Index 



VSjipplement to Nature, 



Old Standards of Weights and Measures, 280 



Olenellus Zone, the Discovery of, in the North-West Highlands 

 of Scotland, Sir Archibald Geikie, F.R.S., 479 



Olive- Growing in Australia, Principal Thomson, 501 



Omond (R. T.), the Winds of Ben Nevis, 191 



Ontario, Wolves in, 18 



Opal in New South Wales, Precious, 162 



Optics : Dr. Schobhen's Lantern Stereoscope. 142 ; Apparatus 

 to show Greater Sensitiveness of Eye to Different Colours, 

 Captain Abney, F.R.S., and General Festing, F.R.S., 187; 

 an Optical Illusion, Prof. S. P. Thompson, F.K.S., 187; 

 Refraction through a Prism, Rev. John H. Kirkby, 294 ; 

 Oscillations of the Retina, A. Charpentier, 311 ; Instru- 

 ment for the Optical Comparison of Transparent Liquids, M. 

 Sonden, 478 ; on Blending of Separate Chromatic Sensations 

 perceived by each of Two Eyes, A. Chauveau, 488 ; Colour 

 Sensations excited in One Eye by Coloured Light illuminating 

 Retina of other, A. Chauveau, 536 



Orange Disease in Cyprus, A. E. Shipley, 528 



Oranges, Grapes, &c., the Cultivation of, in Greeee and 

 Australia, 630 



Ordnance Survey, the, 112 ; H. T. Crook on the, 508 



Oregon, Discovery of Enormous Stalactite Cavern in, 258 



O'Reilly (Prof. J. P.) : the Recent Earthquakes in Italy, 293 ; 

 Weather Cycles, 541 



Orenburg, Remarkable Weather Change at, 389 



Organ Pipes, the Energy used by, C. K. Wead, 310 



Organic Chemistry, Practical Work in, Fredk. Wm. Streatfeild, 

 466 



Orientation, Prof. J. Norman Lockyer, F.R.S., on some Points 

 in the Early History of Astronomy, 8, 57, 107, 199 



Ormerod (Miss), Resignation of, 451, 528 



Ornithology : the Crowing of the Jungle Cock, S. E. Peal, 

 30 ; B. P. Cross, 151 ; Antipathy (?) of Birds for Colour, 31 ; 

 Annual Meeting of the German Ornithological Society, 39 ; 

 Birds-nesting in Western India, Lieutenant H. E. Barnes, 

 42; the Soaring of Birds, S. E. Peal, 56; A. C. Baines, 

 520; the Wild Birds Protection Act, 65; Ornithology of 

 Lake Victoria Nyanza, Emin Pasha, 87 ; Vienna In- 

 ternational Ornithological Congress, rii ; the Second 

 Ornithological Congress, 153 ; the Insectivorous Birds 

 of Victoria, C. French, 162 ; Dr. A. Koenig's Ornitho- 

 logical Observations in Madeira and Canary Islands, 163 ; 

 Nests and Eggs of Catbird, Australia, A. J. North, 207 ; 

 the Cuckoo, 223 ; the Green Sandpiper, Duke of Argyll, 

 F.R.S., 274 ; Mr. Ridewood's Dissections in Entrance Hall 

 of Natural History Museum to illustrate Variations in Deep 

 Plan'ar Tendons of Bird's Foot, 303 ; the Destruction of 

 Small Birds in France, 390 ; Additions to Bird Department 

 of the Natural History Museum, 451 ; a New Species of 

 Albatross, Sir Walter Bulkr, F.R. S., 502; a Remarkable 

 Characteristic of the Wanr'er'ng Albatross, Sir Walter Buller, 

 F.R.S., 502 ; the Habits of the Kingfisher, J. W. Hall, 502 ; 

 the Collection, &c., of Birds' Eggs and Nests, C. Bendire, 

 502 ; the Bird Collections in the Oxford University Museum, 

 Dr. P. L. Sclater, F.R.S., 518; Water-birds that Live in 

 the Woods, G. B. Sennett, 529 ; Sparrows and Hawk in 

 New Zealand, T. W. Kirk, 529 ; a Wild Duck's Fore- 

 thought, W. Prentis, 550 



Orrery, Messrs. Philip and Sons' New, 501 



Ostrich in Nesting Season, Pugnacity of Male, Tames Andrew, 

 452 



Ostwald (Wilhelm), Outlines of General Chemistry, 561 



Oviparous Species of Peripatus, Arthur Dendy, 468 ; Prof. A. 

 Sedgwick, F. R. S., 494 



Oxford : University of, Increased Accommodation for Medical 

 and Science Schools, iti; Agricultural Education, 183; 

 Prof. Pritchard's Report on the Observatory, 184 ; Oxford 

 Summer Meeting of University Extension Students, 256 ; 

 Report of Oxford University Extension Delegates, 451 ; the 

 Bird Collections in the Oxford University Museum, Dr. P. 

