Nature, 
December 14, 1899 
Lndex 
XXV 
the Coast of the Coral Sea: being the Experiences and Ob- 
servations of a Naturalist in Australia, Richard Semon, 169 
New Philharmonic Musical Pitch, the, A. J. Hipkins, 421 
New South Wales Royal Society, 216 
New Zealand Godwit, the, (Zzmosa Novae Zelandiae), Taylor 
White, 29 
New Zealand Sheep-eating Parrot, Kea, Dr. F. T. King, 205 
Newcomb (Simon), Scientific Worthies, M. Loewy, 1 
Newcomb (Prof. S.), the Terrestrial Gegenschein, 544 
Newman (Dr. George, F.R.S.), Bacteria, 434 
Newtonian Constant, Method for Determining, G. K. Burgess, 
432 . 
Newtonien, Théorie du Potentiel, Prof. H. Poincaré, 410 
Nichols (H. W.), the Ores of Colombia, 442 
Nickel : the Magnetic Compass and Nickel Cases, Rev. F. J. 
Jervis-Smith, F.R.S., 173 
Niland (A. A.), Maxima of Mira, 232 
Nipher (F. E.), Gravitation and Gaseous Nebula, 212 ; Tem- 
peratures in Gaseous Nebulz, 377 
Nitrates, Soluble Animal Ferment Reductive of, E. Abelous, 
264 
Noble (Sir Andrew, F.R.S.), on the Best 
Engineers, 551, 568 
Nomographie, Traité de, Maurice d’Ocagne, 363 
Nordgaard (O.), Bergens Museum, Report on Norwegian 
Marine Investigations, 1895-97, 313 
North Atlantic Ocean, July Hurricanes in, 281 ; January and 
February Storms in, 351 
North Pacific, Fur-Seal Herds of the, 354 
Northumberland, Durham and Newcastle-upon-Tyne, Catalogue 
of the Lepidoptera of, J. E. Robson, 590 
Norway, Bergens Museum, Report on Norwegian Marine 
Investigations, 1895-97, Dr. Johan Hjort, O. Nordgaard and 
H. H. Gran, 313 
Notation of the Calculus of Differences, the, Prof. Everett, 
584 
Nova Sagittarii, 625 
Nova Scotia, Gold in, E. R. Faribault, 205 
Nursery Handbook, Carvell’s, J. M. Carvell, 518 
Nutrition, on Negative Evidence Regarding the Influence of, 
in Determining Sex, Dr. J. F. Gemmill, 631 
Nuttall (G. C.), Bacteria and Tobacco, 159 
Education for 
Obermiiller (Dr. K.), Presence of Tubercle Bacillus in Berlin 
Market Milk and Butter, 109 
Object-Glass, Yerkes, Temperature Changes in, Prof. Barnard, 
281 
Observatories : the Royal Observatory, Greenwich, 136 ; 
Oxford University Observatory, 207 ; Cambridge Observatory, 
208 ; the New Allegheny Observatory, 260; Natal Obsery- 
atory, E. Nevil, 281; Mr. Tebbutt’s Observatory, 377 ; the 
Paris Observatory, 402 ; the Cape Observatory, 430 ; Harvard 
College Observatory, 442 ; Annual Report of the Melbourne 
Observatory, P. Barrachi, 551; Strassburg Observatory, 625 
Ocagne (Maurice d’), Traité de Nomographie, 363 
Oceanography: the Results of the Va/dizvza Expedition, Dr. 
Supan, 114; the Bore at Moncton, Bay of Fundy, W. Bell 
Dawson, 161 ; Tides of the River St. Lawrence and the Bay 
of Fundy, Sir J. W. Dawson, F.R.S., 291; Tides in the 
Bay of Fundy, W. H. Wheeler, 461 ; Investigations of 
Double Currents in the Bosphorus and elsewhere, Admiral S. 
Makaroff, 261; Undercurrents, Rear-Admiral Sir W. J. L. 
Wharton, F.R.S., 316; Sir John Murray, K.C.B., F.R.S., 
LL.D., 522; the Cause of Undercurrents, Admiral S. 
Makaroff, 544 
Oddone (Dr. Emilio), Magnetic Elements at Pavia for June, 
1898, 623 
(Euvres Complétes de Christiaan Huygens publiées par la 
Société Hollandaise des Sciences, Dr. J. L. E. Dreyer, 
F.R.S., 457 
Ogawa (M.), Ethyl Ammonium Sulphite, 47 
Ogden (H. N.}, Sewer Design, 172 
Ogilvie (Dr. Maria M.), Torsion Structure in the Alps, 443 
Oldham (C.), Bats and their Insect Prey, 624 
Oliver (Prof. T.), Lead Compounds in Pottery Glazes, 18 
Omori (Prof. F.), on Earthquake-Motion, 431 
Opacity, Transparency and, the Right Hon, Lord Rayleigh, 
F.R.S., 64 é 
Ophiurotdea, an Account of the Deep Sea, collected by the 
Royal Indian Marine Survey Ship Zzvestigator, R. Koehler, 
459 
Opinions et Curiosités touchant la Mathématique, G. Maupin, 
590 
Opposition of Jupiter, 1899, 597 
Opposition, Mars during, 1898-99, 330 
Optics : Recueil de Données Numeriques publié par la Société 
Francaise de Physique Optique, H. Dufét, 28 ; Transparency 
and Opacity, the Right Hon. Lord Rayleigh, F.R.S., 64 ; 
Luminosity of Rare Earths Heated in Vacuo by Kathode 
Rays, A. A. C. Swinton, 69; an Intense Source of Mono- 
chromatic Light, C. H. Fabry and A. Perot, 71; the Regis- 
tration of Opticians, 88 ; the Reciprocal Phenomenon of Pro- 
duction of Magnetic Field by Circularly Polarised Ray, Prof. 
