Nature, ] 
October 24, 1912 
Oxley (A. E.), Variation of Magnetic Susceptibility with 
Temperature, 208; Detection of Small Amounts of 
Polarisation in Light from a Dull Sky, 313, 669 
Oxner (M.), Memory in Marine Fishes, 79; Experiments 
on Memory in a Fish, Serranus scriba, 131 
Pakes (W. C. C.), Dr. A. T. Nankivell, the Science of 
Hygiene, 604 
Palladin (Prof. W.), Pflanzenphysiologie, 371 
Palmer (Andrew H.), Glazed Frost, 192 
Pariselle (H.), an Unsaturated Alcohol, 104 
Parker (G. W.), Elements of Hydrostatics, 603 
Parkhurst (J. A.), Spectrum of Nova Geminorum No. 2, 329 
Parsons (Sir Charles A., K.C.B.), the Steam Turbine: 
Rede Lecture, 159 
Pascal (P.), Thermal Analysis of Hexachloroethane and its 
Binary Mixtures, 157 
Paton (A. W.), Handbook and Guide 
District, 658 
Patterson (H. S.), R. S. Cripps, and Whytlaw-Gray, Ortho- 
baric Densities and Critical Constants of Xenon, 103 
Patton (Capt. W. S.), Etiology of Kala-Azar, 386 
Peabody (J. E.) and A. E. Hunt, Elementary Plant Biology, 
to Dundee and 
497 
Peach (Dr. B. N.), Report on Rock Specimens dredged by 
the Michael Sars, H.M.S. Triton, and H.M.S. Knight 
Errant, 364 
Peake (Harold), Scheme for Anthropological Survey of the 
British Isles, 173 
Peano (Prof. G.), Definition of.Probability, 431 
Pearson (Dr. J.), Ceylon Pearl Banks, 91 
Pearson (Prof. Karl, F.R.S.), the Grammar of Science, 
188; Tuberculosis, Heredity, and Environment, 426; 
Social Problems: their Treatment, 426; Intensity of 
Natural Selection in Man, 494 
Pearson (R. S.), Commercial Guide to Forest Economic 
Products of India, 539 
Peddie (Prof. W.), Molecular Theory of Magnetism in 
Solids, 53 
Pegg (H. V.), Peat for Power Purposes, 590 
Pélabon (H.), Selenide Batteries, 364 
Peppert (Prof. R.), World’s Supply of Citric Acid, 226 
Pérard (A.), Measurement of small Industrial Standards, 469 
Peringuey (L.), Bushman Sticks decorated in Intaglio and 
Poker-work, 287 
Perkin (Prof. W. H., F.R.S.) and Prof. F. S. Kipping, 
F.R.S., Organic Chemistry, 578 
Perkins (J.), das Pflanzenreich : Monimiacez, 31 
Perkins (Prof. W. H.), Production of Synthetic Rubber, 402 
Perret (L.), Gold and Platinum Alluvial Deposits in Russia, 
337 
Perry (Prof. John, F.R.S.), Forced Vibrations, 424 
Perrycoste (F. H.), Wanted—a Flower Sanctuary, 529, 607 
Petrie (Dr. J. M.), Chemistry of the Doryphora sassafras 
Tree, 391; Hydrocyanic Acid in Plants, 391 
Pettersson (Prof. Otto), Connection between 
graphical and Meteorological Phenomena, 130 
Philips’ Comparative Series of Wall Atlases, 267 
Phillips (Dr. P.), Viscosity of Carbon Dioxide, 363 
Phillips (Rev. T. E. R.), Red Spot on Jupiter, 487 
Phisalix (Mme.), Immunity of Hedgehog towards Poison of 
Lizard, 365 
Piaggio (H.), Sign of the Newtonian Potential, 608 
Picado (C.), Nutrition of Bromeliacez, 53 
Picard (H. K.), Graphic Method of Illustrating Results of 
Extraction Tests, 52 
Pickering (Prof.), Magnitude Observations at Harvard, 486 
Pickering (Spencer, F.R.S.), Effect of Grass on Plants, 399 
Pickering (Prof. W.), Orbits of Comets, 617 
Pidduck (F. B.), Wave-problem of Cauchy and Poisson for 
Finite Depth and slightly Compressible Fluid, 24 
Pinoy (E.), Preservation of Wood, 53 
Pionchon (J.), the Solution of Copper in Water, 157 
Pixell (Miss Helen L. M.), Polycheta from the Pacific 
Coast of N. America, 416 
Planck (Prof.), Address to German Chemical Society, 406 
Platania (Dr. G.), Sea Oscillations on Coast of Sicily, 68; 
Temperature of Flowing Lava, 457 
Plimmer (H. G.), Blood Parasites, 77 
Plummer (H. C.), Motions of Stars, 312 
Hydro- 
/ndex 
Xlll 
Pluvinel (Comte A. de la B.), Kinematography of the 
Solar Eclipse of April 17, 260; Observation of Solar 
Eclipse from a Dirigible, 304 
Pluvinel (A. de la B.) and F. 
