460 



NATURE 



[January i, 1920 



BOOKS RECEIVED. 



Applied Chemistrv. By Dr. C. K. Tinkler and 

 H. .Masters. Vol. i. Pp. xii + 292. (London: 

 Crosby Lockwood and Son.) 12.S. 6d. net. 



Wonders of Insect Life. By J. H. Crabtree. 

 Pp. viii + 211+32 plates. (London: G. Routledge and 

 Sons, Ltd.) 6s. net. 



The Natural Wealth of Britain. By S. J. Duly. 

 Pp. x + 3iq. (London: Hodder and Stoughton.) 6s. 

 net. 



Instincts of the Herd in Peace and War. By 

 W. Trotter. Second edition. Pp. 264. (London : 

 T. Fisher Unwin, Ltd.) 8s. 6d. net. 



Popular Chemical Dictionary. By C. T. Kingzett. 

 Pp. vi + 368. (London: Bailli'^re, tindall, and Cox.) 

 iS-s. net. 



Industrial Gases. By Dr. H. C. Greenwood. 

 Pp. xvii + 371. (London: Bailliere, Tindall, and Cox.) 

 I2S. 6d. net. 



Fifty Years in the Royal Navy. By Admiral Sir 

 Percy Scott. Pp. xviii + 358. (London : "John Murray.) 

 21.S. net. 



The Fungal Diseases of the Common Larch. By 

 W. E. Hiley. Pp. xi + 204. (Oxford: At the 

 Clarendon Press.) 125. 6d. net. 



A Non-Euclidean Theory of Matter and Electricity. 

 By P. A. Campbell. Pp. 44. (Cambridge, Mass. : 

 G. H. Kent.) 35 cents. 



DIARY OF SOCIETIES. 



THURSDAY, Tanhary i. 



RovAL Institution OF Great Britain, at 3.— Prof. \V. H. Bragg: The 

 World of Sound : Sound and Music (Christmas Lectures). 



FRIDAY, January 2. 



RovAi. Gfographical Societv (at /Eolian Hall), at 3.30.— Miss Hilda 

 Bowser : A Visit to the Diamond Mountain in Korea (Christmas Lecture 

 to Young People). 



RovAL Society of Arts (Indian Section), at 4.30. — A. P. Morris: 

 Burmese Village Industries: Their Present 'State and Possible Develop- 

 ment. 



Junior Institution of Engineers, at 7.30.— A. V. Sims: Automatic 

 Electric Weighing Machines, as used with Machine Packers. 



SATURDAY, January 3. 

 Royal Institution of Great Britain, at3.— Prof. W. H. Bragg: The 

 World of Sound : SounJs of the Country (Christmas Lectures). 



MONDAY, January 5. 



British PsvcHOLOCiCAL Society (Education Section) (in Mathematics 

 Theatre, University College), at 2.30.— Dr. P. B. Ballard : The Develop- 

 ment of Mental Tests. 



RovAi, Institute of British Architects, at 8. 



Society of Chemical Industry (at Chemical Society), at 8.— E. V. Evans: 

 The Natural and Acquired Facilities Existing in the Occupied Area of 

 Germany for the Manufacture of Chemical H'roducts— the Outstanding 

 Impressions resulting from an Inspection of Chemical Works in that 

 Area, and a Consideration of the General Position in the Light of more 

 Recent Developments in this Country.— Dr. G. S. Walpole : The Col- 

 lective Effort of German Chemistry Industry. 



Royal Geographical Society (at .^olian Hall), at 8.30.— Prof. J. W. 

 Gregory ; The African Rift Valleys. 



TUESDAY, January 6. 

 Royal Institution of Great Britain, at 3.— Prof. W. H. Bragg 



The World of Sound : Sounds of the Town (C^iristmas Lectures). 

 Royal Photographic Society (Technical Meeting), at 7.— Dr. G. H. 



Rodman : The X-Ravs approached from the Popular Standpoint. 

 Rontgen Society (at Medical Society of London), at 8.15. 



WEDNESDAY, January 7. 

 Royal Society of Art--, at 3.— L. Pendred : Railways and Engines 



(Juveni'e Lecture). 

 Physical Societv of London (at Exhibition of Apparatus, in conjunction 



with the Optical Society, at the Imperial College of Science), at 4.— 



Prof. Rankine; The Use of Liijht in the Transmission and Reproduction 



of Speech ; at 8.— Prof, F. J. Cheshire : Some Polarisation Experiments. 

 Geological Society of London, at 5.30.— S. S. Buckman : Jurassic 



Chronology: I. Lias. Supplement I. West England Strata.— F. J. 



