I899J 



Index 



Newton (Prof. Alfred, F.R.S.), the Range of the Garefowl, 125; 



Papa Westray Holm, the Home of the Great Auk, 132 

 Newton (E. T., F.R.S.), Megaiosauroid Jaw from Rhretic 



Beds near Bridgend, Glamorganshire, 262 

 Niagara Falls, Age of. Prof. G. F. Wright, 16 ; the History of, 



J. W. Spencer, 214 

 Nichols (Prof. Edward L. ), the Application of Photography to 



the Manometric Flame, 320 : the Density of Ice, 396 

 Xicholson (Prof. Alleyne), Obituary Notice of, 298 

 Nickel, the Extraction of, from its Ores by the Mond Process, 



Prof. W. C. Roberts-Austen, C.B., F.R.S., 63 

 Nickel, Alloys of Iron and. R. A. Hadfield, 546 

 Niethammer (F. ), Magnetic Hysteresis, 46 

 Nile, the Fishes of the. Dr. John Anderson, F.R.S., 399 

 Nile Valley, Polypterus in, N. R. Harrington and Dr. R. Hunt, 



IS 

 Nine \ears on the Gold Coast, Rev. Dennis Kemp, 193 

 Nitrogen and Nodules of Leguminous Plants, Maria Dawson, 



214 

 Nitsche (Dr. H.), Studien liber Hirsche (Gattung Cervtis in 



weitesten Sinne), 366 

 Noden-Bretonneau Electrical Method of Wood Seasoning, the, 



346 

 Normal Spectra, Conversion of Prismatic into, E. S. King, 330 

 Norman (John Henryl, the World's Exchanges in 189S, 339 

 Norman (P.), Discovery of Site of Flint Flake Workshop in 



Kent, 255 

 North (Mr.), Fan-tailed Cuckoo reared by Rock-Warblers, 143 

 Northern Polytechnic, HoUoway, the, A. T. Simmons, 449 

 Notes from a Diary in Asiatic Turkey, Lord Warkworth, 557 

 Notes from a Diary, kept chiefly in Southern India, Right Hon. 



Sir M. E. Grant Duff, 5S2 

 JVotes on Cage Birds, W. T. Greene, 389 



Notes on Theoretical and Physical Chemistry, J. H. van 't 

 ' Hoff, 557 

 Nova Scotia, Geology of South-Western, Dr. L. W. Bailey, 



283 

 iNovember Meteors, the, 31, 107, 157, Dr. G. Johnstone 

 ' Stoney, F.R.S., 31 ; W. F. Denning, 78 

 Wyasaland, Economic Botany in, 211 



Oasis of Siwah, the, 266 



Obach (Dr. E. F. A.), Death and Obituary Notice of, 254 



Oberbeck (A. ), New Type of Volumenometers, 42S 



pblique Vision, on the Relative Brightness of Pigments by. 



Prof. F. P. Whitman, 45 

 Observations of o Orionis, R. T. A. Innes, 233 

 Observatories : Wolsingham Observatory Circular, 63 ; the 



Companion to the Observatory for 1899, 186 ; the Melbourne 

 I Observatory, 186; the Hamburg Observatory, 303; Harvard 

 I College Observatory, 329 ; Prof. E. C. Pickering, 473 ; 

 I United States Naval Observatory, 398, 546 ; Prof. A. N. 

 I Skinner, 398 ; Lowell Observatory, 449 : a Seismological 



Observatory and its Objects, Prof. John Milne, F.R.S., 487 ; 

 Ocean Bottom and Surface, Temperature of, Sir John Murray, 

 < 575 



Oceantc, the, 277 



Octonions ; a Development of Cliftbrd's Biquaternions, Alex. 

 i McAulay, Prof. W. Burnside, F.R.S., 411 

 |0'Dea (James J.), the New Explicit Algebra in Theory and 



Practice, 25 

 Ogilvie (M. M.), Torsion Structure of Dolomites, 262 



rhio. Preliminary Report of an Investigation of Rivers and 

 Deep Ground Waters of, as Sources of Water Supplies. 316 

 jOhm, Absolute Determination of the, Prof. Reginald A. 

 • Fessenden, 605 

 Oil Fuel, Sir Marcus Samuel, 594 

 Oliver (Dr. Thomas), Causes of Caisson Disease, 376 

 fOnimus (M.), New Apparatus for Measurement of Luminosity, 



47 

 JOnnes (Prof. K.), Open Manometer of Reduced Height, 120 

 Oosting(Dr. H. J.), Contrivances for exhibiting Resultants of 

 \ Two Circular or Elliptic Variations of Different Periods, 614 

 lOptics : Velocity of Light in Magnetic Field, Profs. Morby, 

 j Eddy, and Miller, 45 ; Relative Brightness of Pigments by 

 I Oblique Vision, Prof. F. P. Whitman, 45 ; Geometrical 

 I Method for investigating Dilifraction by Circular Aperture, 

 Prof. A. G. Webster, 45 ; Action of Light on Platinum, Gold 

 and Silver Chlorides, E. Sonstadt, 71 ; Colours of Lakes and 



Seas, Prof. R. Abegg, 80 ; Diffraction Fringes as applied to 

 Micrometric Observations, L. N. G. Filon, 117; Die Optik 

 der lilektrischen Schwingungen, Prof. A. Righi, 148 ; on an 

 Objective of the New Jena Glass, Dr. Max Wolf, 158 ; 

 Anomalous Dispersion and Magnetic Rotatory Power of 

 certain Incandescent Vapours, Henri Becquerel, 167 ; 

 Irregular Reflection, C. C. Hutchens, 189; Mirage, Major P. 

