Index 



r Nature 



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Pictorial Annual, Penrose's, 269 



Pictures from Nature, Richard and Cherry Kearton, 148 



Pieron (H.), the Seat of the Recognition-Sense among 



Ants, 134 

 Pierpont (J.), Lectures on the Theory of Functions of Real 



Variables, 483 

 Piettre (M.), Crystallised Haematin, 192 

 Pirsson (L. V.), Petrography and Geology of the Igneous 



Rocks of the Highwood Mountains, Montana, 376 

 Plague Epidemic, the Immunity of Europeans, 422 

 Plague in India, the Serum Therapy of, W. M. Haffkine, 



Prof. R. T. Hewlett, 368 

 Planets: Observations of Jupiter's Sixth Satellite, 18; 

 Photographs of Jupiter's Sixth and Seventh Satellites, 

 182 ; Systematic Error in Transit Observations of 

 Jovian Spots, Stanley Williams, 38 ; Observations of 

 Jupiter, Major Molesworth, 401 ; New Spot on Jupiter, 

 W. F. Denning, 584, 607; Variability of the Asteroid (444) 

 Gyptis, Dr. W. Valentiner, 39 ; Phoebe, the Ninth Satel- 

 lite of Saturn, Prof. W. H. Pickering, 63 ; Observations 

 of Phcelx- during 1905, 474 ; the Tenth Satellite of Saturn, 

 Prof. W. H. Pickering, 87; Suggested Name for Nep- 

 tune's Satellite, M. Fouche, 182; Variability of Iris, Dr. 

 H. Clemens, 279 



Planisphere, Philips 's Large, H. Gewecke, 269 



Plant Physiology : Studien uber die Regeneration, Prof. B. 

 Ngmec, 170; Present-Day Problems of Plant Physiology, 

 Prof. B. M. Duggar, 253 ; British Flowering Plants, the 

 Right Hon. Lord Avebury, 604 



Plants : the Origin of Variations in Animals and Plants, 

 Prof. T. D. A. Cockerell, 197 ; New Creations in Plant 

 Life : an Authoritative Account of the Life and Work of 

 Luther Burbank, W. S. Harwood, 242 ; the Uses of 

 British Plants, Rev. Prof. G. Henslow, 270 ; Minnesota 

 Plant Disease, Dr. E. M. Freeman, 291 ; Organography 

 of Plants, Dr. K. Goebel, 412 ; the Utilisation of Nitrogen 

 in Air by Plants, T. Jamieson, 531, (107; A. D. H., 608; 

 Microscopic Aquatic Plants of our Waters, Dr. F. E. 

 Fritsch, at London Institution, 499 



Platania (Prof.), Currents in the Straits of Messina, 621 



Pleiades Stars, Catalogue of, Dr. R. S. Dugan, 617 



Pocklington (Dr. H. C), Cheirality of Form of Crystals of 

 Epsom Salt, 270 



Pocock (R. I.), on an Alleged New Monkey from the 

 Cameroons, 297 



Pohl (R.), Light Emitted by Radium Bromide due to the 

 Impact of the Becquerel Rays on the Particles of Nitro- 

 gen, 325 



Poincare (Prof. H.), Science and Hypothesis, 313; Wissen- 

 schaft und Hypothese, 313 



Polar Exploration, 356 



Polk (Mary), Scientific Research in the Philippine Islands, 

 a Catalogue of the Library, 57 



Polonium and Radio-Tellurium, 549 



Polytechnics, the Place of, in Education, Sir Norman 

 Lockyer. K.C.B., F.R.S., at Borough Polytechnic Insti- 

 tute, 521 



Poor (Dr. C. L.), the Figure of the Sun, 270 



Popow (Prof. A. S.), Death and Obituary Notice of, 371 



Porlier (A.), Composition of a Cast-iron Cannon Ball 

 found under Old Moat of the Bastille, 1S1 



Porsch (Dr. Otto), Die Spaltoffnungsapparat im Lichte der 

 Phylogenie, Ein Beitrag zur phvlogenetischen Pflanzen- 

 histologie, 436 



Portraits, Request for Prints of Photographic, Dr. Francis 

 Galton, F.R.S., 534 



Porter (J. T.), Selective Reflections, by Various Crystals, 

 in the Infra-Red Spectrum, 182 



Porter _ (Prof. Alfred W.), Inversion Point of the Joule- 

 Kelvin Effect, 390 



Positive Rays, the Spectrum of the (Canal-strahlen), Dr. 

