"It is at once a treatise on sociology, ethics, and rædagogics. It is doubtful whether among all the ardent evolutionists who have had their say on the moral and the educational question any one has carried forward the new doctrine so boldly to its extreme logical consequence."—Professor SULLY in Mind.
XVI. THE MAN OF GENIUS. By Professor LOMBROSO. Illustrated.
"By far the most comprehensive and fascinating collection of facts and generalisations concerning genius which has yet been brought together."—Journal of Mental Science.
XVII. THE GRAMMAR OF SCIENCE. By KARL PEARSON, M.A., Gresham Professor of Geometry. Illustrated.
"The problems discussed with great ability and lucidity, and often in a most suggestive manner, by Prof. Pearson, are such as should interest all students of natural science."—Natural Science.
XVIII. PROPERTY: ITS ORIGIN AND DEVELOPMENT. By Professor LETOURNEAU.
"M. Letourneau has read a great deal, and he seems to us to have selected and interpreted his facts with considerable judgment and learning."—Westminster Review.
XIX. VOLCANOES: PAST AND PRESENT. By EDWARD HULL, M.A., LL.D., F.R.S. With 45 Illustrations.
"A very readable account of the phenomena of volcanoes and earthquakes."—Nature.
XX. PUBLIC HEALTH. By Dr. J. F. J. SYKES. With numerous Illustrations.