NATURE [October 5, 1905 



MACMILLAN^ LATEST LIST. 

 THE GEOLOGY OF SOUTH AFRICA. 



By F. H. HATCH. Ph.D., M.InSt.C.E., President of the Geological Society of South Africa; and 

 G. S. CORSTORPHINE, B.Sc, Ph.D., Consulting Geologist to the Consolidated Goldfields of South Africa. 



8vo. 2.\s. net. 

 SATURDA Y REVIEW'. — "'X\\^ recent rapid advance of freological investigation in these two countries is a good sign for 

 the future, and towards the continuance of that progress no better aid can be asked than the admirable summary provided by these 

 two most competent geologist.=." 



SEVENTH EDITION. REVISED AND ENLARGED. 



THE ELEMENTARY PART OF A TREATISE ON THE DYNAMICS OF A SYSTEM OF RIGID BODIES. 



Being Part I. of a Treatise on the whole Subject. 

 By EDWARD JOHN ROUTH, Se.D., LL.D., F.R.S., &c. With numerous Examples. Svo. 14J. 



NEW AND REVISED EDITION, NOW READV. 



A TREATISE ON CHEMISTRY. 



By SIR H. E. ROSCOE, F.R.S., and C. SCHORLEMMER, F.R.S. 



Vol. I. — The Non-Metallic Elements. New Edition, completely revised by Sir H. E. RoscoE, assisted by Dr. H. G. Colman 

 and Dr. A. Harden. With 217 Illustrations. Svo. 2\s. net. 

 ATHEN.^UM. — " It is almost superfluous to say that the work maintains its original high standard, and is pre-eminent 

 among works of its class in all languages." 



For the Use of LOCAL INSPECTORS and DEALERS. 



By MAJOR A. COOPER-KEY, H.M. Inspecior of Explosives. 

 Edited by Captain J. H. Thomson, H.M. Chief Inspector of Explosives. Fcap. Svo. is. 

 NATURE. — "This little book should prove of great value to those for whose benefit it has been mainly written, viz., the 

 local inspectors under the Explosives Act, and those dealers whose trading necessitates the handling and storage of explosives." 



FOURTH EDITION, REVISED AND ENLARGED. NOW READV. Globe Svo. 4J. 6rf. 



ELEMENTARY TRIGONOMETRY. 



By H. S. HALL, M.A., and S. R. KNIGHT, B.A. 



This edition is adapted to all the modern requirements. In particular, it contains Graphs 01 the Trigonometrical Functions, 

 and Examples of their use. A special feature is the large number of Examples in illustration of Four-Figure Tables. Tables of 

 Logarithms, Anti-logarithms, Natural and Logaiithmic Functions (specially compiled) are given at the end of the book. 



' ^* The old edition is still on sale. 



SIMPLE LESSONS ON HEALTH 



FOR THE USE OF THE YOUNG. 



By SIR MICHAEL FOSTER, K.C.B., M.P., &e. Fcap. 8vo. i^. 

 LANCET. — " The chapter on food and drink is conceived and expressed in a rational and common-sense manner, is in a 

 high degree adapted to a child's comprehension, and calculated to convey a proper impression concerning the subject. The other 

 chapters of the book deal with fresh air, light and cleanliness, and are excellently clear expositions of their subjects. Sir 

 Michael Foster, in our opinion, has done good service by publishing this little volume." 



MAC H I N E CONSTRUCtrON Ar^TORAWI NG 



By FRANK CASTLE, M.I.M.E., Mechanical Laboratory, Royal College of Science, Souih Kensington, Lecturer 

 in Machine Drawing, Building Construction, and Mathematics at the Morley College, London. Globe 4to, limp cloth. i,s. 6d. 

 N.-ITURE. — "The book can be cordially recommended for use in drawing classes, and to young engineers whj are seeking 

 after knowledge on which to base subsequent work in machine design." 



OCTOBER NUMBER NOW READV. 



■37 XX IB S O XX O O X^ T^iT O X?, X- X>. 



A MONTHLY MAGAZINE OF EDUCATIONAL WORK AND PROGRESS. 

 Sixpence Monthly. Yearly Volume ys. 6ci. Ntr. 

 Principal Contents for October. 

 The Salaries of Teachers in America. F'rom a Correspondent. — Mathematics under the New? Army 

 Regulations. By .A. E Broomfield, B.A. (Illustrated.).— The Teaching of General European History : I. Introductory. By 

 W. H. Weedon. II. For Higher Forms. By A. J. Evans, M. A.— Educational Aims and Methods. Suggestions by 

 the Board of Education. — Instruction and Training of Pupil Teachers. By A. J. .\rnold, B.A. — Technical Education in Evening 

 Schools. — A Treatise on Chemistry. — Geography as Nature Study. — Education in Scotland. — Correspondence: The 

 Position of Teachers in Natal. By a Natal Teacner. — The Teaching of Modern Languages. By G. Brackenbary, B.A. — Use of 

 the Words " Mass" and " Weight." By T. J. Gardner. 



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