 J. Stark, 79 



Potter (Prof.), Topography of the Thorax and Abdomen, 

 252 



Potter (Prof. M. C), on the Healing of Parenchymatous 

 Tissues in Plants, 164 



Potts (Dr. G.), on the Action of Calcium Compounds on 

 Plasmodiophora Brassicce, 164 



Poulkowa, Photographies de la Granulation Solaire faites 

 a, Prof. A. Hansky, W. E. Rolston, 401 



Praeger (R. L.), Survey of the Vegetation of the District 

 South of Dublin, 303 



Precious Stones considered in their Scientific and Artistic 

 Relations, Prof. A. H. Church, F.R.S., Supp. to Novem- 

 ber 30, x 



Preservation of Antiquities, the, a Handbook for Curators, 

 Dr. Friedrich Rathgen, 412 



Press, Photography for the, 196 



Price (T. S.), Caro's Permonosulphuric Acid, 190 



Prideaux (E. B. R.), the Fluorides of Selenium and Tel- 

 lurium, 71 ; Bromine Fluoride, 71 ; New Compounds of 

 Fluorine, 357 



Priestley (J. H.), Mechanism of Carbon Assimilation in 

 Green Plants, 525 



" Prima Philosophia," an Essay towards the, Carveth Read, 

 290 



Pritzel (E.), Fragmenta Phytographia; Australia? occiden- 

 talis, 149 



Prize Subjects of the Industrial Society of Mulhouse, 164 



Prizes Awarded and Proposed by the Paris Academy of 

 Sciences, 233 



Proceedings of the London Mathematical Society, 52 



Protection of Birds, the, 521 



Proteids, Studies on the Synthesis of Peptides and, Prof. 

 Emil Fischer, 519 



Psychology : Esquisse d'une Theorie biologique du Som- 

 rneil, Dr. Ed. Claparede, 293 ; Comparative Studies in the 

 Psychology of Ants and of Higher Animals, E. Wass- 

 mann, Lord Avebury, F.R.S., 315; an Analysis of 

 Human Motive, F. Carrel, 318; Die Mneme als erhal- 

 tendes im Wechsel des organischen Geschens, Richard 

 Semon, 338; the Senses of the Todas, Dr. W. H. R. 

 Rivers, 517; Influence of Bias and of Personal Equation 

 in Statistics of Ill-defined Qualities, G. Udny Yule, 551 



Public Schools Science, Masters' Conference, Wilfred Mark 

 Webb, 308 



Pulse of the Atmospheric Circulation, the, Dr. W. N. 

 Shaw, F.R.S., 175 



Pumps and Pumping Engines, British Progress in, P. R. 

 Bjbrling, 217 



Purcell (Dr. W. F.), on Some Early Stages in the Develop- 

 ment of Peripatus, 40 



Purvis (J. E.), Influence of Very Strong Electromagnetic 

 Fields on the Spark Spectra of Ruthenium, Rhodium, and 

 Palladium, 71 ; Influence of Very Strong Electromagnetic 

 Fields on the Spark Spectra of (a) Vanadium, (b) Plati- 

 num and Iridium, 527 



Pyro-Soda Developer, Phosphorescence of, T. A. Vaughton, 

 '389 



Quaintance (A. L.), the Cotton Bollworm, 257 

 Quantitative Analysis, Elements of, Dr. G. H. Bailey, 244 

 Quantitative Analysis, First Steps in, J. C. Gregory, 293 

 Quantitative Chemistry, Exercises in, Harmon Northrop 



Morse, 268 

 Quenisset (M.), the Lunar Eclipse of February S, 545 

 Questions for Archaeologists, Some, Sir Norman Lockyer, 



K.C.B., F.R.S., 280 

 Quiet Hours with Nature, Mrs. Brightwen, 4 



Rabes (Dr. O.), Stylophthalmus paradoxus, 4711 



Radial Velocities of Certain Variable Stars, Prof. Frost, 39 



Radio-activitv of Ordinary Matter in Connection with the 



Earth's Internal Heat, Hon. R. J. Strutl, F.R.S., 173 

 Radiography : Radium and other Radio-active Substances, 

 their Application especially to Medicine, Dr. Charles 

 Baskerville, 2 ; Action of Radium on Gelatin Media, John 

 Butler Burke, 5 ; Action of Radium Salts on Gelatin, 

 W. A. Douglas Rudge, 78 ; Light Emitted by Radium 

 Bromide due to the Impact of the Becquerel Rays on the 

 Particles of Nitrogen, D. Himstedt and G. Meyer, 325 ; 

 Prof. B. Walter and R. Pohl, 325 ; Scintillations Pro- 

 duced by the Electronic "/3-Rays" emitted by Radium, 

 C. W. R., 341 ; Influence of the Rays of Radium on the 

 Resistance of Certain Solid and Liquid Dielectrics, Prof. 

 A. Righi, 375 ; Properties of the a Rays emitted by 

 Radium, Henri Becquerel, 407; Effect of High Tempera- 

 tures on Radium Emanation, W. Makower, 407 ; Action 

 of Radium Emanation on Chromogenic Bacteria, Ch. 

 Bouchard and M. Balthazard, 576 ; Certain Radio-active 



