n, 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_

By Prof. D. S. MARGOLIOUTH, M.A., D.Litt. "This generous shilling's
worth of wisdom.... A delicate, humorous, and most responsible tractate
by an illuminative professor."--_Daily Mail._

40. _THE PROBLEMS OF PHILOSOPHY_

By the Hon. BERTRAND RUSSELL, F.R.S. "A book that the 'man in the
street' will recognise at once to be a boon.... Consistently lucid and
non-technical throughout."--_Christian World._

47. _BUDDHISM_

By M