Nature, "1 



September 29, 1921J 



Index 



XXI 



Power (Dr. F. B.), presented with a Gold Medal by H. S. 

 Wellcome, 466 



Prankerd (T. L.), Studies in the Cytology of the Statolith 

 Apparatus in Plants, Viewed in Relation to their Habit 

 and Biological Requirements, 317 



Pride (A.j, Scarcity of Swallows, 779 



Priestley (Prof. H. J.), Relativity and the Deviation of 

 Spectral Lines, 43 ; The Development of the Theory 

 of Relativity, 440 ; The Displacement of Spectral Lines 

 by a Gravitational Field, 585 



Prior (Dr. G. T.), The Chemical Composition of the Adare 

 and Ensisheim Meteorites, 189 



Proudman (Prof. J.), Ocean Tides, 176, 300 



Punnett (Prof.), and the late Major P. G. Bailey, Inherit- 

 ance of Egg-colour and Broodiness in Poultry, 85 



Pycraft (W. P.), The Sea-shore, 103 



Pye-Smith (Prof. R. J.), [obituary], 178 ; bequest to Sheffield 

 University, 507 



Qu^nisset (F.), Photographs of the Planet Venus, 670 



Ramage (A. G.), The Conditions for Mirage on the Queens- 

 ferry Road, 639 

 Raman (Prof. C. V.), Conical Refraction in Biaxial 

 Crystals, 747 ; The Colours of Breathed-on Plates, 714 ; 



The Nature of Vowel Sounds, 332 

 Ramsay (the late Sir William), a Memorial Tablet to be 



Placed in Westminster Abbey, 691 

 Ramsbottom (Dr. A.), appointed Professor of Clinical 



Medicine in Manchester University, 380 

 Ramsbottom (Capt. J.), Collection of Plants made by various 



members of H.M. Salonika Forces, 92 

 Rankine (Prof. A. O.), Molecular Structure and Energy, 



203 ; The Viscosity and Molecular Dimensions of 



Gaseous Cynanogen, 412 

 Ranque (G.), A New Mercury Lamp, 670 

 Ransom (H. B.j, [obituary], 114 

 Ransome (F. L.), The Copper Deposits of Ray and Miami, 



Arizona, 59 

 Rasmussen (K.), Forthcoming Expedition to the Arctic 



Regions, 308 

 Ratner (Dr. S.), Polarisation Phenomena in an X-ray Bulb, 



522 

 Raw (Lt.-Col. N.), Immunity in Human Tuberculosis, 148 

 Ray (S. H.), Commerce and Customs of Papua, 26 

 Rayleigh (Lord), Colour of the Light from the Night Sky, 



158 ; The Aurora of May 13-15, 392 ; The British Science 



Guild, 314; The Common Occurrence of Aurora in the 



South of England, 137 ; Young's Interference Experi- 

 ment, 298 

 Read (Carveth), The Origin of Mart and of his Superstitions. 



