and in some fewer cases is incapable of doing in disease; and, on the other hand, on what art may do in helping or hindering nature. All this, I say, you have most fully explained; and I feel sure that the student of your volume can not fail to have his mind cleared up and settled on these most important subjects."

reception of Spencer's "Data of Ethics" by critics generally has been most gratifying, and indicates a favorable change in the habits of these parties. Formerly they seem to have been chiefly anxious to put before the world their own views of Spencer's works; now they conclude it is better to let him speak for himself. This may somewhat belittle the function of the critical go-between, but it will be much more satisfactory to both the author and the public, besides the incidental advantage of getting more truth into circulation. A large number of the reviews of the "Ethics" have consisted of able and discriminating summaries of Spencer's doctrines; and even Professor Bain, whose position certainly entitles him to assume the function of judge, is chiefly concerned to get Spencer's opinions fully and fairly before his readers. We reprint his article because of its authority in this branch of thought.

has resumed labor upon the "Principles of Sociology," and will shortly publish that part of Vol. II. which treats of the "Development of Ceremonial Institutions." This is a most interesting subject, and becomes very attractive in Spencer's hands. This will be followed by the "Development of Political Institutions," one of the most important parts of his philosophical undertaking.

point which the author aims to establish in this essay, if we rightly understand him, is that physical energy is sufficient for the production of all the phenomena of life without the intervention of a so-called "vital" force; and that the nervous system is capable of holding in its substance all forms of physical energy which by means of "cells and ganglia may be interchanged into different higher and lower forms or held as originally absorbed."

Lectures and Essays. By the late W. K. Clifford, F. R. S. L. London and New York: Macmillan. 1879. 2 vols., pp. 340 and 321. $7.50.

Units and Physical Constants. By J. D. Everett, F. R. S. L. Same publishers. 1879. Pp. 191. $1.10.

Seeing and Thinking. By the late W. K. Clifford. Same publishers. 1879. Pp. 156. $1.

First Book of Qualitative Chemistry. By A. B. Prescott. New York: D. Van Nostrand. 1879. Pp. 160. $1.50.

Ice-making Machines. By M. Ledoux. Same publisher. 1879. Pp. 150. 50 cents.

The Origin of Fever. By R. T. Colburn. Rochester, New York: Andrews print. 1879. Pp. 26.

Memoirs of the Science Department of the Tokio University. Vol. I., Part I. Shell Mounds of Omori. By E. S. Morse. Tokio: The University 2589 (1879). Pp. 86, with 18 Plates.

Der Irrthum des Speciesbegriffes. Von Dr. Otto Kuntze (Verhandl. d. Leipz. geogr. Ges. 1879). Pp. 18. Verwandtschaft von algen mit Phanerogamen. Von dem selben (Ans "Flora." 1879). Pp. 22.

The Creeds or Christ: a Plea for Religious