Supplement to Natitre,~\ 

 December i, 1892 J 



I fciillott (Captain D.), Curious Case of Malformation in Beak 

 ■ of Indian Parrakeet, 190 

 Vbiiology : Alleged Discovery by Mr, Cyrus Thomas of the 

 F Key to the Central American Inscriptions, 160 ; Fuegan 

 i Languages, T>r. Brinton, 278 

 l*hilosophische Studien, Wundt's, 133 



Phipson (T. L.), Fossil Wood containing Fluoride, 580 



Phosphoroscope for use with the Electric Spark, Lenard's, 

 484, 618 



Photography : Beginner's Guide to Photography, 6 ; Photo- 

 graphy in Colours, 12; Mr. John Carbutt on Results 

 ■achieved by Mr. F. E. Ives in Colour Photography, 13 ; the 

 Photography of Colours, G. Lippmann, 24 ; Colour Photo- 

 graphy, Prof. Vogel's Method, 263 ; Photographic and 

 Visual Magnitudes of Stars, Prof. J. C. Kapteyn, 41 ; Photo- 

 graphs of the Lyra Ring Nebula, Prof Denza, 41 ; Photo- 

 graphs of Flying Bullets, Mr. Boys, 45 ; Photographs of 

 Coral Reefs and Marine Fauna of Great Barrier District of 

 Australia, W. Saville-Kent, 45 ; Photographic Measures of 

 the Pleiades, 161 ; Method of Kxamination of Photographic 

 Objectives at Kew Observatory, Major L. Darwin, 188; the 

 Process of Enlargmg, J. A. Hodges, 210 ; Proposed National 

 Photographic Record Survey, W, J. Harrison, 209 ; Lunar 

 Photography, Dr. L. Weinek, Prof. Holden, 257 ; Dr. 

 Lohse's Photographs of Sun-Spots, 258; Photographic Map 

 of the Heavens, 274; Photographic Chart of the Heavens, 

 H. C. Russell, 576 ; Refraction in Micrometric and Photo- 

 graphic Measures, Dr. S. C. Chandler, 401 ; Photography 

 and Surveying, Colonel Tanner, 407 ; Determination of 

 Longitude by Photography, Dr. H. Schlichter, 407 ; Photo- 

 graphic Magnitudes of Nova Aurigse, J. M Schaeberle, 423 ; 

 Photography of Spectra in Natural Colours, H. Krone, 449 ; 

 Photographs of Solar Phenomena, Prof. G. E. Hale, 452 ; 

 Solar Photography, Prof. G. E. Hale, 455 ; Traiie Encycio- 

 pedique de Photographic, Charles Fahre, 464; Minor Planets 

 Discovered by Photography, 576 ; Discovery of Three New 

 Planets by Photography, 619 ; Mr. J Gaultier's System of 

 Photographic Surveying, 525 ; Photographic Dry Plates, 588; 

 Researches in Stellar Parallax by the Aid of Photography, 

 Prof. Charles Pritchard, F.R.S., 612 



Photometric Observations of the Sun and Sky, William Bren- 

 nand, 284 



Phycological Memoirs, 7$ 



Physics : On a decisive Test-Case disproving the Maxwell- 



Bolizniann Doctrine respecting distribution of Kinetic 



Energy, 21 ; Physical Society, 23, 93, 164, 214, 236, 263 ; 



on a Proposition in the Kinetic Theory of Gases, Rev. H. 



