1 8. INTROD UCTION to MATHEMATICS 



By A. N. WHITEHEAD, Sc.D., F.R.S. (With Diagrams.) "Mr 

 Whitehead has discharged with conspicuous success the task he 

 is so exceptionally qualified to undertake. For he is one of our 

 great authorities upon the foundations of the science, and has 

 the breadth of view which is so requisite in presenting to the 

 reader its aims. His exposition is clear and striking." West- 

 minster Gazette. 



19. THE ANIMAL WORLD 



By Professor F. W. GAMBLE, D.Sc., F.R.S. (Many Illustrations.) 

 " For the thoughtful and philosophically minded student at the 

 present day," says Sir Oliver Lodge, in his Introduction to this 

 volume, ' ' such a book is most timely and helpful. ... I am glad 

 to have the opportunity of commending the series to that increasing 

 number of readers who are hungry for trustworthy and assimilable 

 information. " 



20. EFOLUTION 



By Professor J. ARTHUR THOMSON, M.A., and Professor PATRICK 

 GEDDE$. This volume, which, as the Manchester Guardian, 

 says, "is in its survey the most comprehensive of those devoted 

 to Science, and is in a sense the key to them all," summarises the 

 facts of Variation and Heredity, Selection, Function, and Environ- 

 ment, and the chief Evolution theories, and concludes with an 

 important "re-interpretation" of the development process. 



22. CRIME AND INSANITT 



By Dr C. A. MERCIER, F.R.C.P., F.R.C.S., Author of "Text- 

 Book of Insanity," etc. " Furnishes much valuable information 

 from one occupying the highest position among medico-legal 

 psychologists." Asylum News. 



28. PSYCHICAL RESEARCH 



By W. F. BARRETT, F.R.S., Professor of Physics, Royal College 

 of Science, Dublin, 1873-1910. "As a former President of the 

 Psychical Research Society, he is familiar with all the developments 

 of this most fascinating branch of science, and thus what he has to 

 say on thought-reading, hypnotism, telepathy, crystal-vision, spirit- 

 ualism, divinings, and so on, will be read with avidity." Dundee 

 Courier. 



31. A STRONG MT 



By A. R. HINKS, M.A., Chief Assistant, Cambridge Observatory. 

 " Original in thought, eclectic in substance, and critical in treat- 

 ment. . . . No better little book is available. "School World* 



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