XVIil 
Heape (Walter), Fertility of Different Breeds of Sheep, 166 
Heart and Science, 147 
Heat : Thermal Expansion of Pure Nickel and Cobalt, A. E. 
Tatton, 93; Heat of Combination of Pairs of Solid Metals, 
Dr. Alexander Galt, 95; Emission and Absorption of 
Platinum-black and Lamp-black with Increasing Thickness, 
F. Kurlbaum, 117 ; Thermal Properties of Normal Pentane 
(Part 2), Prof. S. Young and Mr. Rose-Innes, 118; Ex- 
pansion of Solids by Heat, Horace Darwin, 149; the 
Thermal Conductivity of Cast Iron, I. T. Osmond, 184; 
Causes of Secular Variation of Temperature at Earth’s Sur- 
face, Prof. Arrhenius, 184; Effect of Sudden Cooling of Red- 
hot End of Iron Bar, Prof. E. Lagrange, 206 ; Thermal In- 
sulators, W. Hempel, 212; Comparison of Platinum and 
Gas Thermometers, Drs. J. A. Harker and P. Chappuis, 
238; Temperature of Maximum Density of Aqueous Solu- 
tions of Alkaline Chlorides, L. C. de Coppet, 240; a Lecture 
©xperiment on the Relative Thermal Conductivities of various 
Metals, Edwin Edser, 244; Relation of Underground Tem- 
perature and Spontaneous Coal-Fires to Oxidation, Dr. Z. S. 
Haldane, F.R.S., and F. G. Meacham, 351 ; Thermogenesis 
and Use of Energy of Manin Raising and Lowering his own 
Weight, A. Chauveau, 360; Variations of Peltier Effect in 
Magnetic Field, A. Pochettino, 400 ; the Sun’s Heat, Prof. 
T. J. J. See, 402; the Gas Thermometer at High Tempera- 
tures, L. Holborn and A. L. Day, 516 ; Temperature Varia- 
tion of Free Air, L. T. de Bort, 576; Heat of Oxidisation of 
Tungsten, MM. Delépine and Hallopeau, 636 
Heating of the Anti-Kathode in X-Ray Work, the, Dr. J. Mac- 
intyre, 101 
Heaviside (Oliver), Electro-magnetic Theory, Vol. ii., 589 
Heckel (Edouard), Anatomical Structure of Vanzlla aphylla, 384 
Heiberg (T.), Oxidation of Furfural by Hydrogen Peroxide, 118 
Heidelberger Schloss und Seine Garten in alter und neuer Zeit 
und der Schlossgarten zu Schwetzingen, Das, H. R. Jung, W. 
Schroder, John Weathers, 52 
Heisse (Herr), the Ignition of Fire-damp by Electricity, 350 
Hele-Shaw (Prof. H. S., F.R.S.), the Motion of a Perfect 
Liquid, 446 
Hélier (H.), Reducing Power of Urine, 264 
Hellmann (Dr. G.), Characteristics of Mild Winters, 66; Neu- 
drucke von Schriften und Karten iiber Meteorologie und 
Erdmagnetismus, 266 
Helmholtz (Hermann von), the Brain of, 61 
Hematite, Magnetic Properties of, A. Abt, 540 
Hempel (W.), Thermal Insulators, 212 
Hempel (Dr.), the Absorption of Nitrogen by Metals, 297 
Hemsalech (G. A.), Spectra of Oscillating Discharges, 360 
Henning (C. L.), the Origin of Religion, 135 
Hepburn (Dr.), Improved Form of Craniometer, 311; New 
Osteometric Board, 408 
Hepites (Dr.), Climatology of Roumanian Black Sea Coast, 
205 
Heredity: a Measure of the Intensity of Hereditary Transmission, 
Francis Galton, F.R.S., 28 ; Inheritance in Parthenogenesis, 
E. Warren, 142; Experimental Investigations in Telegony, 
Prof. J. C. Ewart, F.R.S., 330; Inheritance of Longevity in 
Man, Mary Beeton and Prof. Karl Pearson, F.R.S., 356; 
Variation and Sexual Selection in Man, E. T. Brewster, 401 ; 
the Constant Difference between Normal and Adventitious 
Buds of Trees, C. de Candolle, 550; Heredity and Variation, 
Prof. J. Mark Baldwin, 591 
Hereford Earthquake of December 17, 1896, the, Charles 
Davison, Prof. J. Milne, F.R.S., 194; Relation between 
Hereford Earthquake of 1896 and Geological Structure of 
Bangor-Anglesey District, E. Greenly, 375 
Hergesell (Dr. H.), Results of International Balloon Ascent, 66 
Hergesell (Dr.), Mathematical Investigation of Theoretical 
Vertical Movements of Free Balloon, 400 
Heérissey (H.), the Estimation of Mannose, 384; Production 
of Mannose during Germination of Carob Seed, 636; Com- 
position of Carob Seed Albumen, 408 
Herrick (M.), One Hen’s Egg within Yolk of Another, 158 
Herschel (Prof. A. S., F.R.S.), Triboluminescence, 29 
Hertfordshire Conglomerate, Paleolithic Implement of, Worth- 
ington G. Smith, 390 
Hertz Wave Receiver, a, Rev. F. J. Jervis-Smith, F.R.S., 436 
Hewitt (J. T.), Condensation of Oxalic Acid and Resorcinol, 47 
Heyne (Paul), Practical Dictionary of Electrical Engineering 
and Chemistry in German, English and Spanish, 221 
Index 
Nature, 
December 14, 1899 
Hicks (Dr. J. W.), Bishop of Bloemfontein, Death and Obituary 
Notice of, 595 : 
Higher Education in Paris, A. T. Simmons, 10 
Hildebrandsson (Dr.), Researches on Rainfall, 374 
Hill (A. W.), Lepidodendron Stem from Dalmeny Calciferous 
Sandstone, 239 
Hill (J. B.), Progressive Metamorphism of Dalradian Sediments 
near Loch Awe, 143 
Hillebrand (W. F.), Roscoccelite, 212 
Hillers (W.), Influence of Gaseous Pressure on Electric Cur- 
rents due to Rontgen Rays, 383 
Hillier (J. M.), Les Plantes Utiles du Sénégal, 148 
Hind (Dr. W.), Lamellibranchs from British Carboniferous 
Rocks, 94 
Hipkins (A. J,), the New Philharmonic Musical Pitch, 421 
Hissing of the Electric Arc, the Reason for the, Mrs. W. E. 