1gt1c (Brooks), 335 
Pocock (R. I., F.R.S.), a Rare Stag (Cervus wallichti) from 
Nepal, 207; the Distastefulness of Anosia plexippus, 243 ; 
Local Races of Burchell’s Zebra, 399; Antler Growth in 
the Cervide, 416; Taste or Smell in the Laughing 
Jackass (Dacelo), 425 
Poincaré (Henri), Diffraction of the Hertzian Waves, 131; 
Note on, 246; Mathematical Lectures at the University 
of London, 279; Obituary, 535 
Poincaré (H.), H. Vergne, Lecons sur les Hypothéses 
Cosmogoniques Professées a la Sorbonne, vi 
Pokrowski (Prof.), Observations of Bielid Meteor Shower, 
Baldet, Spectrum of Comet 
42 
Pollok (Dr. J. H.), Vacuum Tube Spectra of some Non- 
metallic Elements and Compounds, 495 
Pope (Prof.) and C. S. Gibson, Resolution of Racemic 
Benzoylalanine, 208 
Pope (Prof.) and J. Read, the Opticaliy Active Hydroxy- 
hydrindamines, 208 
Porter (Dr. Annie), Isle of Wight Bee Disease, 410 
Porter (Prof. A. W.) and Dr. F. W. Edridge Green, 
Negative After-images and Successive Contrast with pure 
Spectral Colours, 494 
Porter (Dr. T. C.), Flicker : III, 234; Clouds and Shadows, 
244, 348 ) 
Post (Prof. J.) and Prof. B. Neumann, Traité complet 
d’analyse chimique appliquée aux essais industriels, 423 
Poulton (Prof. E. B., F.R.S.), Distastefulness of Danatda 
(Anosia) Plexippus, 375; John Viriamu Jones, and other 
Oxford Memories, 419; Address at Second International 
Congress of Entomology, 610 
Poynting (Prof. J. H.), Changes in Dimensions of a Steel 
Wire when Twisted, and Pressure of Distortional Waves 
in Steel, 103 
Pratt (H. Keay), Boiler Draught, 215 
Prichard (H. Hesketh), “Through Trackless Labrador,” 35 
Pring (Dr. J. N.), Laboratory Exercises in Physical 
Chemistry, 291 : 
Prior (Dr. G. T.), Minerals of the El Nakhla el Baharia 
Meteorite, 443 
Pritchard (J. E.), Prof. J. C. Ewart, Discovery of Skull of 
Ancient Type of Horse, 67 
Prunet (A.), the Japanese Chestnut at the Experimental 
Station at Lindois, 25 
Przibram (Dr.), Method for Visualising and Projecting on 
a Screen the Range of a Rays, 543 
Puiseux (M.), Spiral Nebulz, 228 
Punnett (Prof. R. C.), Mendelism, 215; Coat-colour and 
Heredity in Rabbits, 467 
Purvis (J. E.) and G. Walker, Effect of Sewage on Forma- 
tion of Nitrates in Sea-water, 590 
Quain’s Elements of Anatomy, 447 
Quénisset (M.), Observations of Jupiter, 617 
Quidor (A.), New Stereoscopic Microscope with a Single 
Objective, 495 
Quine (Rev. J.), the Isle of Man, 346 
Rabaud (E.), le Transformisme et |’Expérience, 501 
Radais (M.) and A. Sartory, Comparative Toxicity of 
Various Poisonous Fungi, 547 
Radau (H.), Babylonian Expedition of the University of 
Pennsylvania: Cuneiform Texts: Sumerian Hymns and 
Prayers, 60 
“Rainey (Paul J.), Hunting Trip to British East Africa, 
6 
Raby (Sir Wm., K.C.B., F.R.S.), Lecture in Honour of 
H. Moissan at the Chemical Society, 12; Speech at 
British Science Guild, 296; Experiments with Kathode 
Rays, 502 
Ratner (S.), Mobilities of the Radio-active Atom-ions in 
Gases, 677 ee 
Ray (Prof. P. C.), Vapour Density of Ammonium Nitrite, 
616 
