• Nature, 

 June 14, 1500 



Index 



Rudski, 113; Apparatus for Determining Heat required to 

 Evaporate Steam from Saturated Salt Solutions, Mr. Trouton, 

 143; the Molecular Potential Function, Dr. G. Bakker, 

 156; Attempt to Reconcile Apparently Opposite Mechanical 

 Properties of the Ether, Lord Kelvin, 166 ; Method for 

 Determining Mean Density of Earth, Al. Gerschun, 192 ; 

 Kleiner Leitfaden der Practischen Physik, Dr. F. Kohl- 

 rausch, 200 ; Handbook of Physics and Chemistry, H. E. 

 Corbin and A. M. Stewart, 221 ; Lehrbuch der Experi- 

 mental Physik, Adolph Wullner, 221 ; Cooling of a Body in 

 Steady Air-blast, H., Prof. Mitchell, 238 ; Discontinuities 

 Produced by Brusque Expansion of Compressed Gases, Paul 

 Vieille, 239 ; Changes in Volume Accompanying Hardening 

 of Hydraulic Cements, H. Le Chatelier, 239 ; Le Phenomene 

 de Zeeman, A. Cotton, 270 ; Vapour Density of Bromine at 

 High Temperatures, E. P. Perman and G. A. S. Atkinson, 



285 ; Geometrical Representation of Relation between Wave- 

 velocity and Group-velocity, Prof. Horace Lamb, F.R.S., 



286 ; Value of Internal Pressure in Equations of Van Waals 

 and Clausius, Daniel Berthelot, 287 ; the Kinetic Theory of 

 Gases, Dr. Oskar Emil Meyer, 289; Prof. G. H. Bryan, 

 289 ; a Treatise on the Kinetic Theory of Gases, S. H. Bur- 

 bury, 2S9 ; Prof. G. H. Bryan, 289 ; Le9ons de Chimie 

 Physique, J. H. van 't HoflF, 294 ; New Formula forOstwald's 

 Dilution Law, Dr. W. D. Bancroft, 303 ; the Co-volume in 

 Characteristic Equation of Fluid, Daniel Berthelot, 311 ; 

 Physico-chemical Studies of Tin, MM. Cohen and Van Eyk, 

 330 ; Contact Electricity, 332 ; Frequency of Transverse 

 Vibrations of Stretched Indiarubber Cord, T. J. Baker, 334 ; 

 Change with Temperature of Coefficient of Absorption of 

 -Gas in Liquid, Prof. Kuenen, 359 ; Specific Heat of Metals, 

 Robert W. Willson, 367 ; Hydrometers, G. Guglielmo, 371, 

 421 ; Conditions of Solitary Wave-propagation, R. W. 

 Gwyther, 383 ; Motion of Particles in Steady Fluid 

 Motion, R. W. Gwyther, 383 ; Surface Tension of some 

 Organic Liquids, Paul Dutoit and Louis Friderich, 383 ; 

 Physical Principles and Moral Precepts, Dr. G. 

 Gore, 389 ; Exercises in Practical Physics, R. A. Gregory 

 and A. T. Simmons, 390; Death of Dr. Hermann 

 Schaffer, 397 ; Freezing Points of Solutions, E. H. Loomis, 

 399 ; Entropy of Radiation, J. Van der Waals, jun., 407 ; 

 to Calculate a Simple Table ©f Logarithms, Dr. Arthur 

 Dufton, 415; Prof. John Perry, F.R.S., 415; Mechanical 

 Methods of Calculating Logarithms, H. C. Pocklington, 469 ; 

 Soap-bubbles, O. Dorge, 432 ; Molecular Susceptibility of 

 Para-magnetic Salts of Iron Group, and of Salts of Rare 

 Earths, O. Liebknecht, 432 ; Molecular Susceptibility of 

 Para-magnetic Salts of Iron Group, A. P. Wills, 432 ; Mole- 

 cular Susceptibility of Salts of Rare Earths, H. du Bois, 432 ; 

 Criticism on Modern Theory of Solutions, E. F. Morris, 435 ; 

 Suggested Source of the Energy of the Becquerel Rays, Dr. 

