N.«ure, "I 

 June 14, 1906J 



Index 



313; Wissenschaft und Hypothese, Prof. H. Poincare\ 

 Prof. Arthur Schuster, F.R.S., 313; Fresnel's Theory i 

 of Double Refraction, James Walker, 319; the Thermal 

 Dilatation of Compressed Hydrogen, Prof. A. W. Wit- 

 kowski, 325 ; Atti della Reale Accademia della Scienze 

 Fisiche e Matematiche di Napoli, 327 ; Density of Ice, 

 A. Leduc, 335 ; La Theorie moderne des Ph^nomenes 

 physiques, Radio-activiti, Ions, Electrons, Prof. Augusto 

 Righi, 340 ; Isothermal Distillation of Nitrogen and 

 Oxygen, and of Argon and Oxygen, I. K. Inglis, 357 ; 

 Propagation of Longitudinal Waves of Magnetic Flux 

 along Iron Wires and Rods, Prof. Lyle and Mr. Baldwin, 

 358; Form of Initiational Disturbance more Convenient 

 than that of §§ 3-31 of Previous Papers on Waves, 

 Lord Kelvin, 358 ; Illustrations of the Indefinite Exten- 

 sion and Multiplication of a Group of Two-Dimensional 

 Deep-Sea Waves, Initially Finite, Lord Kelvin, 359; 

 Initiation and Continued Growth of a Train of Two- 

 Dimensional Waves due to the Sudden Commencement 

 of a Stationary Periodically Varying Forcive, Lord 

 Kelvin, 350 ; Lehrbuch der Phvsik, O. D. Chwolson, 

 562 ; Traits de Physique, O. D'. Chwolson, 362 ; Lehr- 

 buch der technischen Phvsik, Prof. Hans Lorenz, 364 ; 

 Secondary Rontgen Rays and Atomic Weight, Dr. 

 Charles G. Barkla, 365 ; Death and Obituary Notice of 

 Prof. A. S. Popow, 371 ; Determination of the Osmotic 

 Pressures of Solutions by the Measurement of their 

 Vapour Pressures, Earl of Berkeley and E. G. J. Hartley, 

 380; Relation between Normal "Take-up" and Degree 

 of Twist in Twisted Threads, T. Oliver, 383 ; Experi- 

 mental Results in Connection wjth Hydrodynamical 

 Theory of Seiches. P. White and W. Watson, 383 ; 

 Atomic Disintegration, Prof. W. Meigen, 389 ; Emis- 

 sion of Light by Kanal-strahlen Normal to their Direc- 

 tion, Dr. J. Stark, 389; Inversion Point of the Joule- 

 Kelvin Effect, Prof. Alfred W. Porter, 390 ; the Rela- 

 tion of Mechanics to Physics, Prof. Alexander Ziwet, 

 403: the Partition of Energy, Prof. W. F. Magie, 404; 

 Apparatus for Separation of Oxygen and Nitrogen bv 

 Liquefaction of Air, Georges Claude, 423 ; Ionisation in 

 Gases from Coloured Flames, Percival Lewis, 424 ; Con- 

 tributions from the Jefferson Physical Laboratory of 

 Harvard University, 427 ; Method of Producing Waves 

 of Frequency Intermediate between Heat Waves and 

 Hertzian Waves, Prof. Reginald A. Fessenden, 428 ; 

 Death and Obituary Notice of Prof. Samuel Pierpont 

 Langley, 443 ; Expansion of a Gas into a Vacuum and 

 the Determination of the Specific Heat at Constant Pres- 

 sure for Gases. G. F. C. Searle. 455 ; Behaviour of 

 Liquid Films Formed from a Solution of Saponin in 

 Water, H. Stansfield, 455 ; a Plea for Absolute Motion, 

 Prof. Arthur Schuster, F.R.S., 462; Norman R. Camp- 

 l "".4 s 4: F. J. W. Whipple, S3 s ; the Existence of Abso- 

 lute Motion, Daniel Comstock, 582 ; the Diffusion of 

 Solids, John H. Howell, 464 ; Some Applications of the 

 Theory of Electric Discharge through Gases to Spectro- 

 scopy, Prof. J. J. Thomson," F.R.S., at Royal Institution, 

 JQ5 ; Production of an Electrically Conductive Glass, 

 Charles E. S. Phillips, 512; the National Physical 

 Laboratory, 514; Les Quantites iSlementaire d 'Electricity : 