North: S>ringothyris, Winchell, and Certain Carbonifeioui Brachiopoda 



refetred to Spiriferina. 

 Royal Society of Medicine (Surgery, Subsection of Proctology), at 



5.36. — Dr. W. M. Telling ani Others: Diverticulitis. 

 Royal Aeronautical Society (at Royal Society of Arts), at 8. 

 Institution of Automobh e Knginekks (at Institution of Mechanical 



Engineers), at 8.— Lt.-Col. D. J. Smith; Producer Gas for Motor 



Vehicles. 



THURSDAY, January 8. 

 Roval Institution of Great Britain, at 3.— Prof. W. H. Bragg : 



The World of Sound : Sounds of the Sea (Christmas Lectures). 



NO. 2618, VOL. 104] 



Phvs'ical Societv of London f.it I^vhiijit on uf Apparatus, in conjunction 



with the Optical Society, at thp Imperial t>>llege of Science), at 4.— 



Prof. F. J. Cheshire : Some Po!a'i<;ation F.xperiments ; at 8. — Prof. 



Rankine : The Use of Light in the Transmission and Reproduction of 



Speech. 

 Institution of Electrical Engineers (at Institution of Civil Engineers), 



at 6. — J. Shepherd : Failures of Turbo-Generators and Suggestions for 



Improvements. 

 Optical Society, at 7.30. 

 Institution of Automobile Engineers (at 28 Victoria Street), at S. — 



T. Clarkson : Steam Vehicles. 



FRIDAY^ January g. 

 Royal Astronomical Society, at 5. 

 M alacological Society of London (at the Linnpan Society), at 6. — 



Dr. S. S. Berry: A New Species of Mitra from California. — Dr. A. P.. 



Boycott : Local Variation in Size o^ Clnusilia bidentaia and Ena obscura. 



— H. C. Fulton: Molluscan Notes, IV, 



SATURDAY, January 10. 

 Royal Tnstitutiom of Great Britain, at 3. — Prof. W. H. Bragg: 

 The World of Sound : Sound in War (Christmas Lecturer). 



CONTENTS. PAGE 



British Iron Ores. By Prof. H. Louis 429 



Alcohol 431 



A Great Artist of Nature. By J. G. M. 432 



Submarines and Sea Power. By A. B. T 433 



Our Bookshelf . . ... 434 

 Letters to the Editor : — 



Atomic Energy. — Sir Oliver J. Lodge, F.R.S. . . 435 

 Metamorphosis of Axoloti caused by Thyroid-feeding. 



— Julian S. Huxley .... 435 



The Hibernation of the House-fly. — Right Hon. Sir 



Herbert Maxwell, Bart., F.R.S 435 



The Magnetic Storm of August 11-12, 1919. — 



J. Evershed, F. R.S. . .' 436 



Deflection of Light during a .Solar Eclipse — Prof. 



Alexr. Anderson 436 



Entente Scientific Literature in Central Europe during 



the War. — Robert W. Lawson 436 



Royal Meteorological Society's Phenological Returns. 



— H. B. Adames and-J. Edmund Clark . . . 437 

 Einstein's Theory and a Map Analogue. — E. Cun- 

 ningham 437 



The Sun Dance of the Teton Sioux. {JMusUaiei.) 



By Frances Densmore . . 437 



The International Hydrographic Conference . . . 440 



A Shakespearean Garden 441 



A Research Institute for New Zealand 442 



Dr. Cyril G. Hopkins. By Dr. E. J. Russell, F.R.S. 442 



Notes 443 



Our Astronomical Column : — 



Fireball on December 25 448 



Comets ... 448 



Radiation Pressure 448 



The Orion Nebula 448 



Spherical Shell Crystals in Alloys. (Illustrated.) 



By H. C. H. C 448 



Forecasting Frosts By B. A. Keen 450 



Lubrication and Lubricants. By L. A 451 



Adult Education . 452 



An Obscure Disease, Encephalitis lelhargica. By 



C. H. B. . 452 



Exploration of Northern Greenland 453 



Aquatic Fauna of Seistan . . 453 



Physics at the British Association 454 



Chemistry at the British Association 455 



Zoology at the British Association. By Prof. J. H. 



Ashworth, F.R.S 456 



University and Educational Intelligence . . . 457 



Societies and Academies ... .... 458 



Books Received 460 



Diary of Societies 460 



Editorial and Publishing Offices : 



MACMILLAN AND CO., Ltd., 



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



Advertisements and business letters to be addressed to the 



Publishers. 



Editorial Communications to the Editor. 



Telegraphic Address: Phusis, London. 



Telephone Number : Gerrard 8830. 



