12 JANUARY 1884, Page 23

The Diothas ; or, a Far Look Ahead. By Ismer

Thuisen. (G. P. Putnam's Sons, New York.)—These previsions of the future are getting to be a little tiresome ; and this, though clever and certainly well written, cannot be acquitted of being somewhat liable to the charge. The conception, too, seems to us faulty.- Such a book should be either an obvious extravagance, or made so plausible that it seems as if it might very well happen. Most of this book comes under the second description ; but then what is meant by "a library of a hundred million volumes "P And we cannot say that the idea of a man marrying a descendant of his own, even in a future state of existence, strikes us as in very good taste. Still, there is merit in the book, and possible suggestions for the improvement of the world in which we actually dwell.