 Ions, Electrons, Corpuscles, Dr. O. W. Richardson, 529 ; 

 Spectral Series in Relation to Ions, Dr. J. Stark, 533 ; 

 Gaseous Osmosis through a Colloidal Membrane, Jules 

 Amar, 551 ; the Dynamics of Particles and of Rigid, 

 Elastic, and Fluid Bodies, Prof. Arthur Gordon Webster, 

 555; Physical and Chemical Characters of Huff, 572: 

 Elevation of the Boiling Point of Aqueous Solutions of 

 Electrolytes, Rev. S. M. Johnston, $75 ; the Organised 

 Science Series: ft) First Stage Physiography, 578; 

 Science Handbooks for Laboratory and Class Room : 

 Elementary Physics, John N. Brown, 578 ; Examples in 

 Physics, C. E. Jackson, ^78; Advanced Examples in 

 Physics, A. O. Allen, 578 : Physics, Charles R. Mann 

 and George R. Twiss, 578 ; Diurnal Periodicity of Ionisa- 

 tion of Gases, Alex. Wood, 583 ; Oscillation of Flame 

 Cones, Harold E. Temple, 512; Prof. A. Smithells. 

 F.R.S., 512; Prof. W. Galloway, 584; Observations and 

 Photographs of Black and Grey Soap Film-., Herbert 

 Stansfield, 507 ; Vapour Pressure of a Pure Liquid at 

 Constant Temperature, Prof. Sydney Young, 599 ; 

 Zwolf Vorlesungen iiber die Natur des Lichtes, Dr. J. 



Classen, 606; Diurnal Variation of Ionisation in Closed 

 Vessels, Dr. O. W. Richardson, 007 ; Death and Obituary 

 Notice of Prof. Pierre Curie, 012 ; Landolt-Bdrnstein — 

 Physikalisch-chemische Tabellen, Drs. Bdmstein and 

 Meyerhoffer, Dr. J. A. Harker, Supp. to November 30, vi 



Physiography : the Organised Science Series, (1) First 

 Stage Physiography, 578 



Physiology : Terminology in Electro-physiology, Dr. David 

 Eraser Harris, 5; Prof. J. S. MacDonald, 28; Dr. A. D. 

 Waller, F.R.S., 78; Dr. George J. Burch, F.R.S., 78; 

 Influence of High Altitudes on the General Nutrition, 

 H. Guillemard and R. Moog, 120; Death and Obituary 

 Notice of Prof. Iwan Michaelowitsch Ssetschenoff, 133 ; 

 Text-book of Hygiene based on Physiology for the Use 

 of School Teachers, A. Watt Smyth, 170 ; Crystallised 

 ll.cmatin, MM. Piettre and Vila, 192 ; Studies in General 

 Physiology, Jacques Loeb, 195 ; the Biometrics of Brain- 

 Weights, 200 ; the Temperature of the Monkey, Drs. 

 Sutherland Simpson and J. J. Galbraith, 216; Effects 

 of Varying Diets upon Growth and Nutrition, Dr. 