Ayrton, 282, 302 
Histoire Abrégée de l Astronomie, Ernest Lebon, 543 
History of Mankind, the, Prof. Friedrich Ratzel, 269 
Hjort (Dr. Johan), Bergens Museum, Report on Norwegian 
Marine Investigations, 1895-97, 313 
Hobbs (W, H.), Spiral Fulgurite from Wisconsin, 383 
Holborn (L.), the Gas Thermometer at High Temperatures, 
16 
melee Comet 1892 ITI. (1899d.), Return of, 63, 161, 232, 281, 
354, 377, 402, 429, 442, 487, 513, 597, 625; H. J. 
Zwiers, 63 
Homotaxy and Contemporaneity, Prof. Zollas, 610 
Hooker (Sir Joseph D., F.R.S.), Reminiscences of Darwin, 187 
Hopkins (Prof.), the Destruction of Spruces and Pines by 
Insects, 427 
Hopwood (H. V.), Living Pictures, 567 
Horizon, Variations of Apparent, F. A. Forel, 360 
Hornby (R. P.), Bird Life in an Arctic Spring, 542 
Horticulture: Die Alpen-Pflanzen in der Gartenkultur der 
Tieflander, Erich Wocke, John Weathers, 6; Death of H. L. 
de Vilmorin, 440; the Destruction of Orange-tree Pests by 
Fumigation, W. J. Allen, 548 
Houdas(M.), the Preparation of Hederine, 192 
Housing of the Offices of the University of London, the, 232 
Houston (Dr. A. C.), Bacteria, 434 
Howard (Dr. L. O.), the Good and Bad Qualities of Insects, 16 
Howe (J. C.), Explosive Effect of Electrical Discharges, 611 
Hughes (Prof. D. E.), Wireless Telegraphy, 35 ; 
Hughes (F.), on the Chemical Effect on Agricultural Soils of 
the Salt Water Flood of November 29, 1897, on the East 
Coast, 609 
Hugot (C.), Action of Sodammonium and Potassammonium on 
Tellurium and Sulphur, 408 ; Action of Potassium-ammonium 
on Arsenic, 636 
Hurricanes in North Atlantic, July, 281 
Hurricane, Severe, at Montserrat, 374 
Hurricane of August 3—September 12, 1899, the West Indian, 
12, 622 
sees (Rev. T. N.), Death of, 60 
Hutchinson (Dr. W.), Zoological Distribution of Tuberculosis, 
21 
Hutton (James), Theory of the Earth, with Proofs and Illus- 
trations, 220 
Huygens (Christiaan), CZuvres completes de, publiées par la 
Société Hollandaise des Sciences, Dr. J. L. E. Dreyer, 457 
Hybridisation, Dr. Maxwell T. Masters, F.R.S., 286 
Hybridisation and Cross-breeding, the International Conference 
on, Wilfred Mark Webb, 305 
Hydro-zrograph, the, F, Napier Denison, 587 
Hydrodynamics, Effect of Vibration on a Level Bubble, A. 
Mallock, 615 
Hydrogen Peroxide and its Action on Photographic Plates, Dr. 
W. J. Russell, V.P.R.S., 208 
Hydrogen Peroxide, Experiments on the Action of, on Carbo- 
hydrates in Presence of Iron Salts, Mr. Morrell, 609; Mr. 
Crofts, 609 
Hydrogen, Solid, Prof. James Dewar, F.R.S., 514 
Hydrography: Changes in the Thames and Medway, III; 
Observations in the Straits of Bab-el-Mandeb with Deep-sea 
Current Meter, 111 ; the Boreat Moncton, Bay of Fundy, W. 
Bell Dawson, 161; Tides of the Gulf and River St. Law- 
rence and Bay of Fundy, Sir J. W. Dawson, F.R.S., 291 ; 
Tides in the Bay of Fundy, W. H. Wheeler, 461 ; Bergens 
Museum, Report on Norwegian Marine Investigations, 1895- 
