Nature, 



August 12, I922_ 



Index 



xvu 



Penrose (H. E.). The Trend of Radio-development, 599 

 Perceval (S. G.), Bequest to the Fitzwilliam Museum, 



Cambridge, 697 

 Percivai (Prof. J.). The Wheat Plant : A Monograph, 366 

 Perot (A.), The Measurement of Pressure in the Atmos- 

 phere of the Sun, 599 ; The Variation in the Wave- 

 length of the Telluric Lines, 194 

 Perrett (Dr. W.), The Resonance Theory of Hearing, 176 

 Perrier (G.), The Differences of Altitude of the Stations of 



the Meridian Arc of the Equator, 362 

 Petch (Mr.), Fungi-parasitic on Scale-insects, 154 

 Petersen (Dr. W. P.), Protein Therapy and Non-specific 



. Resistance, 717 

 Petit (A.), The " Awakening " of Arable Earth, 631 

 Petrovitch (Prof. M.), M6canismes communs aux ph6no- 



menes disparates, 739 

 PhiUp (A.), The Calendar: Its History, Structure, and 



Improvement, 203 

 Philhps (E. G.), Pneumatic Conveying, 135 

 Rckering (J. W.), and J. A. Hewitt, The Action of " Pep- 

 tone " on Blood and Immunity thereto, 430 

 Pickering (Prof. W. H.), Changes on the Moon, 690 

 Pickett (F. N.), Gift for a New Medical Research Labora- 

 tory, 789 

 Pictet (A.), and J. H. Ross, The Polymerisation of Laevo- 



glucosane, 667 

 Pidduck (F. B.), The Kinetic Theory of a Special Type of 



Rigid Molecule, 224 

 Pilsbry (Dr. H. A.), Tertiary MoUusca of Santo Domingo, 692 

 Place (J.), A Phenomenon at the Solfatara of Pozzuoli, 



near Naples, 559 

 Planck (Prof. M.), elected a Foreign Member of the Swedish 



Academy of Sciences, 384 ; PhysikaUsche Rundblicke. 



Gesammelte Reden und Aufsatze, 739 

 Planiol (A.), Friction Losses in Internal Combustion 



Motors, 566 

 Plantefol (L.), The Toxicity of Various Nitrophenols for 



Sterigmatocystis nigra, 127 

 Plaskett (Prof.), A Very Massive Star, 791 

 Plimmer (Dr. R. H. A.), Analyses and Energy Values of 



Foods, 608 

 Plotz (H.) Study of the Culture in vitro of the Vaccine 



Virus, 732 

 Poincare (R), Prime Minister of France, 84 

 PoUcard (A.), and Mile. J. Tritchkovitch, The Direct 



Fixation of Fats by the Sebaceous Glands, 800 

 Pollard (Prof. A.), The Mechanical Construction of the 



Microscope from a Historical Point of View, 754 

 Pommereau (H. de), The Reduction of Ethyl Benzoate and 



of some other Benzene Compounds by Sodium and 



Absolute Alcohol, 463 

 Poole (H. E.), High-tension Switchgear, 7 

 Poole (H. H.), Isotopes, 699 ; The Distribution of Activity 



in Radium Therapy under Different Conditions of 



Screening, 225 ; The Distribution of Activity in 



Radium Therapy, 831 

 Porter (Prof. A. W.), The Vapour - pressure of Ternary 



Mixtures, 257 

 Portier (P.), and M. Duval, The Variation of the Osmotic 



Pressure of the Blood of the Freshwater Teleostean 



Fishes under the Influence of the Increased Salinity of 



the Surrounding Water, 800 

 Potts (F. A.), Parasitism and Symbiosis, 643 ; Symbiotic 



Bacteria and Phosphorescence, 814 ; The Food of 



Teredo, the Ship-worm, 290 ; Patents and Chemical 



Research, 338 

 Poulton (Prof. E. B.), elected President of the Association 



of Economic Biologists, 317 ; presented with the Gold 



Medal of the Linnean Society of London, 754 

 Poulton (Dr. E. P.), and Dr. W. W. Payne. Epigastric 



Pain, 123 

 Praeger (Prof. R. L.), Aspects of Plant Life, with Special 



Reference to the British Flora, 513 

 Prain (Sir David), Impending Retirement of, from the 



Directorship of the Royal Botanic Gardens, Kew, 51 

 Pratt-Chadwick (Mara L.), and L. Lamprey, The Alo Man : 



