Nature, June 3, 18 



Numbers, Integer, of the First Centenary, satisfying the Equa- 

 tion A' = B'+ C\ Sir G. B. Airy, F.R.S., 532 

 Numerical Examples in Heat, R. E. Day, 558 

 Numerical Exercises in Chemistry, T. Hands, 99 

 Nuova Scienza, on the Modern School of Metaphysicians, Prof. 



Caporali's, 611 

 Nuovo Giornale Botanico Italiano, 189, 403 

 Nutation, Secular, of the Earth's Axis, 376 



Obi and Petchora Rivers, New Route between, Nosilofif, 186 

 Obligado (Col.), Death of, 44 



Observation of Neptune occurring in Lament's Zones, 498 

 Observatories: the Zi-ka-wei, 17; Hints on the Construction 

 and Equipment of, for Amateurs, G. F. Chambers, 56 ; 

 Mountam Meteorological, Dr. Hellmann on, 72 ; Beloit 

 College, A. L. Chapin, 81 ; Dearborn, 107 ; Ben Nevis, 159 ; 

 Palkowa, 185 ; Leyden, 256 ; Report of the Superintendent of 

 the U.S. Naval, G. E. Belknap, 330 ; Rainfall on Ben Nevis, 

 347 ; Harvard College, 376 ; Astrophysical, of Potsdam, 376 ; 

 Naval, Washington, 376; German Naval, 411 ; Montsouris, 

 424; U.S. Naval, 494; Armagh, 498; Rousdon, Devon, 

 Cuthbert Peek, 538, 610 

 Observatoiy, Annual Companion to the, 396 

 Observers, School Children as, Mrs. Bryant, 94 

 Ocean, the, W. L. Jordan, 28 



Oceans, Permanence of Continents and, J. Starkie Gardner, 53 

 Odell (W.), University Extension Movement, 344 ; Free 



Public Libraries, &c., Thomas Greenwood, 459 

 Odling (Prof William, F.R.S.), Address before the Institute of 



Chemistry, 73 ; Whole Duty of a Chemist, 99 

 Oil, Gas, and Electricity as Lighthouse lUuminants, Reports to 

 the Trinity House on the Inquiry into the Relative Merits of, 

 271 

 Old Sea-Beaches at Teignmouth, G. Wareing Ormerod, 263 

 011iff(A. S. ), Cryptoinmatus jansoni. Matt., 23 

 Ommanney (Admiral Sir Erasmus, F.R.S.), November Meteors, 



103 

 Omond (R. T. ), Sunrise-Glows, 487 

 Ophthalmologic Education in the United Kingdom, Dr. R. E. 



Dudgeon, 29 

 Optical Theories, R. T. Glazebrook, F.R.S., 1 8 

 Orange-Trees, Ravages of Larva of Longicorn Beetle on, 



Macleay, 23 

 Orbit of lapetus, 303 

 Orbit of Tethys, 303 

 Organic Chemistry, Outlines of. Dr. II. Forster Morley, Dr. 



F. R. Japp, F.R.S., 435; a Correction, 461 

 Organic and Inorganic Lessons in Elementary Chemistry, Sir 



Flenry E. Roscoe, 603 

 Ormerod (Eleanor A.), Reports on Injurious Insects, 577 

 Ormerod (G. Wareing), Old Sea-Beaches at Teignmouth, 



263 

 Orientalist, the Ceylon, 62, 518 

 Orientalists, Congress of, 234 

 Orionis, Gore's Nova, 235, 256 

 Orionis, New Star near x. P™f- A. Ricc6, 269 

 Ornithology, notes on, 93 ; Prof. Alfred Newton's article on, in 



the Encyclopaedia Briiannica, 121 

 Osteology of the Mammalia, an Introduction to the, W. II. 



Flower, F. R.S., 364 

 Otago University Museum, Notes from the, Prof T. JelTcry 



Parker, 163 

 Otter-hunting in Behring's Sea, 136 



Owen (Sir Richard, F.R.S.) : an Extinct Wombat, 94; De- 

 scription of Fossil Remains of Two Species of a Megalanian 

 Genus (Meiolania, Ow.) from Lord Howe's Island, 573 

 Oxford, Medical Study in, 445 

 Oxygen, Absorption-Spectrum of, 89 

 Oxygen, Chemical Results of Explosion of Carbon Monoxide 



and, Traube, 63 

 Oxymetric Fluid (Schiitzenberger's) on a Photo-Chemical Reaction 



of, Victor Jodin, 552 

 Oysters : Resting Position of, A. R. Hunt, 8, 154 ; Prof. W. 

 Turner, F. R. S. , 30; Dr. Karl Mbbius, 52; a Correction, 

 John A. Ryder, 80; J. T. Cunningham, 129; Artificial 

 Propagation of, W. K. Brooks, 329 ; Oyster-Culture in 

 Sweden, 537 



Pacific Islands, Proposed Exploration of, Cyril Haviland, 280 



Pahang, Explorations in. Rev. J. E. Tenison- Woods, 31 



" Palan Byoo," or " Teindoung Bo," some Account of the, J. 



