XXX 



Index 



TSupplement to Nature, 

 1 June t, 1893 



Persei, the large NeHula near | (N.G.C. 1499), Dr. Scheiner, 



546 

 Perseids, Observations of, 88 



Perthshire Society of Natural Science, Dr. F. B. Waite's Col- 

 lection of Lepidoptera presented to, 206 

 Peru (Southern) Indications of a Rainy Period in, A. E. 



Douglass, 38 

 Petrel, a Fork-tailed, Newman Neave, 31 



Petrie (Prof. W. Flinders), appointed to Chair of Egyptology 

 at University College, London, iii ; First Lecture on 

 Egyptology, 278 ; Ancient Egypt, 301 

 Pflanzeneeben, Anton Kerner von Marilaun, 605 

 Phenological Observations for 1892, Report on the, E. Mawley, 



430 

 Phoenician Tombs at Malta, Depredations among the recently- 

 discovered, 396 

 Philippson (Dr. Alfred), Der Peloponnes ; Versuch einer Lan- 



deskunde auf Geologischer Grundlage, 6 

 Phosphate Beds, The Florida, T. N. Lupton, 325 

 Phosphorescence : a new Luminous Fungus from Tahiti, 157 

 Phosphorescence in Centipedes, R. L Pocock, 545 

 Photography : Traite Encyclopediquede Photographic, Charles 

 Fabre, 6 ; the Photography of an Image by Reflection, 

 Frederick J. Smith, 10 ; Photographic Dry Plates, Arthur 

 E. Brown, 1 1 ; Coloured Photographs of the Spectrum, G. 

 Lippmann, 23 ; American Opinion of Photography in Eng- 

 land, Xanthus Smith, 86 ; a Macual of Photography, A. 

 Brothers, 98 ; Conditions of Production of Lippminn's 

 Coloured Photographs, G. Meslin, 157; the New Teiephoto- 

 graphic Lens, T. R. Dallmeyer, 161 ; on the Photographic 

 Spectra of some of the Brighton Stars, J. Norman Lockyer, 

 F. R.S., 261 ; Photographic Absorption of our Atmosphere, 

 Prof. Schaeberle, 304 ; Eclipse Photography, M. Da la 

 Baume Pluvinel, 326 ; a new Method of Photographing the 

 Corona, M. H. Deslandres, 327 ; Photography first dis- 

 covered by a Dr. Schultz in Halle, 336 ; Dust Photographs, 

 W. T. Thisel ton- Dyer, F.R.S., F. J. Allen, 341; Dust 

 Photographs and Breath Figures, W. B. Croft, 364 ; on the 

 Progress of the Art of Surveying with the aid of Photography 

 in Europe and America, M. A. Lausedat, 384 ; on Electric 

 Soark Photographs, or Photography of Flying Bullets, &c., 

 by the Light of the Elec'ric Spark, C. V. Boys, F.R.S., 

 415, 440; British Journal Photographic Almanac for 1893, 

 462 ; Photographic Reproduction of Gratings and Micro- 

 meters engraved on glass, M. Izarn, 479 ; Photography of 

 certain Phenomena furnished by Combinations of Gratings, 

 M. Izarn, 503 ; Photography of Gratini^s engraved upon 

 Metal, M. Izarn, 623 ; Prof. Hale's Solar Photograph, 498 ; 

 Photographic Properties of Cerium Salts, MM. Auguste and 

 Louis Lumiere, 503 ; Equipotential Lines due to current 

 flowing through Conducting Sheet fixed Photographically, E. 