 Chalmers Watson, 239 ; Physiologie de la Lecture et de 

 l'Ecriture, Emile Javal, J. Herbert Parsons, 268; Hand- 

 book of Physiology for Students and Practitioners of 

 Medicine, Dr. Austin Flint, Prof. J. S. Macdonald, 269 ; 

 a Respiration Calorimeter with Appliances for the Direct 

 Determination of Oxygen, Profs. W. O. Atwater and 

 F. G. Benedict, 276 ; Chlorides in Nerve Cells and 

 Fibres, Prof. A. B. Macallum and Miss M. L. Menten, 

 311; Physiological Economy in Nutrition, 328; Action of 

 Sulphate of Hordenine on the Circulation, L. Camus, 

 336; Respiration of Salamanders, Miss Seelye, 348; 

 Influence of Thymus Feeding on Allantoin Excretion, Dr. 

 J. Maclachlan, 358; Physiological Conditions of Oral 

 Teaching, Pierre Bonnier, 359 ; Anti-Coagulating Power 

 of the Blood Serum of the Lower Animals, J. Sellier, 

 408 ; Histology and Physiology of the Placenta in the 

 Ungulata, Dr. J. W. Jenkinson, 430; Articulation of the 

 Vertebrate Jaw, H. G. F. Spurrell, 430 ; Chemical Con- 

 stitution of Protoplasm as Shown by the Rate of Tissue 

 Disintegration, Dr. H. M. Vernon, 454 ; Recuperative 

 Effects of Raw Meat after Fasting, Charles Richet, 456 ; 

 Protective Mechanism against Excess of Alkali, Drs. 

 Edie and Whitley, 474 ; Physiological Properties of West 

 Indian Boxwood, Harvey Gibson, 474; Outlines of 

 Physiological Chemistry, Dr. S. P. Beebe and Prof. 

 B. H. Buxton, Prof. Benjamin Moore, 483 ; Sound and 

 Rhythm, W. Edmunds, Prof. John G. McKendrick, 

 F.R.S., 483; Effects of the Absorption of Tuberculin by 

 the Digestive Tube, A. Calmette and M. Breton, 503 ; 

 the Reaction of the Blood a Function of Nutrition, Jean 

 Gautrelet, 504 ; Hohenklima und Bergwanderungen in 

 ihrerwirkung auf den Menschen, N. Zuntz, A. Loewy, 

 F. Muller, and W. Caspari, 553 ; Influence of Increased 

 Barometric Pressure on Man, Leonard Hill, F.R.S., and 

 M. Greenwood, 598 ; Physiologie des Menschen, Dr. L. 

 Luciani, Dr. J. A. Milroy, 606; the Intestinal Tract of 

 Mammals, Dr. Chalmers Mitchell, 61S; Specificity and 

 Action in vitro of Gastrotoxin, Dr. Charles Bolton, 622 ; 

 Plant Physiology : Studien iiber die Regeneration, Prof. 

 B. Nernec, 170 ; Present-Day Problems of Plant Physi- 

 ology, Prof. B. M. Duggar, 253 ; British Flowering 

 Plants, the Right Hon. Lord Avebury, 604 ; see also 

 British Association 



Pickard (R. H.), Resolution of a-Phenyl-a'-4-hydroxy- 

 phenylethane by I-menthylcarbimide, 479 



Pickering (Prof. E. O), Nebulosity around Nova Aquilae, 

 279 ; Measurements of Linne during the Total Eclipse of 

 the Moon, 569 



Pickering (Prof. W. H.1, Martian Meteorology, 3,8 ; Phcebe, 

 the Ninth Satellite of Saturn, 63 ; the Tenth Satellite of 

 Saturn, S7 



Pickering (Prof.), Harvard College Observatory, 494 ; the 

 Observation of Long-Period Variables, 592 ; a Systematic 

 Study of Faint Stars, 545 ; Stars having Peculiar Spectra, 



545 

 Pickering in Yorkshire, the Evolution of an English Town, 

 being the Story of the Ancient Town of, Gordon Home, 



538 

 Picton (N.), Influence of Substituents in the Trinitroben- 

 zene Molecule on the Formation of Additive Compounds 

 with Arylamines, 551 