 A. MacMahon, F.R.S., 259; Absorption of Light by Body 

 in Magnetic Field, 263 ; Optical Properties of Invisible 

 Residual Luminescence, Gustave Le Bon, 311; Source of 

 Energy in Radio-Active Bodies. Sir Wm. Crookes, 311 ; 

 Visibility of Rontgen Rays, E. Dorn, 357 ; the Reflection of 

 Kathode Rays, A. A. C. Swinton, 405 ; the Diffraction of 

 Rontgen Rays, Prof. Haga and Dr. C. II. Wind, 623 ; 

 Double Refraction produced by Magnetic Field related to 

 Zeeman Phenomena, A. Cotton, 359 ; Transparency of 

 Opaque Bodies for Luminous Radiations of Great Wave- 

 length, G. Le Bon, 359 ; Effects of Light at very Low 

 Temperatures, A. and L. Lumiere, 383 ; Optical Experiment, 

 Thom. D. Smeaton, 487 ; New Form of Light Mirrors, A. 

 Mallock, 525 ; Origin of Magneto-Optic Rotation, J. Larmor, 

 F.R.S., 527, 597 ; Die Medial-Fernrohre, L. Schupmann, 

 532 ; a Comparative Study of Visual Accommodation, Th. 

 Beer, 541 ; Multiple Vision, Shelford Bidwell, F.R.S., 559; 

 Contrivances for exhibiting Resultant of Two Circular or 

 Elliptic Variations of Different Periods, Dr. H. J. Oosting, 

 614 ; the Theory of the Rainbow, 6i6 



Oracle, from Sphinx to, A. Silva White, 266 



Oram (H. J.), Water-Tube Boilers for Warships, 471 



Orbit of Castor, the. Prof. Doberck, 17 



Orbit of Comet 1S96 HI. (Swift), Prof. R. G. Aitken, 519 



Orbit of the Leonid Meteor Swarm, the, G. Johnstone Stoney, 

 F.R.S., A. M. W. Downing, F.R.S., 497 



Orbit of Witt DQ, the, Thomas W. Kingsmill, 416 



O'Reilly (Prof. J. P.), the Twelfth Movement of the Earth, 

 176 



Organic Compounds, Electrolysis and Electrosynthesis of. Dr. 

 Walther Lob, 581 



Organic Evolution Cross-examined, the Duke of Argyll, Prof. 

 R. Meldola, F.R.S., 217 ^ 



Organic Variations and their Interpretation, J. T. Cunning- 

 ham, 7 



Origin of Atmospheric Electricity, the. Prof. Cleveland Abbe, 

 452 



Origin of the Aurora Spectrum, the, Prof. C. Runge, 29 ; T. 

 VV. Backhouse, 127 



Origin of Magneto-Optic Rotation, J. Larmor, F. R. S., 527, 

 597 



Orion Nebula, Variation of Spectrum of, Prof. T- E- Keeler, 

 379 



a Orionis, Observations of, R. T. A. Innes, 233 



Ormerod (Eleanor A.), Handbook of Insects Injurious to 

 Orchard and Bush Fruit, 75 ; Report of Observations of 

 Injurious Insects and Common Farm Pests during the Year 

 1S98, with Methods of Prevention and Remedy, 581 



Ornithology : the Structure and Classification of Birds, F. E. 

 Beddard, 49 ; Food of Cuckoos, Prof. F. E. L. Beal, 61 ; 

 Food of Shrikes, Dr. S. D. Judd, 61 ; Why Birds are not 

 Killed by Eating Poisonous Fruit, Dr. John Lowe, 77 : 

 Atropa belladonna and Birds, 102 ; Birds and Poisonous 

 Fruit, E. M. Langley, 149; Howard Fox, 149; Chicken 

 Reared by Buzzard, A. F. Grossman, 94 ; the Range of the 

 Garefowl, Prof. Alfred Newton, F. R.S., 125 ; Papa Westray 

 Holm, the Home of the Great Auk, Prof. Newton, 132; 

 Fantailed Cuckoo Reared by Rock-Warblers, Mr. North, 

 143 ; Birds of the British Isles, John Duncan, 148 ; Recent 

 Work in Ornithology, Dr. P. L. Sclater, F.R.S., 159; the 

 Protection of Swallows and Martins, J. H. Allchin, 183 ; the 

 Alleged Destruction of Swallows and Martins in Italy, 

 Richard Bagot, 224 ; Prof. Henry H. Giglioli, 340 ; the 

 Decrease of Swallows and Martins, J. Herbert Allchin, 271 ; 

 the Wanton Destruction of Rare Visitants to our Shores, E. 

 L. J. Ridsdale, 296 ; the Great Catalogue of Birds, 296 ; the 

 British Museum Catalogue of Birds, Prof. E. Ray Lankester, 

 F.R.S., 318 ; Notes on Cage Birds, W. T. Greene, 389; the 

 Protection of Insectivorous Birds, Paul Willet, 397 ; Wonders 

 of the Bird World, R. Bowdler Sharpe, 438 ; External Nares 

 of Cormorant, W. P. Pycraft, 500 ; Breed of Weka Rail 

 and Snow-Goose, F. E. Blaauw, 527 ; Birds, A. H. Evans, 

 529 ; " Quintocubitalism " in Birds' Wings, P. C. Mitchell, 



