Nature^ || 

 /fpril is, 1920 J 



Index 



xim 



Vicary, The Thomas, Lecture, Sir John Tweedy, 418 



Villamaninite, a New Mineral, Dr. W. R. Schoeller and 

 A. R. Powell, 326 



Vision : of the Possible : A, What the R.A.M.C. might 

 Become : An Account of Some of the Medical Work 

 m Egypt, together with a Constructive Criticism of 

 the R.A.M.C, Sir J. W. Barrett, 21 ; The Hill of, A 

 Forecast of the Great War and of Social Revolution 

 • with the Coming of the New Race, F. B. Bond, 690 ; 

 The Theory of, Sir Oliver Lodge, 454 



Visual Tests for Motor-drivers, 646 



Vitalism, Prof. Dakin, 578 



Volcanic Rocks in Northern Kordofan, Sudan, W. Campbell 

 Smith, 693 



Volumetric Analysis for Students of Pharmaceutical and 

 General Chemistry, C. H. Hampshire. Second edition, 



497 

 Voyage of a Vice-Chancellor, The, 151 

 Vulcanicity, Natural and Artificial, E. Belot, 575 



Wales : A Primitive Type of Man in, Prof. H. J. Fleure, 

 487 ; National Museum of, Annual Report of the, 639 



War Gleanings, 21 



Water : in Action — Controlled and Free, Dr. B. Cunning- 

 ham, 70; for Electrical Purposes, The General Prin- 

 ciples of the Development and Storage of, J. W. 

 Meares, i6i ; from the Atmosphere, Use of Trees in 

 Extracting, P. Descombes, 491 ; -lily, Immersion of the 

 Leaves of the, Causes of the, L. Daniel, 407 ; -power 

 and Dartmoor, 461 



Watt, James ; Proposal for a Memorial to, Sir D. Brooks, 

 74 ; Centenary Celebrations in Birmingham, 63, 74 ; 

 Address on, Rev. Dr. E. W. Barnes, 75 ; and Inven- 

 tion, Prof. Hele-Shaw, 75 



Wave Action in Harbours, The Reduction of, Dr. Brysson 

 Cunningham, 614 



Wax Scale from New Guinea, A New Species' ofj W. W. 

 Froggatt, 271 ■ 



Weather: Pioneers in the Science of the. Sir Napier Shaw, ! 

 613; Summer, 41; The Study of the, E. H. Chapman,' 

 312 



"Wedge" Pyrometer, The, 11 



Wellcome Chemical Research Laboratories, Publications of 

 the, 65 



Western : Australia, Sub-arid, Rock Expansion by Tem- 

 perature Variation in, J. T. Jutson, 108; Sub-arid, 

 The " Clawing " Action of Rain in, J. T. Jutson, 108 ; 

 The Plateau of, Montgomery, 570 ; The Royal Society 

 of, 578; Persia, A Rift-valley in, Prof. S. J. Shand, 490 ' 



Westinghouse : George, His Life and Achievements, G. E. 

 Leupp, 592 



Wheat : Production, the future of, 399 ; Yield, Australian 

 Rainfall and, 606 



"White Water," The, Capt. A. R. Palmer, Prof. J. 

 .Stanley Gardiner, 563 



Wild : Birds, The Protection of, 7 ; Life of the World : \ 

 Descriptive Survey of the Geographical Distribution 

 of .Animals, R. Lydekker, 3 vols., 69 



U'imblcdon, The Village Club at, 295 



Wind : and Barometric Gradient, W. H. Dines, 525 ; Direc- 

 tion and Cloud Amount af Richmond, on the Inter- 

 relation of, Lt. D. Brunt, 675 ; High velocity of the, 

 507 ; Velocity in the Stratosphere, Ch. Maurain, 618 ; 

 The Variation of, with Height, Capt. E. H. Chapman, 



67s 



Winnipeg, Greater, The Supply of Water to, 298 



Wireless : Communications, Imperial, appointment of a 

 Committee to prepare a scheme of, 340 ; Method of 

 Measuring e/ni. A, Dr. Whiddington, 454 ; Navigation 

 for Aircraft, Capt. J. Robinson, 24 ; Operations, 

 Mysterious Interruptions in, Mr. Marconi, 571 ; Society 

 of London, L. McMichael Elected Honorary Secretary 

 of the, 8 ; and the Post Office, 40 ; Telephony, Speak- 

 ing across the Atlantic by. Prof. J. A. Fleming, 179 ; 

 Telegraphy, Directive, as applied to Aircraft, Capt. 

 J. Robinson, 487; Text-book on. Prof. R. Stanley, 

 New edition in two volumes, 462 ; Time Signals, 380 



Wiring Rules of the Institution of Electrical Engineers, 

 Amended edition, 178 



Women : at Cambridge, 265 ; in Industry, The Economic 

 Future of. Sir L. Macassey, 9 



Wood for the spars of Aeroplane Wings, Tests on, J. R. 

 Watkins, 42 



Wooden Object, a Remarkable Carved, from Santa 

 Domingo, Dr. J. W. Fewkes, 378 



Wool, Fine, A Search for, Prof. J. C. Ewart, 153 



Works ; Management, F. C. Van Dyke, 543 ; Schools, 

 A. P. M. Fleming, and others, 522 



Worms : Luminous, Rev. S. Graham Brade-Birks, 23 ; Rev. 

 H. Friend, 334 



Wrekin, Round the, 331 



X-ray : and Electro-medical Apparatus, Watson and Son's 

 Catalogue of, 320 ; and y-rays. Scattering of, by Rings 

 of Electrons, G. A. Schott, 365 



-X-rays in,, Medical Science, Dr. A. C. Jordan, 237; in 

 Physical Science, Prof. W. H. Bragg, 235 ; The Funda- 

 mental Constants' of the Spectrometry of the, Ledoux- 

 Lebard and Dauvillier, 347 



Vale : Observatory, Dr. F. Schlesinger Elected Director of 

 the, 417; University, Bequest to, by J. W. Sterling, 

 67 ; The Lord Strathcona Legacy to, 146 



Yorkshire, The North Riding of, Capt. W. J. Weston, 4 



Voung-Helmholtz Theory of Colour-vision and Colour- 

 blindness, The Adequacy of the, Prof. W. Peddle, 715 



Y.M.C.A. in Egypt, The War Work of the, Sir J. W. 

 Barrett, 560 



Youth, The Waste of, Prof. F. Soddy, 89 



Zoological : Sculpture in Art and Architecture, S. B. P. 



Trowbridge, and others, 117; Society of London, 



Prosperity of the, 444 

 Zoologists, The Salaries and Remuneration of, 554 

 Zoology: and Human Welfare, Dr. J. F. Gemmill, 21 ; at 



the British .Association, Prof. J. H. .\shworth, 456; The 



Teaching of, in Schools, 554 



o. 



