Nature. 

 September 29, 192 



.] 



Index 



Iv 



United Kingdom, University Statistics of the, 1919-20, 554 

 United States : Annual Report of the Commissioners of 

 Education for the, 91 ; Climates, Essential Charac- 

 teristics of, Prof. R. de C. Ward, 180; Cloudiness in 

 the, Prof. R. de C. Ward, 693 ; Coast and Geodetic 

 Survey, Report of the Director, 533 ; Department ol 

 Agriculture, Annual Report of the Entomologist to the, 

 Dr. L. O. Howard, 343 ; Endowment of Scientific Re- 

 search in the, 719; Forest Policy, The, Prof. J. Ise, 

 326 ; Forestry in the, 326 ; Formation of a Science 

 Service in the, 370 ; Funds Available in 1920 in the, 

 for Scientific Research, 475 ; Geological Survey, Report 

 of, for Year ending June 30, 1918, 151 ; Mineral Re- 

 sources of the, in 19 19, 309 ; Patent Office, A Movement 

 for Reforms in the, 277 ; National Academy of Sciences, 

 Annual Meeting of the, 539 ; National Research Coun- 

 cil, Publications of the, J. W. Williamson, 121 ; 

 Organisation for the Conservation of the Natural Re- 

 sources of the, 534 ; Rate of Growth of the Population 

 of the, since 1790, Prof. R. Pearl and L. J. Reed, 94 : 

 Rate of Increase of Underground Temperature with 

 Increasing Depth in the, N. H. Darton, 344 ; Stud^ 

 of Medicine in the, 798; University Education in the. 



794 



Univalent Oxygen, A Compound which may Contain, C. V." 

 Porter and F. H. Thurber, 600 



Universities : of the Empire, Congress of the, 610, 655 ; 

 The Yearbook of the, 192 1, edited by W. H. Dawson, 

 519, -The, and Research, Prof. J. Joly, 760; The, and 

 Technological Education, Lord Crewe, and others, 656 ; 

 Prof. A. Smithells, 695 ; Prof. W. W. Watts, 726 ; The 

 Nationalisation of the, Viscount Haldane, 733 



University : and Civil Service Salaries, 801 ; Education in 

 the United States, 794 ; Finance, 737 ; Grants and 

 Needs, 65 ; in the Civil Service Estimates, 225 ; Statis- 

 tics of the United Kingdom, 1919-20, 554; Teachers, 

 Association of, Address to the, Prof. J. Strong ; Elec- 

 tion of Officers of the, 701 



Unknown, The Inspiration of the, Prof. E. B. Poulton, 537 



Upper : Air, International Exploration of the, C. J. P. 

 Cave, 761 ; Shiri River, Nyasaland, The Natural His- 

 tory of the, Prof. R. Newstead, 381 



Urea in the Liver after Death, The Formation of, R. Fosse 

 and Mile. V. Rouchelman, 222 



Uric Acid in the Liver, Arrest of, Chaffard, Brodin, and 

 Grigaut, 94 



Utah, The Ore Deposits of, B. S. Butler, G. F. Loughlin, 

 V. C. Heikes, and others, 484 



Vaccination, Dr. Mary Scharlieb, 244 

 Vaccines, Toxins and Antitoxins, Standardisation of, 161 

 Vacuole, The Contractile, Prof. W. M. Bayliss, 810 

 Vacuum Tubes Used as Detectors of Electrical Oscillations, 



L. Hartshorn and E. S. Keeping, 445 

 Valentian Series, The, Prof. O. T. Jones, 350 

 Valerian, The Alkaloids of, A. Goris and C. Vischniac, 383 

 Vanadic Acid and Hydrogen Peroxide, Double Catalysis of, 



V. Auger, 542 

 Vaporisation. The Latest Heats of, E. K. Rideal, 126 

 Varro's Aviary at Casinum, A. W. Van Buren and R. M. 



Kennedy. 500 

 Vector Analysis : Elementary, with Application to Geometry 

 and Physics. Dr. C. E. Weatherburn, 744; Symbols 

 in, R. H. Nisbet, 362 

 Vectorial Calculus, Applications of, to Astronomy, 



A. Abetti. 671 

 Vectors and Tensors, E. A. Milne, 30 



Vegetation : around London Earlier than in the Provinces, 

 C. Harding, 269 ; in the English Lakes, The Develop- 

 ment of. Considered in Relation to the General Evolu- 

 tion of Glacial Lakes and Rock Basins, W. H. Pearsall, 



509 

 Venereal Disease, Prevention of, Sir G. Archdall Reid, 195 ; 



The Conquest of, 195 

 Venus : Spectrum of. Displacement of Lines in the, 



Dr. C. E. St. John and S. B. Nicholson. 725 ; The 



Occultation of, ';66, Photographs of. F. Ou^n'sset, 670 ; 