 Lommel, 544 ; Anthropological Uses of the Camera, 548 ; 

 Photographic Chart of the Heavens, M. Loewy, 589 ; Notes 

 on two Photographs of Lightning taken at Sydney Obser- 

 vatory, December 7, 1892, H. C. Russel, F.R.S., 623 

 Photometer, a Photoptometric, Charles Henry, 24 

 Photometry : on Phosphorescent Sulphide of Zinc considered 



as a Photometric Standard, Charles Henry, 312 

 Photomicrography, the Use of Monochromatic Yellow Light in, 



T. H. Gill, 47 

 Physics: Berlin Physical Society, 24, 312; the Laws of Com- 

 pressibility of Liquids, E. H. Amagat, 48 ; the Temperature 

 of Maximum Density of Mixtures of Alcohol and Water, L. de 

 Coppet, 48 ; Analysis of Complex Odours, Jacques Passy, 48 ; 

 Physical Society, 69, 116, 165, 190, 358, 381, 429, 500, 574 ; 

 Mr. Williams on the Relation of the Dimensions of Physical 

 Quantities to Directions in Space, Prof. Fitzgerald, Mr. 

 MaHan, Prof. Riicker, Prof. Henrici, Dr. Sumpner, 69 ; 

 Williams on the Dimensions of Physical Quantities, Dr. 

 Burton, Prof. A. Lodge, Mr. Boys, W. Baily, Mr. Swinburne, 

 Mr. Williams, 1 16 ; the Determination of the Critical Volume, 

 Dr. Young, 70 ; Mr. Sutherland's paper on the Laws of 

 Molecular Force, Dr. Young, 70 ; Prof. Fitzgerald, Dr. Glad- 

 stone, S H. Burbury, Prof. Ramsay, Macfarlane Gray, Prof. 

 Herschel, 117; Lenticular Liquid Microglobules and their 

 Conditions of Eqviilibrium, C. Maltezis, 71 ; Dilatation of 

 Iron in a Magnetic Fluid, M. Berget, 71 ; Laws of Dilatation 

 of Gases under Constant Pre-^sure, E. H. Amagat, 96; Con- 

 ditions of Equilibrium and Formation of Microglobules, C. 

 Maltezos, 96 ; the Form of Isothermals of Liquids and Gases, 



E. H. Amasrat, 143 ; Interesting Results in Application of 

 Cold, 184 ; Breath Figures, W. B. Croft, 187 ; Method for 

 determining Density of saturated Vapours and Expansion of 

 Liquids at Higher Temperatures, B Galitzine, 189 ; Relation 

 between Velocity of Light and Size of Molecules of Refracting 

 Liquids, P. Joubin, 192 ; Sound and Music, Rev. J. A. Zahm, 

 222 ; Employment of Springs in Measurement of Explosive 

 Pressures, 236 ; the Temperature of the Electric Arc, J. Violle, 

 240 ; Mignetic Properties of Oxygen, P. Curie, 240 ; 

 High Temperatures and Carbon Vaporisation, M. Berthelot, 

 240 ; a Simple Explanation of the Hall Effect, E. 

 Lommel, 254 ; on Thermo-EIectric Phenomena between two 

 Electrolytes, Henri Bagard, 263 ; Pure Gases incapable of 

 producing Electrification by Friction, Mr. Wesendonck, 280 ; 

 on the Temperature Coefticient of the Electrical Resistance 

 of Mercury and on the Mercury Resistance of the Imperial 

 Institution, D. Kreichgauer and W. Jaeger, 286 ; Diffusion 

 of Light by Rough Surfaces, Christian Wiener, 286 ; on the 

 SoluSility-Curvefor Systems oft wo Bod ies,BakhuisRoozeboom, 

 288 ; Physical Education, Frederick Treves, 292 ; the Rate of 

 Explosion in Gases, Prof Harold B. Dixon, 299 ; on a State 

 of Matter characterised by the Mutual Independence of the 

 Pressure and the Specific Volume, P. de Heen, 309 ; the 

 Thermal Conductivities of Liquid-, R. Wachsmith, 350; on 

 a Modification of the Transpiration Method suitable for the 

 Investigation of very Viscous Liquids, C. Brodmann, 357; 

 the Viscosity of Liquids, Prof. J. Perry, F.R.S., 575; 

 Isothermals, Isopiestics, and Isometrics relative to Viscosity, 

 C. Barus, 380 ; Gemeinvers'andliche Vortiage aus dem 

 Gebeite der Physic, Prof. Dr. Leonhard Sohncke, Dr. James 

 L. Howard, 361 ; Uses of Planes and Knife Edges in Pendulums 

 for Gravity Measurements, J. C. Mendenhall, 380 ; the 

 Determination of the Thermal Expansion of Liquids, T. E. 

