Of all the criticism and discussion called forth both in this country and in England by that remarkable little book, "The Unseen Universe," Mr. John Fiske's "Unseen World" is at once the most profound, the most comprehensive, and the most lucid.... The mere statement of a thought in his perspicuous and translucent language gives it, in most cases, a new meaning and an added force.--_Appletons' Journal._ They are all striking compositions, and deserving of a place in the fore rank of this kind of literature. It is not often that more robust and healthy reading can be found between the covers of a single volume.--_San Francisco Bulletin._ The vigor, the earnestness, the honesty, and the freedom from cant and subtlety in his writing are exceedingly refreshing. He is a scholar, a critic, and a thinker of the first order.--_Christian Register._ Mr. Fiske has won for himself a foremost place among American writers on physical science; and the present volume of essays bears testimony not only to his ability as a physicist, but to his versatility of mind and critical powers as well.--_Canadian Monthly._ He is one of our foremost religious thinkers.--_Times_ (New York). The line of argument is so plain that all can follow it, and the style is wondrously charming.--_Index_ (Boston). Mr. John Fiske is a devoted student of Dante. The review of Mr. Longfellow's work is an admirable essay upon translating Dante,--an essay showing a very fine critical feeling and thorough knowledge of the subject.--_Transcript_ (Boston). He is a scholar profoundly versed in ancient and modern lore, a thinker familiar with all shades of thought, an observer who studies men as well as books, and withal a writer of the purest and most graphic English.--_Inter-Ocean_ (Chicago). He finely exposes the materialistic character of the book called the "Unseen Universe," which has been so highly extolled by the "Southern Cross" and other papers.--_Advertiser_ (Maryborough, Australia). The book has a unity and charm in the clearness of the thought and the beauty of such a style as was perhaps never before brought to the illustration of the topics with which Mr. Fiske habitually deals. There is something better still in the admirable spirit of his writing; it is of all writing of its sort, probably, the most humane.... He has already achieved a place as wholly his own as it is eminent.--_Atlantic Monthly._ * * * * * =EXCURSIONS OF AN EVOLUTIONIST.= 12mo, pp. 379, $2.00. CONTENTS: Europe before the Arrival of Man; The Arrival of Man in Europe; Our Aryan Forefathers; What we learn from Old Aryan Words; Was there a Primeval Mother-Tongue? Sociology and Hero-Worship; Heroes of Industry; The Causes of Persecution; The Origins of Protestantism; The True Lesson of Protestantism; Evolution and Religion; The Meaning of Infancy; A Universe of Mind-Stuff; In Memoriam: Charles Darwin.