Nature, ] 
June 9, 1904 
Index li 
Ward (Prof. H. Marshall, F.R.S.), on Eriksson’s Myco- 
plasm Hypothesis, 19; on the Teaching of Science in 
Elementary Schools, 21 
Ward (Prof. James), Organisms and Meteorites, 393 
Ward (John J.), Minute Marvels of Nature, 106 
Warner (H. M.), Curious Shadow Effect, 296 
Water Analysis, Bacteriological Methods in 
C. E. A. Winslow and C. P. Nibecker, 232 
Water: Purification of Water Highly Charged with Vege- 
table Matter, with Special Reference to the Effect of 
Aeration, Osbert Chadwick and Bertram Blount, 185 
Water Supply : Question How Far Water Supply of a River 
is Affected by Drainage and Deforestation, F. G. 
Schwarz, 90; a Student’s Handbook on the Conditions 
Governing the Selection of Sources and the Distribution 
of Water, Reginald E. Middleton, 99; Water Supply and 
Irrigation in the United States, 226; on Lead Poisoning 
and Water Supplies, Dr. Houston, 597 
Waterfowl, Among the, Herbert K. Job, O. V. Aplin, 73 
Waterfowl Family, the, L. C. Stanford, L. B. Bishop and 
T. S. Van Dyke, O. V. Aplin, 73 
Waters of Loch Ness, Internal Oscillation in the, E. R. 
Watson, 174 
Watson (E. R.), Internal Oscillation in the Waters of Loch 
Ness, 174 
Watson (Dr. W.), a Quartz-thread Vertical Force Magneto- 
graph, 454; Ammeter for Small Alternating Currents, 551 
Watt (Sir G.), the Pests and Blights of the Tea Plant, 580 
Watteville (C. de), Flame Spectra of the Alkaline Metals, 
353 
Wave-length of the Green Cadmium Line, Ch. Fabry, 543 
Wave-lengths Discovered by Schumann, Preliminary 
Measurement of the Short, Theodore Lyman, 465 
Wave-motion, Model to Illustrate, Prof. L. R. Wilberforce, 
164-5 
Wave-propagation in Isotropic Space of p Dimensions, 
Mathematical Analysis of, T. H. Havelock, 599 
Wawo and Palolo Worms, Dr. R. Horst, 582 
Weather Changes and the Appearance of Scum on Ponds, 
Platanus Orientalis, 7; Dr. Hugh Robert Mill, 7; H. J. 
Glover, 58; W. Ramsden, 104; Prof. Fred. J. Hillig, 
127, 
Weather Fol's Lore and Local Weather Signs, Willis L. 
Moore, 485 
Weather Prediction: Allerlei Methoden das Wetter zu Pro- 
phezeien, Prof. J. M. Pernter, 35 
Webb (Wilfred Mark), Recent Conferences of Science 
Teachers, 282; Eton Nature Study and Observational 
Lessons, 364 
Weber (H.), Encyklopadie der Elementer-Mathematik, 531 
Webster (F. M.), Insects Attacking Corn-stalks, 494 
Wee Tim’rous Beasties, Studies of Animal Life and 
Character, Douglas English, 176 
Weed (Clarence Moores), Nature Biographies, 73 
Weeks (Mr.), North American Geologic Formation Names, 
116 
Wehnelt Interrupter Discharge, 
the, H. W. Morse, 620 
Weights and Measures: the Metric System of, 280; Alex. 
Siemens, 157; Notes on the [listory of the Metrical 
Measures and Weights, Prof. Herbert McLeod, F.R.S., 
425; Up-to-Date Tables for Use Throughout the Empire, 
Weights, Measures, Coinage, Alfred J. Martin, 436 
Weiss (Prof.), Mycorhiza from the Coal-measures, 119 
Wellstein (J.), Encyklopadie der Elementar-Mathematik, 531 
Wendell (Prof.), Variability of the Minor Planet Iris, 305; 
Variability of Minor Planets, 424 
West (R. A.), Explosive Action of Lightning, 31 
West Indies: the Cotton Worm, 112 
Westphalian Collieries, Ankylostomiasis in, Dr. Haldane, 89 
Whale, Corrections in Nomenclature: Orang Outang ; 
Ca’ing, Dr. Henry O. Forbes, 343; Caling Whale, J. A. 