W. Watson, F.R.S., 29 ; Waterston's Theory of Gases, 30; 



a Manual of Physics, William Peddie, 52 ; a Question in 



Physics, Prof. H. A. Hazen, 55 ; Radiation of Atmospheric 



Air, C. C. Hutchins, 6 7 ; Atmospheric Radiation of Heat 



and its Importance in Meteorology, Prof. Cleveland Abbe, 



67 ; the Cause of the Absence of Hydrogen from the Earth's 



Atmosphere and of Water and Air from the Moon, Dr. G. J. 



i Sfoney, F.R.S., 71 ; Mathematics used in Physics, Victor 



I Von Lange, 73 ; Lord Kelvin's Test-Case on the Maxwell- 



K Boltzmann Law, Edw. B. Culverwell, 76 ; on some Pheno- 



wL niena connected with Cloudy Condensation, J^ hn Aitken, 



■ F.R.S., 90 ; the Potential of an Anchor Ring, F. W. Liyson, 

 I 92 ; Study of Physical and Chemical Phenomena under 

 V Influence of very Low Temperatures, Raoul Pictet, 144; a 



■ means of bringing Two Nonmiscible Liquids into Intimate 

 Contact in definite proportions, Paul Marix, 144 ; Historical 

 Summary of our Knowledge of the Connection between Ether 

 and Matter, Prof. O. J. Lodge, F.R S., 164 ; the Hypothesis 

 of a Liquid Condition of the Earth's Interior considered in 

 connection with Darwin's theory of the Genesis of the Moon, 



Osmond Fisher, 166; Prof. Ntesen's Researches on motion 

 of J .oose Disks on Axis Rotating at High Speeds, 168 ; Relation 

 of D mensions of Physical Quantities to Directions in Space, 

 W. Williams, 237 ; Variations in Temperatures of VVater 

 suddenly compressed to 500 atmospheres between 0° and 10°, 

 Paul Galopin, 240 ; Elements of Physic, C. E. Fessenden, 

 245 ; Experiments at the Eiffel Tower on Falling Bodies and 

 Air- Resistance, L. Cailletet and E. Colarteau, 2'^2 ; the 

 Laws of Motion, part ii.. Prof. Tait, 262 ; Nature of 

 Rotation of Knife-Edge of Pendulum on its plane of suspen- 

 sion, G. Dt-fforges, 263 ; Experiments on the Measurement 

 High Temperatures, Dr. Wien, 263 ; a Treatise on 

 hysical Optics, A. B. Basset, F.R.S., Arthur Schuster, 



Inaex 



267 ; Basset's Physical Optics, A. B. Basset, 315 ; Determin- 

 ation of Density of Gases, H. Moissan and H. Gautier, 

 288 ; Measurement of Absolute Intensity of Gravity at 

 Breteuil, G. Defforges, 288 ; Change of Heat Conductivity 

 on passing isothermally from Solid to Liquid, C. Barus, 310 ; 

 Opening Address in Section A of the British Association by 

 Prof. Arthur Schuster, F.R.S., 323 ; Employment of Calori- 

 metric Shell, M. Berthelot, 339 ; Velocity of propagation of 

 Electromagnetic Undulations in Insulating Media, R. Blond- 

 lot, 340 ; Physics at the British Association, 382 ; Opening 

 Address in Section A, by Prof. Arthur Schuster, F. R.S., at 

 the British Association, 323 ; Discussion on a National 

 Physical Laboratory, Prof. Oliver J. Lodge, F. R. S., 382; 

 R. T. Glazebrook, F.R.S., Prof. Fitzgerald, F.R.S.,' 

 383 ; Discussion on Nomenclature of Units, 383 ; Report on 

 Underground Temperature, 383 ; Report on the Discharge of 

 Electricity from Points, 383 ; Report on Electrical Standards, 

 383 ; Wire Standards of Electric Resistance, Dr. Lindeck, 

 383 ; Dr. Kahle on the Clark Cell, 383 ; Preliminary Account 

 of Oceanic Circulation based on the Challenger Observations 

 by Dr. A. Buchan, 383; Physical Condition of the Waters of 

 the English Channel, H. V. Dickson, 384; on Primary and 

 Secondary Cells in which the Electrolyte is a Gas, Prof. 