The Rotation of. Prof. W. H. Pickering, 88 

 Vertebrate Morphology, 229 



Vertical Temperature Gradient in the Atmosphere, L. De 

 Marchi, 671 



Vesperugo pipistrellus, A Trypanosome of the Bat, E. Chat- 

 ton and R. Courrier, 478 



Vibrations of a Spring Disc, The, Prof. H. Lamb and 

 R. V. Southwell, 318 



Victoria, Palaeozoic Geology of, E. O. Teale, 828 



Vienna, Retired University Professors in, Condition of, 

 178 



Viscosity : Effect of, on Orifice Flows, W. N. Bond, 350 ; 

 of Water and Low Rates of Shear, Dr. A. Griffiths and 

 Constance H. Griffiths, 350 



Vision. The Theory of. Dr. F. W. Edridge -Green, 361 



Vitamines, The Designation of. Prof. A Liversidge, 45 ; 

 Prof. H. E. Armstrong, 72 



Vitamins, Prof. Mellanby, 568 



Vowel Sounds, Nature of, C. de Wesendonk ; Prof. E. W. 

 Scripture, 12, 333 ; Prof. C. V. Raman, 332 



Vulsinio System, Unity of the, V. Sabatini, 254 



Wa-Vumba Tribe in the Delta of the Umba River, Sur- 

 vivals of the Regalia of the, A. Dirkson, 215 



Wages-regulation, Index-numbers and. 513 



Wales : Collection of Rural Lore in. by School-children, 

 Sir Alfred T. Davies, 124; National Museum of, 

 .Annua' Report of the, 85 ; The University of, Honorary 

 Decrees to be Conferred on, Prof. T. W. E. David, 

 Sir J. J. Dobbie, and Prof. A. Gray, 507 



Walrus, The, in Northern Scotland, Dr. J. Ritchie, 53 



War Memorial, A, 675 



Warrington Museum, G. A. Dunlop appointed Keeper of 

 the, 85 



Water : -beetles of the Family Hydrophilidae, Life-history 

 and Biolc^y of, E A. Richmond, 150; -divining in 

 Australia, Dr. Griffith Taylor. 822 : in Transformer 

 Oils, The Estimation of, E. Rengade and J. Clostre, 

 709 : -power and the Development of the Mineral 

 Industry, Dr. J. W. Evans, 5:96 ; -supply of Bucking- 

 hamshire and Hertfordshire, The, W. Whitaker, 565 ; 

 Underground, Th^? Drought and, B. Hobson, 684 



Waterways, Inland. Dr. Brysson Cunningham, 48 



Waves of .\rbitrary Form in Isotropic Media, Propagation 

 of, G. A. Maggi, 127 



Weather : Forecasts for Agricultural Purposes, Summer 

 Service of, 598; in July, The, 756; Prediction, A, 

 Abb^ Moreux. 84 ; The, a Comparison of Previous 

 Winters, 309: The Dry, 23, 534 



Wehnelt Interrupter, A New Form of, F. H. Newman, 

 318 



Weismannism, Prof. E. W. MacBride, 89 



Welcome Chemical Research Laboratories, Presentation of 

 a Gold Medal to Dr. F. B. Power to Commemorate 

 his Directorship of the, 466 



Welsh National School of Medicine, A. W. Sheen appointed 

 Professor of Surgery in the, 604 



West Indian Zoology, Prof. J. Stanley Gardiner, 829 



Western Australia : Geological Survey of. Issue of a Series 

 of Memoirs for Prospectors and Miners, 279 ; Univer- 

 sity of, Prof. A. D. Ross elected a Member of the 

 Governing Body of the, 349 ; Utilisation of the Artesian 

 Water Resources of, A. G. Maitland, 501 



Weyl's Theory of the Electromagnetic and Gravitational 

 Fields, A Generalisation of. Prof. A. S. Eddington, 



Wheat : Home-grown, 89 ; Species and Races of. Prof. J. 

 Percival, 538 



White. Gilbert, proposed Memorial to, 370 



Wild : Birds Advisory Committees for England and Scot- 

 land. Meetings of the, 369; Unmasked, The, F. St. 

 Mars, 200 



Wind : Utilisable Energy of the. Col. G. A. Crocco, 478 ; 

 Velocity and Direction at Different Heights, Diurnal 

 Variation in, J. Durward, 693 



Wire-drawing, Critical Points due to Hardening caused 

 by, L. Guillet and M. Ballay, 639 



" Wired Radio," R. D. Duncan, 87 



Wireless : Telegraph Apparatus, Demonstration of New, 

 563 ; Telegraphy : with Sp>ecial Reference to the 

 Quenched-spark System, B. Leggett, 390; Direction- 

 finding, and Marine Navigation, J. J. Bennett, 363 ; 

 Telephony, Demonstrations of, 369 ; The Possibilities 



