400 



NATURE 



[January 16. 1919 



Chile. A preliminary report on the aim and equi$! 

 men) of the Calama expedition. C. B. Bridges; 



.Maroon, a recurrent mutation in DruMiphila. 



I ' ILCUTTA. 

 Asiatic Society of Bengal, November 6. E. Brunetti : 

 Review of progress in our knowledge of Orii-nt.il 

 Diptera during the last two decades. E. Vredenburg : 

 I in- occurrence of Cypraea nivosa, Broderip, in the 

 Mergui Archipelago. Among the shells from the 

 Mergui Archipelago collected by Dr. J. Anderson, and 

 1 in lSSS by Dr. von Martens, are two specir 

 mens of the ran- species Cypraea nivosa, Broderipj 

 hitherto only known from Mauritius, that have 

 erroneously been referred to Cypraea vitellus, I. inn., 

 which Cypraea nivosa superficially resembles. It is 

 not unlikely that, as in the case of the Mergui shells, 

 this uncommon species ma) have been mistaken in 

 other instances for the common Cypraea vitellus. 



BOOKS RECEIVED. 



Catalysis in Industrial Chemistry. By Prof. G. G. 

 Henderson. Pp. ix + 202. (London: Longmans and 

 Co.) as. net. 



Fungi and Disease in Plants. By E. J. Butler. 

 Pp. vi + 547. (Calcutta and Simla: Thacker, Spink, 

 and Co.) 15 rupees. 



The Turks of Central Asia in History and at the 

 PresentDay. By M. A. Czaplicka. Pp.242. (Oxford: 

 At the Clarendon Press.) 15s. net. 



A Bibliography of Indian Geology and Physical 

 Geography. With an Annotated Index of Minerals of 

 Economic Value. By T. H. D. La Touche. Part i. 

 Pp. xxviii + 571. Part ii. Pp. ii + 490. (Calcutta: 

 Office of the Geological Survey of India.) 5s. 4^. and 

 6s. respectively. 



How to Deal with Different Kinds of Fires. By 

 S. G. Gamble. Pp. 50. (London : The British Fire 

 Prevention Committee.) 3s. 6d. 



A System of Physical Chemistry. By Prof. 

 W. C. McC. Lewis. Second edition. In 3 vols. 

 Vol. i.. Kinetic Theory. Pp. xii + 494. Vol. ii.. 

 Thermodynamics. Pp. vi + 403. (London : Longmans 

 and Co.) 15.1;. net each vol. 



Catalytic Hydrogenalion and Reduction. Bv Dr. 

 E. B. Maxted. Pp. viii+104. (London: J. and A. 

 Churchill.) 4s. 6d. net. 



Surface Tension and Surface Energy, and their 

 Influiivi mi Chemical Phenomena. Bv Dr. R. S. 

 Willows and E. Hatschek. Second edition. Pp. viii-f 

 115. (London : J. and A. Churchill.) 4s. 6d. net. 



DIARY OF SOCIETIES. 



THURSDAY. January 16. 

 Royal Institution, at 3.— Prof. J. N. Collie : Chemical Studies of Oriental 



Porcelain. 

 Royal Society OF Aszs.su 4.30.-H. Kelway-Bamber. M.V.O. : Coal and 



Mineral Traffic on the Indian Railways. 

 LlNKKAN Society, at 5.— Capt. A. W. Hill : The Care of Soldiers' Graves. 



-N. E, Brown: Old and New Species of Mesembryanlhemum, with 



Critical Remarks —Dr. J. R. Leeson : Exhibition of Mycetozoa from 



Epping I 

 Mathematical Society, at 5.— Prof. Frechet : The Differential of 



Functional 1 iperations.— L. J. Mordell : The Value of a Definite 



Integral. 

 Chemical Society, at 8. 



FRIDAY, January .7. 

 Royal Institution, at 5.30.— Sir J. Dewar : Liquid Air and the War. 



MONO A Y, January 20. 

 Royal Geographical Society, at 5.— Lt.-Col. Winterbotham, R.E.: 



British Survey on the Western Front. 



TUESDAY. January ix. 

 Royal Institution, at 3.— Prof. Spenser Wilkinson: Lessons of the 

 War. 



British Association Geophv ..... at 5.— Dr. E. M. 



Wedderburn : Seiches — Dr. S. Chapman : Tidal Motions in the Atmo- 

 sphere. 



Royal Statistical Society, at 5.15.— Right Hon. Herbert S-imuel : 

 Presidential Address : The Taxation of the Various Classes of the People. 