 Thorpe, 405 ; the Determination of the Thermal Expansion 

 and Specific Volume of certain Paraffins and Paraffin Deriva- 

 tives, T. E. Thorpe and L. M. Jones, 405 ; on Electric Spark 

 PhotographsorPhotography of Flying Bullet-, &c., by the Ligh 

 of the Electric Spark, C. V. Boys, F.R.S., 415, 440; on the 

 Common Cause of Surface Tension and Evaporation of Liquids, 

 G. Van der Mensbrugghe, 428, 621 ; Description of an 

 Instrument to show the small Variations in the Intensity of 

 Gravitation, M. Bouquet de la Grye, 43 1 ; Simple Instrument 

 for measuring Densities of Liquids, A. Handl, 471 ; the Value 

 of the Mechanical Equivalent of Heat, E. H. Griffiths, 476, 

 537 ; the EfTects of Mechanical Stress on the Electrical Resist- 

 ance of Metals, fames PL Gray and James B. Henderson, 478 ^ 

 Photographic Reproduction of Gratings and Micrometers en- 

 graved on Glass, M. Izarn, 479 ; Photography of certain Pheno- 

 mena furnished by Combinations of Gratings, M. Izarn, 503 ; 

 Photographyof Gratings engraved upon Metal, M. Izarn, 623 ; 

 the Specific Heat of Liquid Ammonia, C. Ludekingand J. E. 

 Starr, 499 ; on the Influence of Time upon the Mode of Forma- 

 tion of the Meniscus at the Temperature of Transformation, P. 

 de Heen, 500 ; Experiments on the Influence of Temperature 

 on Electromagnetic Rotation of Light in Iron, Cobalt, and 

 Nickel, Prof. Kundt, 503 ; on the Influence of Temperature 

 upon Circular Ferro- Magnetic Polarisation, Emil Hirsch, 

 525 ; Magnetisation of a radially slit Iron Ring, Heinrich 

 Lehmann, 525 ; on the Stability of a Thin Rod loaded ver- 

 tically, Mr. Love, 526 ; the Resistance of Ice, M. Force, 

 561 ; on the Differential Equation of Electric Flow, T. H. 

 Blakesley, Prof. Perry, Prof. O. J. Lodge, Dr. Sumpner, 

 Mr. Swinburne, 574 ; on Action of Temperature upon the 

 Rotatory Power of Liquids, M. A. Aignan, 576 ; Laws and 

 Properties of Matter, R. T. Glazebrook, F. R.S., 580; the 

 Radiation and Absorption of Heat by Leaves, Alfred Golds- 

 borough Mayer, 596 ; the Absolute Thermal Conductivities of 

 Copper and Iron, R. Wallace Stewart, 599 ; Expansion of 

 Water at Constant Pressure and at Constant Volume, E. H. 

 Amagat, 623 

 Physiography, Elementary, Richard A. Gregory, 74 

 Physiology : Obstacles to Ice-Formation in Animal Body, Herr 

 Kochs, 16; Introduction to Physiological Psychology, Dr. 

 Theodor Ziehen. 28 ; Influence of Bodily Exertion on Diges- 

 tive Process, Herr Rosenberg, 62 ; Further Researches on 

 Nucleinic Acid, Prof. Kossel, 72 ; a Manual of Veterinary 

 Physiology, Veterinary-Captain F. Smith, 76 ; on the 

 Physiology of Grafting, Dr. Hermann Vochting, 128; the 

 Respiratory Centre, Prof. Gad, 144 ; Influence on Respira- 

 tion of Upper Tracts leading fr m Cerebrum to Respiratory 



