XVIII 



Index 



Nature, 

 _Febntary to, 



Pearson (E. S.), Variations in Personal Equation, 827 



Pearson (Prof. Karl), Francis Galton, 1 822-1922 : a 

 Centenary Appreciation, 335 ; Health and Weight 

 Probabilities, 22:8 : Tables of the Incomplete Gamma- 

 function, 669 ; and E. S. Pearson, How to find a 

 General Polychoric Coefficient of Correlation, 827 



Pease (R. N.), Atoms and Electrons, 379 



Peddie (Prof. W.), Self Light, Fatigue, Inhibition, and 

 Recurrent Visual Images, 100 



Peel (R.), An Elementary Text-book of Coal-mining. 

 Revised and enlarged by Prof. D. Burns. Twentieth 

 edition, 628 



Peirce (J. D.), The Giant Trees of Victoria, 830 



Penard (E.), Flagellates, 228 



Penfold (A. R.), Some Essential Oils from Leptospermum 

 I.ir, rsidgei, 300 ; The Essential Oil from Backhousia 

 myrtifolia. Part L, 46S ; The Essential Oils of two 

 Myrtaceous Shrubs, Homoranthus virgatus and H. 

 flavi scens, 896; The Essential Oils of two Varieties of 

 Leptospermum flavescens. 750 : The Isolation and 

 Identification of the Acid Bodies produced by the 

 Oxidation of Piperitone by Means of Potassium 

 Permanganate, 236 ; and F. R. Morrison, A New 

 Stearoptene (probably a Phenol Ether) occurring in 

 some Essential Oils of the Myrtaceae, 300 



Penzer (N. M.), The Mineral Resources of Burma, 74 ; 

 The Tin Resources of the British Empire, 5 



Pereira (Gen. Sir George), Journey from Peking to India, 

 852 



Peringuey (Dr.), Bantu Throwing-stones and Brass, 494 



Perkins (H. A.), The Resistance of Thin Electrified 

 Conducting Layers, 436 



Perot (A.), A Rapid Method of determining the Elements 

 of Terrestrial Magnetism, 795 



Perrett (Dr. W.), The Mechanism of the Cochlea, 633 



Perrier (A.) and B. de Mahdrot, The Elasticity and 

 Symmetry of Quartz at High Temperatures, 655 



Perrot (Prof. E.), presented with the Hanbury Medal of 

 the Pharmaceutical Society, 554 



Perucca (E.), The Surface Properties of Mercury : Voltaic 

 Character, Surface Tension, Photo-electric Effect, 623 



Petavel (Capt. J. \\\), Co-operation and the Problem of 

 Unemployment, 298 



Petersen (Dr. C. G. J.), The Fauna of the Sea-bottom, 

 527 



Petrie (Prof. W. M. Flinders), The Green Ray at Sunset 

 and Sunrise, 604 



Petronievics (Dr. B.), Jurassic Birds, 261 



Pexton (S.), awarded a Gas Research Fellowship in Leeds 

 University, 98 



Pezard (A.), The Idea of the " seuil diffe'rentiel " and 

 Humoral Interpretation of the Gvnandromorphism 

 of the Bipartite Birds, 64 ; The Idea of the " seuil 

 diffirentiel" and' Progressive Masculinisation of 

 Certain Female Birds, 290 ; and F. Caridroit, Sex- 

 linked Heredity in the Gallinaceae, 796 



Phisalix (Dr. Marie), Aniniaux venimeux et venins. 

 Tome premier et tome second, 691 : The Hedgehog 

 and Virus of Rabies, 796 



Piaggio (Prof. H. T. H.), Space-time Geodesies, 699 ; 

 Summary of the Theory of Relativity, 432 



Picard (E.), Discours et melanges, 629 



Pick (W. H.), Visibility as a Sign of Coming Rain, 713 



Pickering (Prof. W. H.), Mars, 427 



Pickworth (A.), The Corrosion of Ferrous Metals, 83 



Picon (M.), The Action of Sodammonium on Hexa- 

 methylenetetramine, etc., 686 



Pilling (G. F.), appointed Assistant Lecturer and Demon- 

 strator in Agriculture in Leeds University, 021 



Pippard (Dr. A. J. S.), appointed Professor of Engineering 

 at the University College of South Wales and Mon- 

 mouthshire, 562 



Pittard (Prof. E.), Recent Investigations of the Lake 

 Dwellings of Switzerland, 12 



Planck (Prof. Max), Einfuhrung in die Theorie der 

 Elektrizitat und des Magnetismus. Zum Gebrauch 

 bei Vortragen, sowie zum Selbstunterricht, 474 ; 