Wood-Mason, 6 

 Palestine, Geology of, Edward Hull, F.R.S. , 6oi 

 ralinurus vulgaris in Norwegian Waters, 279 

 Palisa (Herr), Discovery of Minor Planets, 567 

 Panama Canal, Progress of the, F. de Lesseps, 552 

 Paper, the Use of Ruled, in Austrian Schools, 208 

 Paraguayans, Abnormal Development of Hair on, 326 

 Parallax of Nova Andromedaa, Prof. Asaph Hall, 566 

 Parallax of i|/^ Auriga;, Herr W. Schur, 612 

 Parallel Roads in Central Norway, " Seter," " Strandlinjer," 

 or. Dr. Andr. M. Hansen, 26S ; Jas. Melvin, 293 ; Hugh 

 Miller, 318; J. Starkie Gardner, 343 ; Dr. Andr. M. Hansen, 



36s 

 Parhelia, Solar Halo with, William Ellis, 535 

 Paris: Telephonic Communication between Rheims and, 18; 

 Brussels and. 375 ; Academy of Sciences, 24, 48, 71, 95, 

 120, 143, 168, 192, 215, 239, 264, 287, 311, 336, 359, 3S3, 

 406, 431, 455, 479, 503. 527. 552, 575. 599> 622 ; Prizes 

 given by the, 187, 215 ; Astronomical Prizes of the, 235 ; 

 and M. Paul Bert, 347 ; Award of the Prix Montyon to M. 

 Girard, 347 ; Appointment of a Committee on Hydrophobia, 

 448 ; Geographical Society, 44, 64, 108, 281 ; Medals for 

 1886 of, 467 ; Anthropological Society of, 89 ; School of 

 Ethnology, 105 ; Society of Geography Bulletin, 211 ; Paris 

 to Pekin over Siberian Snows, Victor Meignan, 219 ; Electric 

 Lighting of the Opera House in, 234 ; Use of Salt in Lique- 

 faction of Snow in, 326 ; Movement to Replace Wine by 

 Cider in, 327 ; Deaths from Hydrophobia in, during 1885, 

 348 ; the Tower of St. Jacques, 396 ; Proposed Loawy Equa- 

 torial-Coude in, 464 ; Proposed Erection of the Gigantic 

 Metallic Tower Invented by M. Eiffel at the Paris Exhibition, 

 611 



Parker (Prof. T. Jeffery), Notes from the Otago Museum, 

 163 



Parliament, Scientific Men in, 160 



Parrot, Right-Footed, C. V. Boys, 8 



Partenkirchen, Great Storm at, 190 



Passerini (Prof.), Italian Aid to Biological Research, 52 



Pasteur (Louis), and Hydrophobia, i, 159, 423, 44S, 464, 

 599 ; Pasteur Institute in New York, 233 ; the Cure of 

 Diphtheria, 423 ; Application of Pasteur's Meth id against 

 Rabies in St. Petersburg, 464 ; the Proposed Pasteur Insti- 

 tute, 479 



Patterson (D.), Iridescent Clouds, 220 



Paul (Prof.), Attempts to obtain Records of Earth Tremors 

 from Flood Rock Explosion, 39 



Pawlow (Herr), How the Fresh-water Mussel opens its Shell, 

 106 



Peach (Chas. William), Obituary Notice, 446 



Peal, S. E., the Mithun, 7 



Peale (A. C), on the Method of stating Results of Water 

 Analyses, 546 



Pearson (Dr. Karl), History of Elasticity, 53 ; Obituary Notice 

 of M. Barre de Saint- Venant, 319 



Peck (W.), the Apparent Movements of the Planets and the 

 Principal Astronomical Phenomena for the Year 1S86, 438 



Peculiar Ice-Forms, B. Woodd Smith, 461 



Peek (Cuthbert), Rousdon Observatory, Devon, 538, 610 



Pegler (H. Holmes), Book of the Goat, W. B. Tegetmeier, 412 



Pekin, from Paris to, over Siberian Snows, Victor Meignan, 

 219 



Pelagic Stages of Young Fishes, 467 



Pendulum, the Compound, the Isodynamic Surfaces of the, 

 F. E. Nipher, 332 



Penhallow (D. P.), Tendril Movements in Cucurbitacese, 332, 

 548 



Pennington (A. S.), British Zoophytes, 149 



Pennsylvania, Fall of Huge Aerolite in, 183 



Pennsylvania, Notes on the Physiological Laboratory of the 

 University of, N. A. Randolph, 126 



Peptones, Alimentary Value of the, Prof. Zuntz, 144 



Perak, Tribes of the State of, 377 



Periods, Universal Secular Weather, E. Douglas Archibald, 52 



Peripatus, Cape, on the Development of, Adam Sedgwick, 



547 

 Permanence of Continents and Oceans, J. Starkie Gardner, 53 



