Nature, "1 

 June 14, 1900 J 



Index 



xliii 



Variable Stars : New Variable Star, 17 ; New Algol Variable 



in Cygnus, 17 ; Light Curve of Ceraski's First Algol Variable, 



355 ; Second New Variable in Cygnus, Madame Ceraski, 



355 ; Ceraski's Second Algol Variable, Prof. E. C. Pickering, 



454 ; New Variable in Cygnus, 501 ; New Variable Star 



in Draco, Dr. T. D. Anderson, 374 ; a Possible Cause 



of the Variability of Stars, Dr. G. Johnstone Stoney, F.R.S., 



443 ; Variable Stars of the Algol Type, H, C. Wilson, 521 ; 



New Variable in Andromeda, Dr. T. D. Anderson, 547 ; 



Elliptic Elements of the Variable Y Cygni, Prof. N. C. Duner, 



574 

 Variation, New Data for the Study of, 316; Certain Laws of, 



Dr. H. lA. Vernon, 577 

 \ariation of Latitude, Prof. Th. Albrecht, 574 

 V'lschide (M.), New Theory of Smell, 240; New Method of 



Measuring Thermal Sensibility, 336 ; New Method of 



Measuring Acuteness of Hearing for Intensity of Sound, 436 ; 



Measurement of Taste, 532 

 Vector Diagrams, Dr. C. Chree, F.R.S., 490 

 Vegetable Physiology. See Botany. 

 ^"eley {V. H. and Lilian J.), the Micro-organism of Faulty 



Rum, 468 

 Velvril, W. F. Reid, 59 

 Venetia, Earthquake in, 450 

 Ventilation, Natural and Artificial Methods of, 6 

 \'enus : Secular Perturbations of Venus, Prof. Eric Doolittle, 



41 ; Rotation Period of, 574 

 \'erneuil (A.), New Method for Extraction of Rubber from 



Landolphia Bark, 360 

 Vernon (Dr. H. M.), Certain Laws of Variation, 577 

 Verrill (Prof.), the Feather-stars of the Bahamas, 16 

 Vertebrates, Origin of Paired Limbs of, J. G. Kerr, 166 

 Veterinary Surgery, a Surgical Operating Table for the Horse, 



J. A. W. Dollar, 588 

 Vibrations of Gun Barrels, C. Cranz, K. R. Koch, 58 

 Vieille (Paul), Discontinuities Produced by Brusque Expansion 



of Compressed Gases, 239 ; Law of Aerial Resistance to 



Projectiles, 359 

 Vignon (Leo), Rapid Method for Determining Carbonic Acid 



in Gaseous Mixtures, 435 

 Vigouroux (E.), Molybdenum Silicide, 239 

 Villard (P.), Chemical Action of Rontgen Rays, 143 ; Discharge 



of Electrified Bodies and Ozone-formation, 311 ; Reflection 



and Reaction of Kathode and Deviable Radium Rays, 604 

 Ville (J.), New Compound of Antipyrin with Mercuric Chloride, 



556 

 Villiers (A. ), Estimation of Ammonia and Nitrogen, 459 

 Vincent (J. H.), Impact, 507 

 Violuric Acid, Use in Calometric Investigations of, Prof. 



Abegg, 402 

 Viscosity of Water near 4^ C, Variations in Coefficient of, Dr. 



G. Pacher, 61 

 Viticulture ; a Caucasian Vine Disease, MM. Prillieux and 



Delacroix, 383 ; Physiological Phenomena of Chlorosis in 



Vine, Georges Curtel, 628 

 Vivisection : Experiments on Animals, Stephen Paget, 512 

 Viziadurg, the Eclipse Expedition at, Sir Norman Lockyer, 



K.C.B., F.R.S., 229, 249 

 Voelcker (Dr. J. A.), the Agricultural Use of Sulphate of 



Copper, 281 

 Volcanoes; the Etna Eruption of July 19, 1899, 185 

 Volumetric Analysis, John B. Coppock, 317 

 Voluntary Enlistment, Racial Aspect of, R. C. T. Evans, 200 

 Vowels, the Acoustic Analysis of the, from the Phonographic 



Record, Prof. Louis Bevier, 467 

 Vries (H. de), Law of Separation of Hybrids, 556 



Waage (P.), Untersuchungen iiber die Chemischen Affinitaten, 



412 

 Waagen (Dr. W.), Death and Obituary Notice of, 545 

 Waals (J. Van der, Jun.), Entropy of Radiation, 407 

 Wager (Harold), On the Phosphorus-containing Elements in' 



Yeast, 66 

 Wake (Richard), the New Education. Manual Training: 



