Index 



Perkin (F. Mollwo), Practical Methods of Electrochemistry, 



5 ; Duty-free Alcohol, 344 

 Perkin (\V. H., jun.). Preparation of Terpenes and Related 



Substances, 23 ; Replacement of Hydroxyl by Bromine, 



166 

 Perkins (R. C. L.), Sugar-parasites, 254 ; Leaf-hoppers 



and their Enemies, 539 

 Perman (E. P.), the Romance of the Nitrogen Atom, 176 

 Perrine (Prof. J, Jupiter's Sixth and Seventh Satellites, 135 

 Perrot (F. Louis), Expansion and Density of some Gases 



at High Temperatures, the Application to the Determin- 

 ation of their Molecular Weights, 168 

 Perry (Prof. John, F.R..S.), Nature and Man, igg 

 Perrv (Prof.), Teaching of Elementary Mechanics, 640 

 Perry-Coste (F. H.), Education in Belgium and Holland, 



221 

 Persei, Magnitudes of Nova, and Nova Geminorum, Prof. 



-A. A. Xijiand, no 

 Perseids, Observations of, Robert Dole, 279 

 Perseids, Observations of August, 640 

 Peterson (Maude Gridley), How to Know Wild Fruits, n 



Guide to Plants when not in Flower by Means of Fruit 



and Leaf, 428 

 Peterson (O. .A.), Dinochoerus hollandi from the Loup- 



Fork Beds of Nebraska, 492 

 Petit (Prof. G.), Tuberculosis of Dogs, 582 

 Petrie (Prof. Flinders), Results Obtained in Egypt by, 228 

 Petronievics (Dr. Branislav), Principien der Metaphysik, 75 

 Pflanzenreich, das, Supp. to October 19, ix 

 Pharmacology of Indaconitine and Bikhaconitine, Dr. J. 



Theodore Cash, F.R.S., and Prof. Wyndham R. 



Dunstan, F.R..S., 551 

 Pharmacy, Standardisation in. Presidential .Address at 



British Pharmaceutical Conference, W. A. H. Naylor, 



Pharmazie, Geschichte der, Hermann Schelenz, 27 



I'hilibert (Dr.), Acid-fast Bacilli, 582 



Philistinism, British .Archaeology and, Worthington G. 

 Smith, 294 



Phillips (Rev. T. E. R.), Eye-estimates of the Transits of 

 Jupiter's Spot, 518 



Philology : Keltic Researches, E. W. B. Nicholson, 145 ; 

 the Literature of the Celts, its History and Romance, 

 Magnus Maclean, 145; Death of Prof. Jules Oppert, 421 ; 

 Obituary Notice of, 432 ; Notes from Karpathos, Mr. 

 Dawkins, 560 ; a Tibetan-English Dictionary with Sans- 

 krit Synonyms, Sarat Chandra Das, Lieut. -Colonel L. A. 

 Waddell, Supp. to October 19, iii 



Philosophy : Naturalistische und Religiose Weltansicht, 

 Rudolf Otto, 77 ; Neue -Abhandlungen iiber den mensch- 

 lichen Verstand, G. W. v. Leibniz, 396 ; Immanuel 

 Kant's Logik, G. B. Jasche, 396; Lazarus der 

 Begriinder der Vblkerpsychologie, Dr. Alfred Leicht, 

 396 ; Death of Prince .Serge Troubetzkoi, 607 



Phisali.x (C), Presence of Poison in the Eggs of the Aiper, 

 240; Presence of Poison in the Eggs of Bees, 336 



Phcebe, Observations of, 330 



Photography : Recent Spectroheliograph Results, Dr. 

 William J. S. Lockyer, 9; the Swingcam Camera Stand. 

 W. Butler, 89 ; the Bruce Telescope Reference Photo- 

 graphs, Prof. Pickering, 89 ; the Practical Photographer, 

 No. 16, Pictorial Composition, No. 17, .Animal Photo- 

 graphy, 54 ; View that Hydrogen Peroxide gives Rise 

 to a Special Radiation Capable of affecting a Photo- 

 graphic Plate, L. Graetz, 109 ; Profs. P]-echt and Otsuki, 

 109; Photographic Reality of the Martian Canals, Mr. 

 Lowell, 135 ; Photographs of the Martian Canals, Mr. 

 Lampland, 302 ; Mr. Lowell, 302 ; the Theory of Photo- 

 graphic Processes, part ii., on the Chemical Dynamics 

 of Development, including the Microscopy of the Image. 

 S. E. Sheppard and C. E. K. Mees, 141 ; the Camera 

 in the Fields, F. C. Snell, 153 ; Photographs in Colour 

 of the Spectrum, Negative by Transmission, G. Lipp- 

 mann, 167; Monochromatic Photographs of the Orion 

 Nebula, Prof. Hartmann, 230 ; the Practical Photo- 

 grapher's .Annual, 1905, 268; the Latent Image, Prof. 

 J. Joly, F.R.S., Address to the Photographic Convention 

 of the United Kingdom, 1905, 308; the Practical Photo- 

 grapher, 341 ; the Gum-bichromate Process, J. Cruwys 

 Richards, 455 ; Properties of Photographic Plates E.xposed 

 to Light, L. H. Winn, 485 ; the Royal Photographic 



Society's Exhibition, 536: the Three-colour Process, 

 " Pinatype," Si7» ^ Focusing Screen for Use in Photo- 

 graphing Ultra-violet Spectra, Prof. W. N. Hartley, 

 F".R.S., 581 



Physical Deterioration, being the Report of Papers and 

 Discussions at the Cambridge Meeting of the British 

 Association, 1904, on the Alleged Physical Deterioration 

 of the People and the Utility of an Anthropometric 

 Survey, 152 



Physical Deterioration, Dr. Dawson Williams, 331 ; Prof. 