 Fred. T. Trouton, F.R.S., 443; the Osmotic Pressure 

 Analogy, Prof. Lehfeldt, 453 ; Relative Effusion-rates of 

 Argon, Helium and other Gases, Dr. F. G. Donnan, 457 ; 

 the Distillation of Liquid Air, E. C. C. Baly, 457 ; Uses of 

 Liquid Air for Researches at Low Temperatures, Prof. Ramsay, 

 458 ; Ouvres Scientifiques de L. Lorenz, H. Valentiner, 

 465 ; Death and Obituary Notice of Dr. Thomas Preston, 

 F.R.S.,474; Effects of Strain on Thermo-electric Qualities 

 of Metals, Prof. M. Maclean, 481 ; Surface-tension Experi- 

 ment, C. E. S. Phillips, 481 ; State of Practical Instruction 

 in Physics, Dr. Boris Weinberg, 515 ; Physical Review, 529 ; 

 Relations between Electrolytic Conductivity and Internal 

 Friction of Saline Solutions, P. Massoulier, 531 ; a Text- 

 book of Physics, W. Watson, Prof. Hugh L. Callendar, 

 F.R.S., 557; Heat for Advanced Students, ^Edwin Edser, 

 Prof. Hugh L. Callendar, F.R.S., 557 ; Text-book of 

 Experimental Physics, Eugene Lommel, Prof. Hugh L. 

 Callendar, F.R.S., 557; lectures on some of the Physical 

 Properties of Soil, R. W. Warington, F.R.S., 561 ; Science 

 Couise for Secondary Schools, G. Robb and J. Mirguet, 

 562 ; Viscosity of Dielectric Liquids unaffected by Uniform 

 Electrostatic Field, Dr. G. Pacher and L. Finazzi, 572 ; 

 Determination of Mass of Cubic Decimetre of Water, Dr. 

 C. E. Guillaume, 572 ; Mechanism of Gelation and Stability 

 of Hydrosols, W. B. Ilardy, 599 ; Movements produced in 

 Liquids by Heat Convection, Henri B^nard, 604 ; Size at 

 which Heat Movements Manifested in Matter, Prof. G. F. 

 Fitzgerald, F.R.S., 612; Death of Prof. Silas W. Holman, 

 618 



Physiognomy : Human Nature : its Principles and the Prin- 

 ciples of, 127 



Physiography: Experimental Science (Physiography, Section i.), 

 R. A. Gregory and A. T. Simmons, 77 ; Die hochgebirge 

 derErde, Robert von Lendenfeld, Prof. T.G. Bonney, F. R. S. , 

 219; First Steps in Earth-knowledge, being an Introduction 

 to Physiography, J. A. Harrison, 317 ; Elementary Practical 

 Physiography, J. Thornton, 539 



Physiology : Affinities of Vascular Endothelium, Henri Stassano, 

 24 ; Exercise and Respiration, Dr. A. Foxwell, 39 ; Estima- 

 tion of Alcohol in Blood and Tissues, N. Grehant, 95 ; Alcohol 

 in Blood of Mother and Foetus, Maurice Nicloux, 556 ; 

 Stereo-chemistry and Physiology, Prof. Emil Fischer, 140, 

 Normal Arsenic in Animals, Armand Gautier, 166-7 ; 

 Arsenic in Animals, Armand Gautier, 383 ; Recent Re- 

 searches on Uric Acid, Prof. Emil Fischer, 187 ; Co-existence 

 of Reducing and Oxidising Diastase in Animal Organs, J. 

 Abelous and E. Gerard, 192 ; a New Pathogenic Mucor, 

 MM. Lucet and Constantin, 192 ; Mechanism of Blood- 

 pressure in Ocular Capillaries, W. Nicate, 192 ; Fat and 

 Soap Absorption in Large and Small Intestine, Dr. Ham- 

 burger, 216; Physiology versus Natural Selection: an 

 Unnatural Antithesis, 217 ; the Zymolysis of Tissues, Dr. 