710; title of Emeritus Professor of Philosophy and 



Comparative Psychology conferred upon, by London 



University, 572 

 Read (Sir Hercules), impyending Retirement of, 342; The 



Design of Museums, 436 

 Reay (Lord), [obituary], 720 

 Reboul (G.), and R. Luce, The Influence of the Geometrical 



Form of Solid Bodies on the Chemical Actions which 



they Undergo, 319 

 Recknagel (Prof. A. B.), and Prof. J, Bentley, jun., Forest 



Management, 326 

 Redfield (A. H.), Foreign Graphite in 1919, 795 

 Redmayne (Sir R. A. S.), Pulverised Coal as a Combustible, 



812 ; The Importance of Research in the Development 



of the Mineral Industries, 506, 568: The Production of 



Metallic Zinc, 361 ; The World-position in Relation to 



Coal, 633 

 Reed (H. S.), The Dynamics of a Fluctuating Growth-rate, 



222 

 Rees (J. P.), appointed Lecturer in Metal Mining in Bir- 

 mingham University, 90 

 Regan (C. Tate), appointed Keeper of Zoology at the 



Natural History Museum, South Kensington, 51 

 Rehberger (Dr. G. E.), Lippincott's Quick Reference Book 



for Medicine and Surgery, 484 

 Reicherbach (H.), Relativitatstheorie und Erkenntnis 



Apriori, 583 

 Reid (Mrs. Eleanor Mary), Two Pre-glacial Floras from 



beneath the Boulder Clay of Castle Eden, 501 



Reid (Sir G. Archdall), Biological Terminology, 265, 425, 

 680 ; Prevention of Venereal Disease, 195 ; The Natural 

 _ History of Man, 808 

 Reinecke (L.), Mineral Deposits between Lillooet and Prince 



George, British Columbia, 794 

 Reinheimer (H.), Symbiosis : A Socio-physiological Study of 



Evolution, 35 

 Reinmuth (Herr), A Plate of Reid's Comet, 373 

 Reinold (Prof. A. W.), [jdeath], 242 ; [obituary article], 276 

 Remy (P.), The Action of the Vapours of Chloropicrin on 



Argas reflexus, 640 

 Renard (Lt.-Col.), The Evolution of Aeronautics during the 



War, 118 

 Rengade (E.), and J. Clostre, The Estimation of Water in 

 Transformer Oils, 799 ; and E. Desvignes, An Arrange- 

 ment for Testing the Hardness of Refractory Materials 

 at a High Temperature, 735 

 Rennie (Dr. J.), and others. Isle of Wight Disease in Hive 



Bees, 283 

 Renshaw (Dr. A.), appointed Lecturer in Pathology in 



Manchester University, 669 

 Richards (E. H.), The Action of Bacteria and Protozoa in 



Conserving the Nitrogen in Sewage, 318 

 Richardson (H.), Foreign Scientific Litei'ature, 458 

 Richardson (J. H.), elected Wrenbut'yi 'Scholar in Political 



Economy, Cambridge University, 830 

 Richardson (N. M.), Picture-hanging Wire, 601 

 Richardson (W. A.), The Micropetrography of the Rock- 

 gypsum of Nottinghamshire, 60^ 

 Richet (C), Mile. E. Bachrach, and^H. Cardot, The Alterna- 

 tions between Tolerance and .'Vnaphylaxy, 639 ; 

 The Phenomena of Anaphylaxy in Micro-organisms, 126 

 Richmond (E. A.), Life-history and Biology of Water- 

 beetles of the Family Hydrophilidae, 150 

 Rideal (E. K.), .Active Molecules in Physical and Chemical 

 Reactions, 446; appointed to the Humphry Owen Jones 

 Lectureship in Physical Chemistry in Cambridge Univer- 

 ^ty, 507 ; The Catalytic Dehydrc^enation of Alcohols, 

 158 ; The Latent Heats of Vaporisation, 126 ; and U. R. 

 Evans, The Problem of the Fuel-cell, 381 

 Rideal (Dr. S.). and A. Walker, Approved Technique of the 



Rideal-Walker Test, 150 

 Rigg (G.), Review of the Zinc Industry at the Close of 



1919, 279 

 Rignano (E.), Psychologic du Raisonnement, 612 

 Riley (H. L.), elected to a Beit Fellowship for Scientific 



Research, 700 

 Rimmer (W. B.), grant to, by the Advisory Council for 

 Scientific and Industrial Research, for Astronomical 

 Work, 467 

 Ritchie (Dr.' J.), appointed Keeper of the Natural History 

 Department of the Royal Scottish Museum,' 245 ; The 

 Walrus in Northern Scotland, 53 

 Rivers (Dr. W. H. R.), Instinct and the Unconscious : A 

 Contribution to a Biological Theory of the Psycho- 

 neuroses, 515 

 Rivett (Dr. A. C. D.), The Applications of Physical .and 



Chemical Science in the Great War, 442 

 Robb (Dr. A. A.), The Absolute Relations of Time and 



Space, 422 

 Roberts (C), appointed Lecturer in Clinical Surgery in Man- 

 chester University, 669 

 Robertson (Prof. J. K.), The Electrodeless Discharge in 

 Sodium Vapour, 269 ; Young's Interference Experiment 

 and the Spectrometer, 457 

 Robertson (Sir Robert), Some War Developments of Ex- 

 plosives, 524 

 Robertson (Dr. R. C), appointed Assistant Lecturer and 

 Demonstrator in Serology and Immunology at the Brad- 

 ford Technical College, 28 

 Robertson (Sir William), Science and the Empire, 3J4 

 Robinson (Dr. H.), appointed to the Moseley Studentship in 

 the University of Manchester, 530 ; resignation, of, or 

 the Senior Lectureship in Physics in Manchester Uni- 

 versity, 475 

 Robinson (Dr. R.), appointed Professor of Chemistry and 

 Director of the Chemical Research Laboratorv in St. 

 Andrews University, 540 

 Rocasolano (A. de G.), The Variations Produced by Stabil- 

 isers in the Catalytic Power of Electroplatinosois, 767 

 Rock (J. F.), The Leguminous Plants of Hawaii, 346 