Faraday Society.— Central Disautlcn: The Present Position of th- 

 Theory of lonisation.— At 5-6.-10. I inter : Introductory 



Address.— Prof. s. Arrheni I ■■ 1 e for I lytic Di 



tion.— Prof. S. F. Acree : Some In on 1 he Present 



Position of the Theory of lonisation.— Capt. J. W. McH.nu: Some 

 Fimdameiii.il Problems of the Dissociation Theory in Aqueous and Non- 

 aqueous Si. inn. his. W. R. Bon fi 



lonisation of an Aqueous Solution; Correction of the Transport 

 Numbers for Combined Water. Dl N. R, I>h..r: Some Aspects of the 

 Electrolytic Dissociation Theory.-At 8.— Dr. Henry I. S. 1 



Hydration of Ion-. I'rof. A. W. Porler: The Variation'of Electric Con- 

 ductivity ot Solutions with Concentration. — Dr. K. Newbery: The 

 Resistance of an Electrolytic Cell.— Capt. I. R. Partington : I In- Dilu- 

 1 a-». Dr. E. B. R. Prideaux : Pyrites and Ammonia— 1 



and .-separation. 



Institution of Petroleum TbcmnologuttSi at 5.30. — Andrew Campbell 



and W. I. Wilson : Paraffin Wax and its Manufacture. 

 Illuminating Engineering Society, al 8.— A. Wise opens a Discussion 



on Modern Practice in Office Lighting. 



WEDNESDAY, January 22. 



Royal .Society of Arts, at 4.30.— Col. H. G. Lyons: Meteorology 

 nl after the War. 



&EOLOGI \i Society, at 5.30.— C. J. Gilbert : The Occurrence of Extensive 

 Depositsof High-level Sands and Gravels Resting upon the Chalk at 

 Little Heath, near Uerkhamsied. — ('.. Barrow : Notes on the Correlation 

 of the above-mentioned Deposits with the High-level Gravels of the South 

 of England (or the London Basin). 



THURSDAY, January 23. 



Roval Institution, at 3.— Prof. J. N. Collie: Chemical Studies of 

 Oriental Porcelain. 



Royal Society, at $.-1,0.— Probable Pnptrs : Admiral Sir H. Jackson and 

 Prof. G. B. Bryan: Experiments Demonstrating an Electrical Effect in 

 Vibrating Metals.— Prof. T. H. Havelock: Wave Resistance: Some 

 Cases of Three-dimensional Fluid Motion.— W. S. Abell : Chances of Loss 

 of Merchant Shil 5. 



Institution of Electrical Engineers,' at 6.— A. P. M. Fleming : 

 Planning a Works Research Organisation. 



CONTENTS. page 



Chemistry for Students. By C. J 3S1 



Science Text-books for the Future. By R. S. W. . 382 



Planting in Maritime Localities. By W. J. B. . . 3S2 



Our Bookshelf 383 



Letters to the Editor: — 



Climograph Charts. — Sir Napier Shaw, F.R.S. . 383 



A University Association. — R. Douglas Laurie . 3S3 

 Airy and the Figure of the Earth. — Ottavio Zanotti 



Bianco ; Dr. C. G. Knott :- : 4 



Some Temperature Anomalies. — W. H. Dines, 



F.R.S. ... 584 



Cyclones.— R. Mountford Deeley; J. S. D. . . . 3S5 

 The Brussels Natural History Museum. — Prof. A, C. 



Seward, F.R.S 385 



Borings for Oil in the United Kingdom. By V. C. 



Uling 385 



The British Dye Industry 3S8 



The Preliminary Education of Medical Students . 38S 

 Theodore Roosevelt. By Sir H. H. Johnston, 



G.C.M.G., K.C.B 389 



Notes 390 



Our Astronomical Column : — 



The Origin of New Stars 394 



The Fayette County Meteorites ;<J4 



Eclipses and Transits of Japetus 394 



The Sugar Industry in India and Java 394 



The Flora of Macedonia 395 



The Mathematical Association 395 



Biology of a Life-table 396 



University and Educational Intelligence 396 



Societies and Academies 397 



Books Received 400 



Diary of Societies 400 



Editorial and Publishing Offices : 



MACMILLAN AND CO., Ltd., 



ST. MARTIN'S STREET, LONDON, W.C.2. 



tients and business letters to be addressed to the 

 Publishers. 



NO. 2568, VOL. I02] 



Editorial Communications to the Editor. 

 Telegraphic Address : Piiums, London. 

 Telephone Number : Gerrard S830. 