 J. S. McKendrick, 238 ; a New Myograph, Dr. Mahalanobis, 

 238 ; Effect of Electric Discharges on Heart of Mammals, 

 J. L. Prevost and F. Battelli, 239 ; New Theory of Smell, 

 MM. Vaschide and Van Melle, 240 ; Law of Conservation 

 of Energy in Human Organism, Prof. W. O. At water and 

 E. B. Rosa, 258 ; Plastic Activity of Animal Cells, L. 

 Ranvier, 287 ; Ovarian Follicle of Reptiles, Marie Loyez, 

 287; Automatism of Nerve Cells, M. Pompilian, 312; a 

 Crystallised Fibrin, L. Maillard, 336 ; Nature of Propagation 

 of Nervous Impulse, G. Weiss, 336 ; New Method of 

 Measuring Thermal Sensibility, Ed. Toulouse and W. 

 Vaschide, 336 ; Transformation of Nitro-benzene into Aniline 

 by Horse-kidney Ferment, E. Abelous and E. Gerard, 407 ; 

 Les Sucres et leurs principaux Derives, Prof. L. Maquenne, 

 Prof. R. Meldola, F.R.S., 461 ; Sugar as Heat-producer in 

 Fasting Animals, Prof. U. Mosso, 476 ; Work of Spinal 

 Nervous Centres, J. Joteyko, 483 ; concerning Physio- 

 logical Alternation of Kidneys, E. Bardier and H. 

 Frenkel, 483 ; Diminished Digestive Activity of Saliva 

 in Certain Diseases, Dr. W. G. A. Robertson, 531 ; 

 Specific Heat of Blood, H. Bordier, 532 ; Measurement of 

 Taste, Ed. Toulouse and N. Vaschide, 532 ; Transformation 

 of Fat into Glycogen in Organism, Ch. Bouchard and A. 

 Desgrez, 555 ; Microscopic Researches in Glycogen, Part II., 

 Charles Creighton, 586 ; Absorption of Iodides by Human 

 Skin, F. Gallard, 556 ; Vegetable Physiology. See Botany 



Pick (Thos. Pickering), Surgery : a Treatise for Students and 

 Practitioners, 76 



Pickering (Prof, E. C), Ceraski's Second Algol Variable, 454 



Pickering (Prof. W. H.), Search for an Intramercurial Planet, 

 479 



Pierce (G. W.), Application of Ratio-micrometer to Measure- 

 ment of Short Electric Waves, 626 



Pigeon, " Homing" : the Orientation of the, E. de Cyon, 596 



Pigmy Flints in Yorkshire, R. A. Gatty, 282 



Pigott (T. D.), Extirpation of a Species of Humming-bird by 

 Hurricane, 545 



Pirsson (L. V.), Geology of Judith Mountains of Montana, 600 



Pisciculture : Salmon Hatching in Norway, 39 ; European 

 Rivers stocked with American Fry, 39 



Pittman (E. F.), Underground Temperature, 484 



Plague : Climatic Conditions of Plague, B. Latham, 214 ; the 

 Indian Plague and HafTkine's Inoculations, 422 ; Anti-plague 

 Inoculations, 550 ; the " Emerods " of the Bible Bubonic 

 Plague, Drs. F. Tidswell and J. A. Dick, 501 



Planarians, the, W. G. Vanhame, 1 5 



Planchon (Gustave), Death and Obituary Notice of, 618 



Planetary Atmospheres, Escape of Gases from, S. R. Cooke, 

 501 ; Dr. G. Johnstone Stoney, F.R.S., 515 



Planetary Work at the Manora Observatory, 574 



Planets : Secular Perturbations of Venus, Prof. Eric Doolittle, 

 41 ; Occultation of Neptune, 62, 158, 453 ; New Minor Planet 

 (1899 E.Z.), 187; New Minor Planet (1899 E.Y.), 402; 

 Herr Otto Knopf, 283 ; Opposition of Minor Planet (434). 

 Hungaria, 453 ; Search for an Intramercurial Planet, Prof. 

 W. H. Pickering, 479 ; Planets at their Greatest Brilliancy, 

 C. T. Whitmell, 540 



