Nature, 1 



Index 



xxxiu 



Toincart; (Prof. H.), Mathematical Work o( Sully Prud- 



homme, 490 

 Polar Expeuitions and Observations, 338 

 Pole, the Motion of the, H. Kimura, 199 

 Pond, the, and other Stories, Carl Ewald, 485 

 Porter CProf. W. T.), Report of the Committee on Ana;s- 



thetics, 507 

 Poschel (Ur. Viktor), die Harte der festen Korper und 



ihre physikalisch-chemische Bedeutung, 463 

 Position Finding without an Horizon, Prof. C. V. Bovs, 



F.R.S., hi; Dr. ."Xlfred Brill, 231 

 Position of Higher Education, the, 113 

 Post (Dr. George E.), Death and Obituary Notice of, 493 

 Potsdam, Publikationen des Astrophysikalischen Observa- 



toriums zu, Doppelsterne, Prof. O. Lohse, 492 

 Poulton (Prof.), Various Criticisms against the Darwinian 



Theory, ib8 

 Pound (V. E.), Some Phenomena Associated with the 



Radiations from Polonium, 471 

 Poynting (Prof. J. H.), Pressure Perpendicular to the Shear 



Planes in Finite Pure Shears, and on the Lengthening 



of Loaded Wires when Twisted, 56 ; Wave Motion of a 



Revolving Shaft and Suggestion as to the .Angular 



Momentum in a Beam of Circularly Polarised Light, 56 ; 



Pressure of Radiation against the Source, 469 

 Praeger (R. L.), a Tourist's Flora of the West of Ireland, 



422 

 Prain (Lieut. -Col. David, CLE., LL.D., F.R.S.), Opening 



.Address in Section K at the Meeting of the British 



Association in Winnipeg, 406 

 Pratt (H. C), Pests of Para Rubber Trees, 462 

 " Prehistoric Horse " of Bishop's Stortford, the. Prof. 



J. C. Ewart, F.R.S., 223 

 Prelini (Prof. C), Graphical Determination of Earlh 



Slopes, Retaining W'alls, and Dams, 393 

 Price-Williams (R.I, Serviceable Life and Cost of Renewals 



of Permanent W'av of British Railways, 437 

 Priest (Irwin G.), New Methol of determining the Focal 



Length of a Converging Lens System, 228 

 Primrose (J. S.), Production of Pure Spelter, 540 

 Procyon and Sirius, the Faint Companions of. Prof.- 



Barnard, 229 

 Prominence Observations, Prof. Ricco, 11 1 

 Prudhomme (Sully), Mathematical Work of. Prof. H. 



Poincard, 496 

 Przibram (Dr. Hans), Experimental-Zoologie, Part ii.. 



Regeneration, 61 

 Psychiatry : Death and Obituary Notice of Prof. C. Lom- 



broso, 494 

 Psvchology : la Naissance de ITntelligence, Dr. Georges 



Bohn, 4; Grosse Manner, Prof. Wilhelm Ostwald, 121; 



a Text-book of Experimental Psychology, Prof. C. S. 



Myers, 123 ; the Economy and Training of Memory, 



Henry J. Watt, 158 ; Imitation in Monkeys, M. E. 



Haggerty, 195, 434; "Muscle Reading," Prof. June 



Downey, 198; Psychologic de I'Enfant et Pedagogie 



expi'rimentale, Dr. Ed. Clapar^de, Prof. J. A. Green, 



214: Hvpnntism. includins a Studv of the Chief Points 



of Psycho-therapeutics and Occultism, Dr. Albert Moll, 



272 ; the Place of Animals in Human Thought, 



Countess Evelyn Martinengo C6saresco, 276 : die 



nmemisclipn Empfindimgen in ihren Beziehungen zu den 



Originalemofindunuen, Prof. Richard Semon. Prof. 



John G. McKendrick, F.R.S., 302 ; das Seelenleben der 



Tiere, Dr. P. Ohm, 394 ; Comment Former un Esprit. 



Dr. Toulouse. 394: .Attention, Prof. W. B. Pillsbury, 4S3 

 Puglisi (Dr. M.), Origin of the White Florentine Iris, 



108 

 Puiseux (P.). Physical Interpretation of Lunar Features, 



i'i8 ; Origin of the Contrasts of Colour in the Moon. 150 

 Pullar (Laurence), Bathymetrical Survey of the Fresh-water 



Lochs of Scotland, i:;:; 

 Purcell (Dr. W. F.l, Development and Origin of the Re- 



sniratory Organs in Aranefe, 462 

 Purification of Water by Storage, Dr. Houston, Prof. R. T. 



Hewlett, 269 

 Pythagoras, das Theorem des, Dr. H. A. Naber, 361 



Ou<*nisset (M.), the Bolide of April 20 as Observed in 

 France, 298 ; Observations of Mars, 355 ; Mars, 498 



Raciborski (Dr. M.), Parasitic and Epiphytic Fungi in- 

 Java, 265 



Radial .Motion in Sun-spot Vapours, Mr. Evershed, 82 



Radiography : Electric Discharge through Vacuum Tubes, 

 Deviable Rays not due to Free Positive Electrons, A. 