 Schuster, F.R.S., 384; on Leaky Magnetic Circuits, Dr. du 

 Bois, 384 ; Experiments on the Electric Resistance of Metallic 

 Powders, Dr. Dawson Turner, 384 ; on the Stability of 

 Periodic Motions, Lord Kelvin, F.R.S., 384; on the Specific 

 Conductivity of Thin Films, Profs, Reinold and Riicker, 384 ; 

 a Contribution to the Theory of the Perfect Influence 

 Machines, J. Gray, 384 ; Experiments with a Ruhmkorff Coil, 

 Magnus Maclean and A. Gait, 384 ; the Application of Inter- 

 ference Methods to Spectroscopic Measurement, Prof. A. 

 Michelson, 385 ; on a Periodic Effect which the Size of 

 Bubbles has on their Speed of Ascent in Vertical Tubes con- 

 taining Liquid, Dr. F. T. Trouton, 385 ; on a Method of 

 Determining Thermal Conductivities, C. H. Lees, 385 ; a 

 Magnetic Curve Tracer, Prof. Ewing, 385 ; on a Magnetic 

 Balance and its Practical Use, Prof du Bois, 385 ; on Earth 

 Current Storms in 1892, W. H. Preece, 385 ; on the Di- 

 electric of Condensers, W. H. Preece, 385 ; on Polarizing 

 Gratings, Prof, du Bois, 385 ; the Volume EfTecis of Magnet- 

 ism, Dr. C. G. Knott, 385 ; an Estimate of the Rate of Pro- 

 pagation of Magnetizaiion of Iron, Prof. Fitzgerald, 385 ; 

 Experimental Proof that the Co-efificient of Absorption is not 

 Affected by Density of Illumination, Dr. W. Peddie, 385 ; 

 on Dispersion in Double Refraction due to Electric Stress, 

 Dr. John Kerr, 385 ; on a Delicate Calorimeter, J. A. 

 Harker and P. J. Hartog, 385 ; on Graphic Solutions of 

 Dynamical Problems, Lord Kelvin, 385 ; Reduction of every 

 Problem of Two Freedoms in Conservative Dynamics to the 

 Drawing of Geodetic Lines on a Surface of given Specific 

 Curvature, Lord Kelvin, 386 ; Application of Measurement 

 of Density to Determination of Atomic Weight of Oxygen, 

 A. Leduc, 387 ; Scientific Measuring Instruments, General 

 Ferrero, 388 ; Propagation of Magnetic Impulses along a Bar 

 of Iron, V. A. Julius, 392 ; on the Relative Contamination 

 of the Water- Surface by Equal Quantities of Different Sub- 

 stances, Miss Agnes Pockels, 418 ; Investigation of the 

 Phenomena which accompany the Burning of Carbon and 

 Phosphorus in Oxygen, H. Brereton Baker, 431 ; Observa- 

 tions as to the Physical Deviations from the Normal, as seen 

 among 50,000 children. Dr. Francis Warner, 433 ; Heat of 

 Combustion of some Chlorine Compounds, MM. Berthelot 

 and Matignon, 436 ; Trattato di FisicoChimica secondo la 

 Teoria Dinamica, Prof, di Mombello, 439 ; Generalization of 

 "Mercator's" Projection performed by Aid of Electrical In- 

 struments, Lord Kelvin, F.R.S., 490 ; Aberration Problems, 

 Dr. Oliver J. Lodge, F.R.S., 497; Calorific Distribution of 

 Sun heat at surface of Northern and Southern Hemispheres 

 of Earth, Le G. de Tromelin, 508 ; the Temperature of the 

 Human Body, L. Gumming, 541 ; Measurement of High 

 Temperatures, L. Holboin and W. Wien, 602; Expansion 

 of Gases at Low Piesjures, G. Melandtr, 602; Specific 

 Gravity and Fusion of Ice, J. von Zakrzevski, 602 ; Thermal 

 Radiation in Absolute Measure, Dr. J. T. Bottomley, F.R.S., 

 603 ; a Redetermination of the Mechanical Equivalent of 

 Heat, C. Miculescu, 618 ; Polarization of Light of various 

 Colours by Atmosphere, N. Piltschikoff, 627 

 Physiology : the Temperature of the Brain, 17 ; Dr. J. S. B. 

 Sanderson appointed Waynflete Professor at Oxford, 37 ; 



