By Professor J. ARTHUR THOMSON and Professor PATRICK GEDDES. "A many-coloured and romantic panorama, opening up, like no other book we know, a rational vision of world-development."--_Belfast News-Letter._ 22. _CRIME AND INSANITY_ 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 Sir 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, spiritualism, divinings, and so on, will be read with avidity."--_Dundee Courier._ 31. _ASTRONOMY_ By A. R. HINKS, M.A., Chief Assistant, Cambridge Observatory, "Original in thought, eclectic in substance, and critical in treatment.... No better little book is available."--_School World._ 32. _INTRODUCTION TO SCIENCE_ By J. ARTHUR THOMSON, M.A., Regius Professor of Natural History, Aberdeen University. "For those who have not yet become possessed of the Library, this would form an appropriate introduction. Professor Thomson's delightful literary style is well known; and here he discourses freshly and easily on the methods of science and its relations with philosophy, art, religion, and practical life."--_Aberdeen Journal._ 36. _CLIMATE AND WEATHER_ By H. N. DICKSON, D.Sc. Oxon., M.A., F.R.S.E., President of the Royal Meteorological Society; Professor of Geography in University College, Reading. (With Diagrams.) "The author has succeeded in presenting in a very lucid and agreeable manner the causes of the movement of the atmosphere and of the more stable winds. The information throughout appears to be reliable, and is certainly conveyed in an attractive form."--_Manchester Guardian._ 41. _ANTHROPOLOGY_ By R. R. MARETT, M.A., Reader in Social Anthropology in Oxford University. "An absolutely perfect handbook, so clear that a child could understand it, so fascinating and human that it beats fiction 'to a frazzle.'"--_Morning Leader._ 44. _THE PRINCIPLES OF PHYSIOLOGY_ By Prof. J. G. MCKENDRICK, M.D. 46. _MATTER AND ENERGY_ By F. SODDY, M.A., F.R.S. 49. _PSYCHOLOGY, THE STUDY OF BEHAVIOUR_ By Prof. W. MCDOUGALL, F.R.S., M.B. IN PREPARATION _ELECTRICITY._ By Dr GISBERT KAPP. _CHEMISTRY._ By Prof. R. MELDOLA, F.R.S. _THE MAKING OF THE EARTH._ By Prof. T. W. GREGORY, F.R.S. _THE MINERAL WORLD._ By Sir T. H. HOLLAND, K.C.I.E., D.Sc. _THE HUMAN BODY._ By Dr A. KEITH, M.D., F.R.C.S. _PLANT LIFE._ By Prof. J. B. FARMER, F.R.S. _Philosophy and Religion_ 15. _MOHAMMEDANISM_