7. MODERN GEOGRAPHY

By Dr Marion Newbigin. (Illustrated.) "Geography, again: what a dull, tedious study that was wont to be!... But Miss Marion Newbigin invests its dry bones with the flesh and blood of romantic interest."—Daily Telegraph.

9. THE EVOLUTION OF PLANTS

By Dr D. H. Scott, M.A., F.R.S., late Hon. Keeper of the Jodrell Laboratory, Kew. (Fully illustrated.) "The information is as trustworthy as first-hand knowledge can make it.... Dr Scott's candid and familiar style makes the difficult subject both fascinating and easy."—Gardeners' Chronicle.

17. HEALTH AND DISEASE

By W. Leslie Mackenzie, M.D., Local Government Board, Edinburgh. "Dr Mackenzie adds to a thorough grasp of the problems an illuminating style, and an arresting manner of treating a subject often dull and sometimes unsavoury."—Economist.

18. INTRODUCTION 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."—Westminster Gazette.

19. THE ANIMAL WORLD

By Professor F. W. Gamble, D.Sc., F.R.S. With Introduction by Sir Oliver Lodge. (Many Illustrations.) "A delightful and instructive epitome of animal (and vegetable) life.... A fascinating and suggestive survey."—Morning Post.

20. EVOLUTION

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. "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. "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. "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 Prof. H. N. Dickson, D.Sc.Oxon., M.A., F.R.S.E., President of the Royal Meteorological Society. (With Diagrams.) "The author has succeeded in presenting in a very lucid and agreeable manner the causes of the movements of the atmosphere and of the more stable winds."—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. "It is a delightful and wonderfully comprehensive handling of a subject which, while of importance to all, does not readily lend itself to untechnical explanation.... Upon every page of it is stamped the impress of a creative imagination."—Glasgow Herald.

46. MATTER AND ENERGY

By F. Soddy, M.A., F.R.S. "Prof. Soddy has successfully accomplished the very difficult task of making physics of absorbing interest on popular lines."—Nature.

49. PSYCHOLOGY, THE STUDY OF BEHAVIOUR

By Prof. W. McDougall, F.R.S., M.B. "A happy example of the non-technical handling of an unwieldy science, suggesting rather than dogmatising. It should whet appetites for deeper study."—Christian World.

53. THE MAKING OF THE EARTH

By Prof. J. W. Gregory, F.R.S. (With 38 Maps and Figures.) "A fascinating little volume.... Among the many good things contained in the series this takes a high place."—The AthenÆum.

57. THE HUMAN BODY

By A. Keith, M.D., LL.D., Conservator of Museum and Hunterian Professor, Royal College of Surgeons. (Illustrated.) "It literally makes the 'dry bones' to live. It will certainly take a high place among the classics of popular science."—Manchester Guardian.

58. ELECTRICITY

By Gisbert Kapp, D.Eng., Professor of Electrical Engineering in the University of Birmingham. (Illustrated.) "It will be appreciated greatly by learners and by the great number of amateurs who are interested in what is one of the most fascinating of scientific studies."—Glasgow Herald.

62. THE ORIGIN AND NATURE OF LIFE

By Dr Benjamin Moore, Professor of Bio-Chemistry, University College, Liverpool. "Stimulating, learned, lucid."—Liverpool Courier.

67. CHEMISTRY

By Raphael Meldola, F.R.S., Professor of Chemistry in Finsbury Technical College, London. Presents clearly, without the detail demanded by the expert, the way in which chemical science has developed, and the stage it has reached.

72. PLANT LIFE

By Prof. J. B. Farmer, D.Sc., F.R.S. (Illustrated.) "Professor Farmer has contrived to convey all the most vital facts of plant physiology, and also to present a good many of the chief problems which confront investigators to-day in the realms of morphology and of heredity."—Morning Post.

78. THE OCEAN

A General Account of the Science of the Sea. By Sir John Murray, K.C.B., F.R.S. (Illus.) "A life's experience is crowded into this volume. A very useful feature is the ten pages of illustrations and coloured maps at the end."—Gloucester Journal.

79. NERVES

By Prof. D. Fraser Harris, M.D., D.Sc. (Illustrated.) A description, in non-technical language, of the nervous system, its intricate mechanism and the strange phenomena of energy and fatigue, with some practical reflections.

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