XI. THE SCIENCE OF FAIRY TALES. By E. Sidney Hartland. 3s. 6d.
"Mr. Hartland's book will win the sympathy of all earnest students, both by the knowledge it displays, and by a thorough love and appreciation of his subject, which is evident throughout."—Spectator.
XII. PRIMITIVE FOLK. By Elie Reclus. 3s. 6d.
"An attractive and useful introduction to the study of some aspects of ethnography."—Nature.
XIII. THE EVOLUTION OF MARRIAGE. By Professor Letourneau. Second Edition. 3s. 6d.
"Among the distinguished French students of sociology, Professor Letourneau has long stood in the first rank. He approaches the great study of man free from bias and shy of generalisations. To collect, scrutinise, and appraise facts is his chief business. In the volume before us he shows these qualities in an admirable degree."—Science.
XIV. BACTERIA AND THEIR PRODUCTS. By Dr. G. Sims Woodhead. Illustrated. Third Edition. 3s. 6d.
"An excellent summary of the present state of knowledge of the subject."—Lancet.
XV. EDUCATION AND HEREDITY. By J. M. Guyau. 3s. 6d.
"It is at once a treatise on sociology, ethics, and pedagogics. 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.