Stories from the Congo, 710 

 Price (Dr. T. S.), and Dr. D. F. Twiss, A Course of Practical 



Organic Chemistry. Third edition, 305 

 Priestley (Prof. J. H.), The Toxic Action of Illuminating 



Gas on Plants, 731 



Priestley (Major R. E.), The Signal Service in the European 



War of 1914 to 1918 (France), 336 

 Pring (Dr. J. N.), The Electric Furnace, 99 

 Pringsheim (Dr. P.). Fluoreszenz und Phosphoreszenz im 



Lichte der neueren Atomtheorie, 739 

 Procopiu (M. St.), An Electro- and Magneto - optical 



Effect in Liquids holding MetalUc Powders in Suspen- 

 . sion, 700 

 Procter (W. C), Foundation of a Visiting Fellowship at 



Princeton University, 254 

 Pruvot (Mme. A.), A New and Remarkable Type of Gym- 



nosome (Loginiopsis), 463 

 Puchner (Prof. H.), Der Torf, 608 

 Punnett (Prof. R. C), Animal Breeding, 57 

 Pye and Co., Catalogue of Scientific Apparatus, 421 



Quincke (Dr. Fr.), appointed Professor of Technical 

 Chemistry at the Technische Hochschule, Hanover. 



798 



Radio SuppUes, a Wireless Telephone Receiving Set, 819 



Raison (C. A.), appointed Part-time Assistant in Anatomy 

 in Birmingham University, 498 



Ramamurty (S. V.), Space and /Ether, 75 



Raman (Prof. C. V.), Anistropy of Molecules, 75 ; Diffrac- 

 tion by Molecular Clusters and the Quantum Structure 

 of Light; 444 ; Einstein's Aberration Experiment, 

 477 ; Molecular Structure of Amorphous Sohds, 138 ; 

 Optical Observation of the Thermal Agitation of the 

 Atoms in Crystals, 42 ; The Colours of Tempered 

 Steel, 105 ; The Radiant Spectrum, 175 



Ramanujam (S. M.), Self-Fertihsation in Mollusca, 593 



Ramsay (the late Sir William), A Memorial Tablet of, to 

 be placed in Westminster Abbey, 85 



Ramsbottom (Mr.), " Californian Bees," 155 



Ranvier (L.), [obituary article], 620 



Rasmussen (K.), translated by A. and R. Kenney, Green- 

 land by the Polar Sea : The Story of the Thule Ex- 

 pedition from Melville Bay to Cape Morris Jesup, 702 



Rathbun (Miss Mary J.), The Brachyuran Crabs collected 

 by the American Museum Congo Expedition, 87 



Ravaz (L.), and G. Verg6, The Germination of the Spores 

 of Vine Mildew, 30 



Raven (Sir Vincent), The Electrification of Railways, 88 



Rayleigh (Lord), A Photographic Spectrum of the Aurora 

 of May 13-15, 1921 ; A Study of the Presence or 

 Absence of Nitrogen Bands in the Auroral Spectrum, 

 698 ; A Study of the Glow of Phosphorous : Periodic 

 Luminosity and Action of Inhibiting Substances, 93 ; 

 The Aurora Line in the Spectrum of the Night Sky, 93 



Raymond (Prof. P. C), "The History of Corals and the 

 ' Limeless Oceans,' "657 



Rayner (E. H.), J. W. T. Walsh, and H. Buckley. The 

 Lighting of Public Buildings, 490 



Reade (W. H. V.), A Criticism of Einstein and his Pro- 

 blem, 770 



Redway (J. W.), Handbook of Meteorology : A Manual for 

 Co-operative Observers and Students. 440 



Redwood (Sir Boverton), Petroleum. Fourth edition. In 

 three volumes, 403 



Reed (W. H.), Gift for a Site of the University College of 

 the South-West of England, 629 



Reese (Dr. C. L.), The Benefits of Research to Corpora- 

 tions, 124 



Reeves (E. A.), Hints to Travellers. Scientific and 

 General. Tenth edition. 2 Vols., 268 



Reeves (F.), The Cement Oilfield, Oklahoma. 489 



Reg (O.), Edited and with an Introduction by W. Gamble. 

 Byepaths of Colour Photography. 547 



Reiche (F.) Die Quantentheorie : ihr Ursprung und ihre 

 Entwicklung, 234 



Reid (Mrs. Eleanor M.). Fossil Buttercups. 136 ; The 

 Hollow Curve as shown by Pliocene Floras, 256 



Reid (Sir G. Archdall), Man, 579 ; Memory, 551 ; Mind, 

 515 ; Some Biological Problems, 307 ; Some Problems 

 in Evolution, 104 



Reid (Miss J. M.), appointed Demonstrator in Zoology in 

 St. Andrews University, 829 



Reid (W.), Discovery of Comet 1922a, 186 