 Vorlesungen iiber Thermodynamik. Sechste Auflage, 

 207 ; The Development of German Science, 750 



Plaskett (Dr. J. S.), A Very Massive Star, 364 ; and others, 

 The Radial Velocities of 594 Stars, 95 



Piatt (R.), appointed Demonstrator in Pathology and 

 Bacteriology in Sheffield University, 562 



Plimmer (Violet G.) and Prof. R. H. A. Plimmer, Vitamins 

 and the Choice of Food, 336 



Pogson (W.), The Establishment of the Kodaikanal 

 Observatory, 711 



Pogue (J. E.), The Economics of Petroleum, 474 



Poiree (J.), Precis d'arithmetique, 445 



Poivilliers (M ), A New " Stereo-autograph," 723 



Policard (A.), The Mechanism of Working of the Adipose 

 Cells, 62 -; 



Pollard (Prof. A.), Action of Cutting Tools, 875 



Pollock (Prof. J. A.), [obituary article], 359 



Pons and Remy, The Reddish-brown Coloration shown 

 in March 1922 by the Briancon Snow, 28 



Poole (H. E), Switching and Switchgear, 805 



Poole (Dr. H. H.), a-Particles as Detonators, 148 ; The 

 Detonating Action of a-Particles, 830 



Pope (Amy E.), Pope's Manual of Nursing Procedure, 445 



Pope (Sir William), elected President of the International 

 Union of Pure and Applied Chemistry, 126, 197 



Popesco (J. G.), The Relation between Photo-electric 

 Phenomena and the Surface Tension of Mercury, 

 299 ; The Variation of the Surface Tension of 

 Mercury in Gases, 268 



Porter (Prof. A. W.j, The Green Ray at Sunset and 

 Sunrise, 513 ; and J. J. Hodges, The Law of the 

 Distribution of Particles in Colloidal Suspensions 

 with Special Reference to Perrin's Investigations, 135 



Porter (Dr. E. C), appointed Demonstrator in the Depart- 

 ment of Leather Industries of Leeds University, 621 



Portier (P.) and M. Duval, Osmotic Pressure of the Blood 

 of the " Wiped " Eel as a Function of Modifications 

 of the Salinity of the External Medium, 864 ; Varia- 

 tion of the Osmotic Pressure of the Blood of the 

 Cartilaginous Fishes, etc., 28; The Variation of 

 the Osmotic Pressure of the Blood of the Eel as 

 a Function of Modifications of the Salinity of the 

 External Medium, 332 



Potter (Prof. M. C), Wart Disease of Potatoes, 563 



Potts (F. A.), reappointed Demonstrator of Comparative 

 Anatomy in Cambridge University. 530 



Pouissote and Lautier, Child Sacrifice at Carthage, jjj 



Powell (H. J.), Modern Developments in the Making of 

 Stained and Painted Glass, 687 ; [obituary article], 



74 2 



Powers (W. L.) and T. A. H. Teeter, Land Drainage, 211 



Prescott (F. C), The Poetic Mind, 443 



Preston (F. W.), Comparison of the Structure of Sand- 

 blasted and Ground Glass Surfaces, 591 ; Structure 

 of Abraded Glass Surfaces, 162 



Price (Dr. T. Slater), Gelatin, 286 ; The Desensitising 

 of Silver Bromide-Gelatin Plates, 849 



Priestley (A. H.), appointed Lecturer in Bacteriology in 

 Leeds University, 720 



Priestley (G.), appointed Assistant Lecturer in Cloth 

 Analysis in Leeds University, 720 



Priestley (Prof.) and others, Absorption of Water by 

 Root and Stem Tips, 786 



Priqstley (R. E.), elected a Fellow of Clare College, Cam- 

 bridge, 620 



Prior (Dr. G. T.), The Meteoric Iron of Karee Kloof, etc., 

 757 



Procopiu (S.), The Variations in the Arc Spectrum of 

 Mercury with the Conditions of Emission, 299 



Punnett (Prof. R. C), awarded the Darwin Medal of the 

 Royal Society, 674, 787 ; and P. G. Bailey, Genetic 

 Studies in Rabbits: I., Inheritance of Weight, 463; 

 Inheritance of Weight in Poultry, 463 



Purvis (J. E.) and T. R. Hodgson, The Chemical Examina- 

 tion of Water, Sewage, Foods, and other Substances. 

 Second edition, 571 



Pycraft (W. P.), The Nebraska Tooth, 707 



Quayle (E. T.), Rain-producing Influences in South 



Australia, 586 

 Ouavle (P. P.), Photography of Bullets in Flight, 514 

 Quennell (M. and C. H. B.), Everyday Life in the Old 



Stone Age, 443 