 Dufour, 19 ; lonisation Produced by an a Particle, Dr. 

 H. Geiger, 27 ; Diffuse Reflection of a Particles, Dr. H. 

 Geiger and E. Marsden, 27 ; Effects of Incidence oi 

 a. Rays on a Dielectric, Dr. H. Greinacher, 266 ; .Method 

 of Registering the Length of the Path of the a. Rays 

 and on a Peculiarity of this Path, B. Szilard, 209 ;. 

 .Absorption of Homogeneous /3 Rays by Matter, and on 

 the Variation of the Absorption of the Rays with 

 Velocity. W. Wilson, 58; R.adio-activity of Potassium 

 Salts, Emile Henriot and G. Vavon, 90; New Method 

 of Separating Uranium X, B. Szilard, 120; Chemical 

 .-\ction of the Penetrating Rays of Radium on W'ater, 

 .Miroslaw Kernbaum, 120; Influence of the Radium 

 R.adiations on the Chlorophyll and Respiratory Functions 

 of Plants, .-Mexandre Hebert and Andre Kling, 150 ; 

 Ratio between Uranium and Radium in Radio-active 

 Minerals, Mile. Gleditsch, 209 ; Disengagement of the 

 Radium Emanation, H. Herchfinkel, 209 ; Radio-activity 

 and Geology, Prof. J. Joly, F.R.S., 152; Historical 

 Collection of Si.xty-three Rontgen-ray Tubes, Dr. G. H. 

 Rodman, 198 ; Rontgen Rays in the Diagnosis of 

 Disease, 220 ; die Rontgenuntersuchung der Brustorgane 

 und ihre Ergebnisse fiir Physiologic und Pathologie, Dr. 

 Hans .Arnsperger, 222 ; Decomposition of Water by the 

 Ultra-violet Rays, Miroslaw Kernbaum, 209 ; Slight 

 Penetration of the Ultra-violet Rays through Liquids 

 containing Colloidal Substances, J. Courmont and Th. 

 Nogier, 210; Sterilisation by the Ultra-violet Rays, 

 -Application to the Butter Industry, MM. Dornic and 

 Dairc, 210; Decomposition of Carbon Dioxide by the 

 Ultra-violet Rays, H. Herchefinkel, 239 ; la Materia 

 radiante e i raggi magnetici. Prof. A. Righi, 243 ; 

 Radiation of Radio-tellurium, Drs. B. Kucera and B. 

 Masek, 138 ; die Strahlen der positiven Elektrizitat, Prof. 

 E. Gehrcke, 394 ; an Introduction to the Science of 

 Radio-activity, C. W. Raffety, 483 ; Homogeneous Cor- 

 puscular Radiation, Charles A. Sadler, 516 



Raffety (Charles W.). The .-Ether of Space, 127; an In- 

 troduction to the Science of Radio-activity, 485 



Rainfall, British, 1908, Dr. Hugh Robert Mill, 514 



Ram (Francis), Breeding Horses for Use, or Equine 

 Eugenics, 523 



Ramalcy (Prof. F.), Forests of Colorado, 108 ; the Rocky 

 Mountain Flora in Relation to Climate, 337 



Ramsay (Sir William, K.C.B., F.R.S.), Essays, Biograph- 

 ical and Chemical, 122 



Randall-Maclvcr (Dr.), Excavations at the Nubian Ceme- 

 tery at Anibeh, 478 



Rankin (Dr. J. C), an Atlas of Skiagrams, Illustrating the 

 Development of the Teeth, with Explanatory Text. 334 



Rankin (R.), Electrical Laboratory Course for Junior 

 Students, 66 



Rankin (W. Munn), Botanical Surveys, 127 



Rappin (M.), Vaccination of Cattle against Tuberculosis, 



239 

 Rateau (.A.), Experimental Method for .Aerodynamical Re- 

 searches, 29 

 Rateau (Prof.), Fluid Pressure on Inclined Planes, 464 

 R.ivleiah (Lord, O.M., F.R.S.), the Theory of Crookes's 



Radiometer, 69 : to Determine the Refractivity of Gases 



Available only in Minute Quantities, 519 

 Rea (Carleton),' the Botany of Worcestershire, 422 

 Reale Accademia del Lincei .Awards, 352 

 Redgrove (H. Stanley), on the Calculation of Thermochenr- 



ical Constants, 37 

 Reflector, Prof. Lowell's New 40-inch, 229 

 Refractivitv of Gases Available only in Minute Quantities, . 



to Determine the. Lord R.avleigh, O.M., F.R.S., i;i9 

 Regan (C. T.), Colour Changes in Tropical Sea Perches 



from the Bermudas, 119 

 Regeneration. Experimental-Zoologfie, Part ii.. Dr. Hans 



Przibram, Dr. Francis H. .A. Marshall, 61 

 Reichenheim (Dr. O.), on Anode Rays and their Spectra, 



47' 

 Reid (F. R. Cowper). Lower P3lsozoic Hyolithidse from . 



Girvan, 29 