 R. J. .Anderson, 331 ; W. D. Spanton, 332 ; Mrs. F. M. 

 Dickinson Berry, 332 ; Influence of Environment on 

 Physical Development, William Hall, 331 



Physical Improvement, National League for, 235 



Physics ; the Rigidity of the Earth's Interior, Rev. .A. 

 Irving, 8 ; Properties of Rotating Bodies, E. W. Rown- 

 tree, 8; the Measurement of Mass, Dr. AV. Hampson, S; 

 Current Theories of the Consolidation of the Earth, Dr. 

 T. J. J. See, 30; Rev. A. Irving, 79; Lomon6soff as a 

 Natural Philosopher, B. N. Menshutkin, 42 ; Permea- 

 bility of Tubes of Fused Silica, M. Berthelot, 47 ; 

 Beitrage zur Physik der freien Atmosphare, 53 ; Death 

 of M. Fernet, 62 ; Death of Prof. Victor Ren^ Muller, 

 62 ; Osmosis through Tubes of Fused Quartz, G. Belloc, 

 72 : Notes and Questions in Physics, Prof. John S. 

 Shearer, 74 ; the Spirit-level as a Seismoscope, G. T. 

 Bennett, 80 ; Researches on the Permeability of Fused 

 Glass A'essels to Gases at High Temperatures, M. 

 Berthelot, 88 ; Electrostatic Rigidity of Gases at High 

 Pressures, Ch. Eug. Guye and H. Guye, 95 ; E.xperi- 

 mental Researches on the Flow of Steam through 

 Nozzles and Orifices, A. Rateau, loi ; the Dynamical 

 Theory of Gases and of Radiation, Lord Rayleigh, O.M., 

 F.R.S., 54; J. H. Jeans, loi ; Determination of the. 

 Specific Heat of Superheated Steam by Throttling, &c., 

 -A. H. Peake, 116; Physical Society, 118, 142, 215, 28b; 

 a Simple Method of Determining the Radiation Con- 

 stant, Dr. A. D. Denning, 118; a Bolometer for the 

 Absolute Measurement of Radiation, Prof. H. L. 

 Callendar, 118; Compressibility of Different Gases below- 

 Atmospheric Pressure, Adrien Jaquerod and Otto 

 Scheuer, 119; Physical Experiments, N. R. Carmichael, 

 126; the Calculation of the Coefficient of Re-combination 

 of the Ions and the Size of the Ions, Prof. Thomson, 

 142 ; Physical Properties of Sodium A'apour, P. A'. Bevan, 

 142 ; Leitfaden der Physik fiir die Oberen Klassen der 

 Realanstalten, Dr. F. Bremer, Dr. Harold .A. Wilson, 

 170; Recueil d'Exp^riences el^mentaires de Physique, 

 Henri Abraham, 172 ; the Pressure of Radiation on a 

 Clear Glass A'ane, Prof. Gordon F. Hull, 198: T. H. 

 Havelock, 269 ; the Hydrometer as a Seismometer, G. T. 

 Bennett, igS ; C. \'. Burton, 269; the "Bubbling" 

 Method and Vapour Pressures, the Earl of Berkeley and 

 E. G. J. Hartley, 222 ; the Constant of Radiation as 

 Calculated from Molecular Data, the Right Hon. Lord 

 Rayleigh, O.M., F.R.S.. 243; .Application of Statistical 

 .Mechanics to the General Dynamics of Matter and Ether, 

 J. H. Jeans, 261 ; die Stellung Gassendis zu Deskartes, 

 Dr. Hermann Schneider, 292 ; a Text-book of Physics 

 Heat, Prof. J. H. Poynting, F.R.S., and Prof. J. J. 

 Thomson, 293 ; a Comparison between Two Theories of 

 Radiation, J. H. Jeans, 293 ; Effect of Membranes in 

 Liquid Chains, M. Chanoz, 312 ; Experimental Researches 

 on the Effect of Membranes in Liquid Chains, .M. 

 Chanoz, 336 ; der Naturwissenschaftliche Unterricht bei 

 uns im Auslande, Dr. Karl T. Fischer, 333 ; Wie sind die 

 physikalischen Schiileriibungen praktisch gestalten? 

 Oberlehrer Hahn, 333 ; on the Thermoelectric 

 Junction as a Means of Determining the Lowest 

 Temperatures, and on Liquid Hydrogen and Air Calori- 

 meters, Sir James Dewar at Royal Society, 332 : Re- 

 searches on Explosives, Sir Andrew Noble, Bart., K.C.B., 

 F.R.S., 358; State of Matter in the Neighbourhood of 

 the Critical Point, Gabriel Bcrtrand and lean Lecarme, 

 360; Death of Dr. T. R. Thal^n, 384; Obituary Notice 

 of, 403 ; Interesting .Application of the Mathematical 

 Theory of Elasticity, Prof. A'ito Volterra, 387 ; Evapor- 

 ation of Musk and Other Substances, John Aitken, 391 ; 

 .Artificial Diamonds, Dr. C. \'. Burton, 397 ; .AtlaV of 

 Emission Spectra of Most of the Elements, Drs. Hagen- 

 back and Konen, 426 ; the Transverse Momentum of an 