Woodwork, 53 

 Walcott (C. D.), Lower Cambrian Terrane in Atlantic Province, 



500 

 Walden (Prof.), Liquid Sulphur Dioxide as an Ionising 



Solvent, 114 

 Walker (G. W.), Gas Distribution in Electric Field, 481 



Walker (J.), Solid Ammonium Cyanate, 119 ; Campholytic and 



Isolauronolic Acids, 505 

 Walker (J. J., F.R.S.), Obituary Notice of, 618 

 Wallace (Dr. Alfred R., F.R.S.), Is New Zealand a Zoological 



Region ? 273 

 Wallace (Dr. Robert), the African Horse-sickness, 235 

 Wallerant (F.), a Category of Crystalline Groups Escaping 



Optical Investigation, 31^; Non-existence of Hexagonal 



System, 360 

 Walsh (David M. D.), the X-Ray Case Book, for Noting 



Apparatus, Methods and Results, 150 

 War, Balloons in, 83 



War, Electricity in, Prof. John Perry, F.R.S., 541 

 War, Wireless Telegraphy in the, 350 

 Warburton (C. ), a New Attid Spider '{Mantisatta frttctdans), 



579 

 Ward (H. L.), an Aerolite, 190 

 Ward (Prof. H. Marshall, F.R.S.), Recent Work on Onygcia 



equina, a Horn-destroying Fungus, 65 ; on Methods for 



Use in the Culture of Algce, 66 ; the Potency and Prepotency 



of Pollen, 470 

 Ward (Robert De Courcy), Practical Exercises in Elementary 



Meteorology, 560 

 Warington (Robert, F.R.S.), Lectures on Some of the Physical 



Properties of Soil, 561 

 Warren (C. H.), New Minerals from Franklin (New Jersey, 



U.S.A.), 93 

 Warren (Dr. W. H.), Chemistry of Perfumes, 619 

 Wartegg (E. von Hesse), Cina e Giappone, 513 

 Waste, Trade, the Purification of, R. A. Tatton, 281 

 Water : the Theory of Water Finding by the Divining Rod : 



its History, Method, Utility and Practice, B. Tompkins, 



C. V. Boys, F.R.S., i ; Water-sterilisation by Ozone, Dr. 



Weyl, 65 ; Determination of Mass of Cubic Decimetre of 



Water, Dr. C. E. Guillaume, 572 

 Water-gas Industry, the Carburetted, S. Cutler, Jun., 595 

 Water Service Pipes, Electrical Thawing of, 156 

 Waterloo and City Railway, the ; Method of Construction, 



H. H. Dalrymple-Hay, 85 ; Electrical Equipment, B. M, 



Jenkin, 85 

 Watkins (A. O.), Formation of Dendrites, 311 

 Watson (Thos. J.), the Bacteriology of the Soil, 515 

 Watson (W.), Experiments with Lecher's Wehnelt Interrupter, 



22, ; a Text-book of Physics, 557 

 Wave-propagation, Conditions of Solitary, R. W. Gwyther, 383 

 Wear in Tunnels of Steel Rails, Thomas Andrews, F.R.S., 595 

 Weasel, Colour Phases of, Mr. Barrett-Hamilton, 451 

 Weather : the Effect of, on Every-day Life, Edwin Grant 



Dexter, 56 ; Compensation in Weather, Alex. B, MacDowall, 



295 ; Drunkenness and the Weather, Prof. Edwin G. Dexter, 



365 ; R. C. T. Evans, 469 

 Webb (Sydney), the Effects of Lightning upon Electric Lamps, 



343 

 Wedekind (Edgar), Zur Stereochemie des funfwertigen Stick- 



stoffes mit besonderer Beriichsichtigung des asymmetrichen 



Stickstoffes in der aromatischen Reihe, 199 

 Wees (W. H.), Geology of Judith Mountains of Montana, 600 

 Weights and Measures, International Committee of, 350 

 Weinberg (Dr. Boris), State of Practical Instruction in Physics, 



515 



Weiss (Prof. F. E.), a Gutta-percha Plant, 7; on a Biserial 

 Halonia belonging to the Genus Lepiodophloios, 68 



Weiss (G.), Nature of Propagation of Nervous Impulse, 336 



Welde (Mr.), Can Ants Hear? 157 



Well, Deepest-known Natural, E. A. Martel, 192 



Wellmann (Walter), Arctic Exploration, 17 



Wessel (Herr E.), Definitive Orbit of Comet 1897 III., 374 



West (C. A.), Dissociation Constant of Azoimide, 530 



West Indian Agricultural Conference, the. Prof. J. P. 

 d'Albuquerque, 392 



Wettstein (Dr. R. von), Grundzuge der geographisch-morpho- 

 logischen Methode der Pflanzensystematik, 563 



Weyl (Dr.), Water-sterilisation by Ozone, 65 



Whale Fishery for 1899, the, T. Southwell, 451 



Whale, Rorqual, at Woolwich, 134 



Whales, the Natural History of, F. E. Beddard, F.R.S., 585 



Wharton (Rear-Admiral W. J. L., K.C.B., F.R.S.), Under- 

 currents, 29 



Wheat Problem, the, Sir William Crookes, F.R.S., Sir R. 

 Giff-en, K.C.B., F.R.S., 169 



