_Revised Edition._ "The author attempts to examine and test the principles of the theory of evolution as applied to the known phenomena of the cosmos.

To do this at all satisfactorily in little more than 300 pages, and at the same time bring under review all that is most valuable in recent scientific research, is no easy task.

We may say at once that, in our opinion Dr.
Herbert has succeeded wonderfully well."-- _Athenaeum._ "Contains not a single dry page--far and away the most compact and complete account of evolution in all its aspects."-- _Globe._ "We congratulate Dr.Herbert on his masterly arrangement....

It will serve as an admirable introduction to a difficult subject."-- _Dundee Advertiser._ * * * * * AN INTRODUCTION TO THE PHYSIOLOGY AND PSYCHOLOGY OF SEX 49 Illustrations.

Large Crown 8vo.Cloth.