164 



NATURE 



[October 8, 1914 



conceal their secrets, but words indicative of abstract 

 ideas are wanting altogether. The paper also deals 

 with many important features of the genuine gypsy 

 language from the points of view of phonetics, 

 morphology, vocabulary, etc. 



BOOKS RECEIVED. 



The Canterbury College, Christchurch, New 

 Zealand. 41st Annual Report. June. Pp. 47. 

 (Christchurch, N.Z. : Canterbury College.) 



Koninklijk nederlandsch Meteorologisch Instituut. 

 No. 106. Ergebnisse Aerologischer Beobachtungen i. 

 1909-12. Pp vi4-i46. (Utrecht: Keminck and 

 Zoon.) 



Regenwaarnemingen in Nederlandsch-Indie. Deel 

 ii. Uitkomsten. Pp. 170. (Batavia.) 



Life : Its Origin and Energy Mechanism. By 

 Jadroo. Pp. 32. (London : H. Kimpton.) is. net. 



Imperial Department of Agriculture for the West 

 Indies. Report on the Agricultural Department, 

 Dominica, 1913-14. Pp. 49. (Barbados Imperial 

 Commissioner of Agriculture.) 6d. 



University of Durham. Armstrong College, New- 

 castle-upon-Tyne. Calendar, Session 1914-15. Pp. 

 534. (London and Newcastle : A. Reid and Co., Ltd.) 



IS. 



Specimens of Languages from Southern Nigeria. 

 By N. W. Thomas. Pp. 143. (London : Harrison 

 and Sons.) 4s. net. 



The World of Life. By Dr. A. R. Wallace. New 

 and cheaper edition. Pp. xvi + 408. (London : Chap- 

 man and Hall, Ltd.) 6s. net. 



Examples in Arithmetic, Extracted from the Public 

 School Arithmetic. By W. M. Baker and A. A. 

 Bourne. Pp. xii + 217 + lii. (London: G. Bell and 

 Sons, Ltd.) 2S. 



Modern Instruments and Methods of Calculation. 

 Edited by E. M. Horsburgh. Pp. vii-f-343. (London : 

 G. Bell and Sons, Ltd. ; Edinburgh : Royal Society of 

 Edinburgh.) 6s. net. 



Transactions of the Royal Society of Edinburgh. 

 Vol. xlix., part iii. Session 1912-13. Pp. 531-829. 

 Vol. xlix., part iv. Session 19 13-14. Pp. 830. Vol. 1., 

 part i. Session 1913-14. Pp. 251. (Edinburgh : R. 

 Grant and Son ; London : Williams and Norgate.) 

 30s., 2 IS. gd., 25s. qd. respectively. 



The National Physical Laboratory. Report for the 

 Year 19 13-14. Pp. 144. (Teddington : W. F. Par- 

 rott.) 



The National Physical Laboratory. Collected Re- 

 searches. Vol. xi., 1914. Pp. iv + 320. (London : 

 Harrison and Sens.) 20s. 



Department of the Interior. Weather Bureau. 

 Annual Report of the Weather Bureau for the Year 

 191 1. Part iii., Meteorological Observations Made at 

 the Secondary Stations during the Calendar Year 

 191 1. Pp. 266. (Manila : Bureau of Printing.) 



Board of Agriculture and Fisheries. Annual Report 

 of the Horticultural Branch. Proceedings under the 

 Destructive Insects and Pests Acts, 1877 ^"^ 1907, 

 and the Board of Agriculture Act, 1889 (Section 2, 

 Sub-Section 3) for the Year 1913-14. Pp. vii + 79. 

 (London: H.M.S.O. ; Wyman and Sons, Ltd.) 4|d. 



The Propagation of Disturbances in Dispersive 

 Media. By Dr. T. H. Havelock. Pp. viii + 87. 

 (London : Cambridge University Press.) 3s. 6d. net. 

 Lead Poisoning, from the Industrial, Medical, and 

 Social Points of View. By Sir T. Oliver. Pp. x + 294. 

 (London : H. K. Lewis.) 5s. net. 



The Principle of Relativity. By E. Cunningham. 

 Pp. xiv + 221. (London: Cambridge University Press.) 

 9s. net. 



NO. 2345, VOL. 94] 



Experimental Studies in Electricity and Magnetism. 

 By F. E. Nipher. Pp. 73. (Philadelphia : P. Blakis- 

 ton's Son and Co.) 1.25 dollars net. 



The North of Scotland College of Agriculture. 

 Calendar, Session 1914-15. Pp. 182. (Aberdeen : 

 Milne and Hutchison.) 



The University of Leeds. Calendar, 1914-15. Pp. 

 698. (Leeds : Jowett and Sowry.) 



Stellar Movements and the Structure of the 

 Universe. By Prof. A. S. Eddington. Pp. xii + 266. 

 (London : Macmillan and Co., Ltd.) 6s. net. 



The Idealistic Reaction against Science. By Prof. 

 Aliotta. Translated by A. McCaskill. Pp. xxii + 483. 

 (London : Macmillan and Co., Ltd.) 12s. net. 



Modern Pig-Sticking. By Major A. E. Wardrop 

 and others. Pp. xii + 304. (London: Macmillan and 

 Co., Ltd.) los. net. 



Macmillan 's Geographical Exercise Books. I., The 

 British Isles. With Questions by B. C. Wallis. 

 (London : Macmillan and Co., Ltd.) 6d. 



DIARY OF SOCIETIES. 



MONDA Y, October 12. 

 Institution of Mechanical Engineers (Graduates), at 8. — The Recla- 

 mation of Waste Products in Industrial Undertakings : p-.H. Ayres. 

 Jt'NiOR Institution of Engineers, at 8.— Cotton Spinning : W. Scott 

 Taggart. 



FRIDAY, October i6. 

 Institution of Mechanical Engineers, at 8. — Report of the Refrigera- 

 tion Research Committee : Sir J. Alfred Ewing. 



CONTENTS. PAGE 



Germany's Aims and Ambitions. By Sir William 



Ramsay, K.C.B., F.R.S 137 



The Geography of the British Empire. ByG. G. C. 139 



Popular Natural History 140 



Electrical Engineering. By Prof. David Robertson 142 



Celestial Mechanics. By H. C. P 143 



Our Bookshelf I44 



Problems of the Penguinery. {Illustrated.) .... 145 

 The Protective Treatment Against Typhoid Fever. 



By Stephen Paget 146 



The British Association in Victoria. By Dr. T. S. 



Hall ..." 147 



Notes 148 



Our Astronomical Column :— 



A New Comet IS^ 



Cornel i9i3/(Delavan) 151 



The Return of Encke's Comet . . IS^ 



Enhanced Lines and the Presence of Hydrogen . . . 151 



The Leeds Astronomical Society 151 



Geology in British Africa. {Illustrated) 152 



The Institute of Metals. ByJ. L. H 153 



Forthcoming Books of Science 154 



The Australian Meeting of the British Association — 

 Section M.— Agriculture. — Address by A. D. Hall, 



M. A,, F.R.S. , President of the Section . . 156 



University and Educational Intelligence 162 



Societies and Academies 163 



Books Received . 164 



Diary of Societies 164 



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Editorial Communications to the Editor. 



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 Telephone Number : Gbrrard 8830. 



