indeed they do not constitute, all material forms of being. These spiritual realities arc revealed directly to the spirit of man, while the forms within which they are contained are made known to him through his physical organs of perception." It is through the recognition of these and correlated truths "that the mind becomes able to perceive the harmony that exists between reason and faith." The author has endeavored to reach these truths and to show this harmony by the aid, primarily, of mechanical science and the analogies which it affords.
Fourth Annual report of the United States Geological Survey. 1882-'83. By J. W. Powell, Director. Washington: Government Printing-Office. Pp. 473, with Plates.
The operations of the survey have been extended over the eastern part of the United States, under the authority of a provision in the appropriation act of 1882-'83, requiring it to make a geological map of the United States. The general map is to be made on a scale of 1⁄250000, or four miles to the square inch. Besides the general report of the progress of the work of the survey and the administrative reports of the heads of divisions (embracing geologic, paleontologic, and chemic work), the present volume contains papers on "Hawaiian Volcanoes," by Clarence Edward Button; "The Mining Geology of the Eureka District, Nevada," by J. S. Curtis; "Popular Fallacies regarding the Precious Metal Ore Deposits," by Albert Williams, Jr.; "The Fossil Ostreidæ of North America," by Dr. Charles A. White; and "A Geological Reconnaissance in Southern Oregon," by Israel C. Russell.
Social Wealth. The Sole Factors and Exact Ratios in its Acquirement and Apportionment. By J. K. Ingalls. New York: The Truth-Seeker Company. Pp. 320. Price, $1.
The professed purpose of this book is to direct inquiry to questions intimately related to all human life and employment. The author assumes that "we are living under a system of capitalistic aggrandizement or commercial monarchism," and that "our political savants offer us nothing but what is most delusive and contradictory, while servilely bowing to the demands of a dominant plutocracy." On the other hand, we have the ideas of the European radicals etc., "with suggestions of revolution and of measures of reform ranging from anarchism to the control of social industry by the state." he thinks there must be some natural relation between the worker and the soil, some principle of law which will give an equitable share of the products of industry to each who shares the labor, and a just principle of agreement and consent in regard to such production and division; and endeavors to discover these principles.
Mineral Resources of the United States, Calendar Years 1883 and 1884. By Albert Williams, Jr. Washington: Government Printing-Office. Pp. 1016. Price, 60 cents.
This volume is the second of the series. While it bears the same title, with the exception of the date, as the former volume which covered the calendar year 1882, it is not a reprint, or second edition of that report. The tables of production are re-given; but it has been the endeavor to avoid as far as possible a reproduction of the descriptive matter. While some of the main topics discussed in the former volume, concerning which nothing new has been brought out, are omitted, other subjects, which were not adequately discussed before, are now dealt with at considerable length. A considerable number of the articles appear as special contributions, with the authors' names attached.
The Greek Islands and Turkey after the War. By Henry M. Field, D.D. New York: Charles Scribner's Sons. Pp. 228. Price, $1.50.
The region of which this book gives the author's views of travel is not only one of the finest of the earth in its scenery, but is also predominantly rich in associations of profane and sacred history and literature and art, which are regarded by the majority of reading people with the warmest interest. It is also becoming the scene of stirring movements of progress and political reconstruction, and thereby a center of great contemporary interest. In describing it as a whole and in its different parts. Dr. Field has an eye to all these points of inter-