A. Righi, 206; Rotatory Power of Chlorine in Magnetic 
Field, Prof. A. Righi, 206; Optical Properties of Burnt-in 
Gold and Platinum Films, G. Breithaupt, 212 ; Colour Sens- 
ations in Terms of Luminosity, Captain W. de W. Abney, 
F.R.S, 237; Application of Fourier’s Double Integrals to 
Optical Problems, Charles Godfrey, 287; the Rede Lecture, 
the Wave Theory of Light, its Influence on Modern Physics, 
Prof. A. Cornu, 292; Magneto-Optic Rotation and its 
Explanation by a Gyrostatic System, Prof. Andrew Gray, 
F.R.S., 379, 404; Curiosities of Light and Sight, Shelford 
Bidwell, F,R.S, 389; Rotatory Polarisation of Light in 
Media subjected to Torsion, A. W. Ewell, 455; the Flicker 
Photometer, O. N. Rood, 516 ; Colour Vision and the Flicker 
Photometer, O. N. Rood, 611 ; the Terrestrial Gegenschein, 
Prof. S. Newcomb, 544 ; Halo Rounda Shadow, A. Mallock, 
567 ; Astronomical Camera Doublets, 578 ; on the Influence 
of Solvents on the Optical Activity of Organic Compounds, 
W. J. Pope, 609 
Orbit of Eros, Herr Hans Osten, 625 
Organic Compounds, on the Influence of Solvents on the 
Optical Activity of, W. J. Pope, 609 
Organic Evolution: on some Recent Advances in Spectrum 
Analysis Relating to Inorganic and, Sir Norman Lockyer, 
KEG2Bs, PARES: 603) 
Organism, the Living, an Introduction to the Problems of 
Biology, Alfred Earl, 458 
Organotherapy : Organoterapia, Dr. E, Rebuschini, 316 
Orientation of Greek Temples, F. C. Penrose, F.R.S., 213 
Orloff (Ivan), Colour-printing Machine, 299 
Ornithology: the New Zealand Godwit (Zzmosa Novae- 
selandiae), Taylor White 29: the New Zealand Sheep- 
Eating Parrot, Kea, Dr. F. T. King, 205; an Illustrated 
Manual of British Birds, Howard Saunders, 241; Bower- 
Birds, A. J. Campbell, 275; Obituary Notice of John 
Cordeaux, 398; the Nest of the Little Tern, Mr. Patten, 
512; Sedge-Warblers Seizing Butterflies, Oswald H. Latter, 
520; Bird Life in an Arctic Spring, the Diaries of Dan 
Meinertzhagen and R. P. Hornby, 542 
Orton (K. J. P.), Series of Substituted Nitrogen Chlorides, 167 
Osmond (I. T.), the Thermal Conductivity of Cast Iron, 184 
Osten (Herr Hans), Orbit of Eros, 625 
Osteometric Board, New, Dr. Hepburn, 408 
Ostrogovich (A.), Cerine and Friedeline, 240 
Otological Science, the Birth and Origin of, Prof. U. Pritchard, 
350 
Outlines of Physical Chemistry, A. Reychler, 197 
Oxford University Observatory, 207 
Oxidation in Presence of Iron, Researches on, Mr. Fenton, 609 
Pagel (M.), the Flame of Hydrogen, 72 
Palpebral Oculo-Motor Apparatus in Fishes, N. Bishop Harman, 
631 
Palzeolithics, the Absence of Flint Implements in Scotland, 
Rey. F. Smith, 135 ; Paleolithic Implement of Hertfordshire 
Conglomerate, Worthington G, Smith, 390 
Paleontology: the Vertebrate Remains of Port Kennedy, 
Penns., H. C. Mercer, 113; Distal End of Mammalian 
Humerus from Tonbridge, Prof. H. G. Seeley, F.R.S., 143; 
Evidence of Bird from Wealden Beds of Ansty Lane, Prof. 
H. G. Seeley, F.R.S., 143; Paleontological Divisions in 
Stramberg Limestone,»Dr. M. Remes, 352 ; the Neomylodon, 
A. Gaudry, 564 ; Dr. J. L. Wortman’s Expedition to Wyoming 
for Dinosaurs, 577; Dr. W. D. Matthew’s Expedition to 
Kansas, Nebraska and Colorado, 577 
“* Palu’’ Fish, the, E. R. Waite, 536 