Harvie Brown, 370 
Whalebone, the Price of, 279 
Whaling for 1903, Sealing and, Mr. Southwell, 472 
Wheat, Experiments on, R. H. Biffen, 92 
Wheat Hybrids, Mendel’s Laws and their Application to, 
R. H. Biffen, 454 
Wheeler (G. W.), Friction and its Reduction, 339 
Whetham (W. C. D.), the Present Position of the Theory 
of Electrolysis, 65 
Sanitary, 
Spectra Obtained from 
Whitney (M.), the Chemistry of the Soil as Related to Crop 
Production, 58 
Whittaker (E. T.), on the Expression of the Electro- 
magnetic Field by Means of Two Scalar Potential Func- 
tions, 71 
Whittaker’s Electrical Engineer’s Pocket Bool, 4 
Wiedersheim (Prof. R.), the Senescence of Organs and its 
Influence on Pathological Phenomena, 237 
Wigham (J. T.), Action of Radium on Bacteria, 8r 
Wilberforce (Prof. L. R.), Model to Illustrate Wave-motion, 
164-5 ; Secondary Radiation Produced by Radium Rays, 
198 
Wild Garlic a Cure for Goat-tick, 163 
Wild Nature’s Ways, R. Kearton, 17 
Wildermann (Meyer), New Chronograph, 431 
Willcock (E. C.), Radium and Animals, 55 
Williams (Captain C. E.), Gongylus gongyloides, a Floral 
Mantis, 95 
Williams (J. Lloyd), on the Alternation of Generations in 
the Dictyotaceze and the Cytology of the Asexual Gener- 
ation, 19 
Williams (Stanley), Periodical Changes in the Colours of 
Jupiter’s Belts, 16 
Williams (W. E.), the Longitudinal Stability of Aérial 
Gliders, 406 
Willis (H. G.), Arithmetic, 54 
Willow Canker, Prof. T. Johnson, 287 
Wilson (C. T. R., F.R.S.), Nuclei and Ions, 104 
Wilson (Herbert), Irrigation Engineering, 291 
Wilson (John H.), Variation in Oat Hybrids, 413 
Wilson (M.), Rudiments of Geometry for Junior Classes, 434 
Wilson (Victor T.), Freehand Lettering, being a Treatise 
on Plain Lettering from the Practical Standpoint for Use 
in Engineering Schools and Colleges, 411 
Windsor, N.S.W., Observatory, Mr. Tebbutt’s Report of 
the, 259 
Winlock (Anna), Death and Obituary Notice of, 327 
Winnecke’s Comet, Ephemeris for, 207 
Winslow (C. E. A.), Statistical Data in Favour of Vaccin- 
ation, 206; Bacteriological Methods in Sanitary Water 
Analysis, 232 
Winter Scenes Connected with Lough Neagh, Strange, 
W. S. Smith, 343 
Winter Whitening of Animals, Captain Barrett Hamilton 
at the Royal Irish Academy, 116 
Wintrebert (P.), Regeneration of Limbs in Amphibia not 
Dependent on the Nervous System, 72 
Wireless Telegraphy: Utility of Wireless Telegraphy at 
Sea, 157; ‘‘ Telefunken System,’’ New Method of, W. 
Schloemilch, 257; Onde hertziani e Telegrafo senza Fili, 
Oreste Murani, 460 
Wirtz (Prof.), Wolf’s Variable Star 59, 1903, Cygni, 16 
Wisconsin, Highway Construction in, E. R. Buckley, 510 
Wisconsin, on the Lakes of South-eastern, Prof. N. M. 
Fenneman, 222 
Wislicenus (Walter F.), Astronomischer Jahresbericht, 4 
Wissenschaften, Ostwald’s Klassiker der exakten, 150 
Wolf (Prof. Max), Absorption of Star Light by Comet 
1903 ¢, 114; Comparison-star Photographs for Minor 
Planets, 331; Absorption of Star-light by a Comet’s Tail, 
89 
Wolt's Comet (1884 III.), Elements and Ephemeris for, A. 
Berberich, 620 
Wolf’s Variable Star 59, 1903, Cygni, Prof. Pickering, 16; 
Prof. Wirtz, 16 
Wolfenden (Dr. R. N.), Distribution of Copepoda, 23 
Wolley-Dod (Major), Flowering Plants and Ferns of the 
Cape Peninsula, 136 
Women, the Higher Education of, A. T. Simmons, 186 
Women and Sanitary Science, Ethel Hurlbatt, 465 
Wonderful Works of God, the, J. Polkinghorn, 269 
Wood (Prof. R. W.), New Case of Interference and 
Diffraction, 335 
Woods (R. J.), Strength and Elasticity of Structural Mem- 
bers, 434 i 
Woods (Thomas), Reasons Against the Theory of Evolution, 
221 
Woodward (Dr. A. Smith, F.R.S.), on 
Ptychodus from the Chalk, 407 
Woodward (B. B.), Dreissensia 
Clifton Hampden Deposits, 204 
the Jaws of 
polymorpha found in 