 L. Sclater, F.R.S., 518; Oxford University Museum, Prof. 

 W. H. Flower, F.R.S., 619 



Oxygen by Plants at Low Temperatures, Disengagement of, 

 H. Jumelle, 216 



■Oyster Disease and its Remedies, Mr. Fryer, 233 



Oyster Fisheries, Mr. Fryer, 233 



Oyster, Mud, of New South Wales, 437 



Oysters and all about them, John R. Philpots, the Oyster, 

 a Popular Summary of a Scientific Study, Prof. W, K. 

 Brooks, 490 



Pacific Postal Telegraph Company, Opening of a New Tele- 

 graph. Office at San Francisco, 231 



Packard (Dr. Alpheus S.), Fifth Report of the United States 

 Entomological Commission, 217 



Paddling, Effect on Development of Arms and Chest, J. J. 

 Lister, 476 



Paddy in Japan, Manuring Experiments with, Dr. O. Kellner, 

 353 



Padelletti (Prof.), on the Insufficiency of the usual Investiga- 

 tion for Movement of Plane of Oscillation of Foucault's 

 Pendulum in Relation to Earth's Rotation, 326 



Paget (Charles E.), on Diphtheria, 369 



Pahang, Straits Government Scientific Expedition to, 1 12 



Palaeography, Coptic, Album de Paleographie Copte pour 

 servir a 1' Introduction Palcographique des Actes des Martyrs 

 de I'Egypte, Henri Hyvernat, 609 



Palaeontology : the Fossil Insects of North America, with Notes 

 on some European Species, by Samuel H. Scudder, R. 

 Lydekker, i 



Palatability, Comparative, E. B. Titchener, 540 



Palestine Exploration Fund, 576 



Palmer's (Dr.) Botanical Collections in Western Mexico and 

 Arizona, 528 



Panjab, Craniometry of Outcaste Tribes of, Dr. R. H. Charles, 

 576 



Pantellaria, Earthquakes at, 599 



Paquelin (M.), Incandescence of Platinum Wires under Water, 

 512 



Parcels Delivery, Underground, A. R. Bennett, 510 



Pareiasaurus, Researches on the Structure of. Prof H. G. 

 Seeley, F.R.S., 93 



Paris: Academy of Sciences, 23, 48, 72, 96, 119, 144, 168, 

 192, 216, 240, 263, 287, 311, 335, 360, 392, 416, 440, 464, 

 488, 512, 536, 560, 584, 608, 632; Annual Report of the 

 Paris Observatory, 70 ; Extraordinary Telephone Accident 

 at, 113; Contemplated Reorganization of Paris Museum of 

 Natural History. 184, 258; Meteorology in Paris, 185; the 

 Paris Telephonic Service, 326 ; Sir Joseph Fayrer and Dr. 

 Bateman elected Associates of the Paris Academy of Medi- 

 cine, 351 ; Annales of the Central Meteorological Office, 389 



■ Parka decipiens, the Fossil, 165 



Parker (Prof. T. Jeffery, F.R.S.), Lessons in Elementary 

 Biology, Prof. E. Ray Lankester, F.R.S., 290 



Parker (Prof. W. N.), on Respiration in Tadpoles, 482 



Partsch (Dr.), the Climate of Cephalonia, 326 



Pa'^^coe (Francis P.), the Darwinian Theory of the Origin of 

 Species, 247 



Pathology, Hon. R. Russell on Influenza, 302 



Payne (F. F.), the Destruction of Fish by Frost, 31 



Peahody Museum of American Archaeology and Ethnology in 

 1890, Liberal Gifts in Aid of, 232 



Peal (S. E.) : the Crowing of the Jungle Cock, 30 ; the Soaring 

 of Birds, 56 ; a Cause of Lunar Libration, 283 ; on the 

 Morong of the Natives of Asam, 511 



Pearson (Prof. Karl), the University of London, 102 



Peary (Lieutenant), Projected Botanical Arctic Expedition, 

 231 ; the Accident to and Position of, 475 



Pechard (E.), an Explosive Compound resulting from Action 

 of Baryta Water on Chromic Acid in Presence of Oxygenated 

 Water, 264 



Pekelharing (Heer), on a Substance analogous to Fibrin 

 Ferment contained in Magnesium-Sulphate- Plasma or Kalium- 

 Oxalate- Plasma, 288 



Pelzeln (August von), Death and Obituary Notice of, 500 



Penfield (S. L.), the Minerals in Hollow Rhyolite Spherulites, 

 310 



Periodic Comets, Physical Appearance of, E. E. Barnard, 551 



Periodic System, a Text-book of Chemistry based on the, 

 William Ramsay, F.R.S., 50 



Peripatus, Oviparous Species of, Arthur Dendy, 468 ; Prof. A. 

 Sedgwick, F.R.S., 494 



Perkin (Dr. W. H., F.R.S.): Refractive Powers of Certain 

 Organic Compounds at Different Temperatures, 287 ; Society 

 of Arts Albert Medal for 1890 presented to, 301 



Perley (Mr.), on Old-time Winters in Essex County, Massa- 

 chusetts, 353 



Perman (E. P.) and Prof. W. Ramsay, F.R.S., on an Attempt 

 to determine the Adiabatic Relations of Ethyl Oxide, 22 



Perroncito (Prof.), Tuberculosis, 397 



Perrotin (M.), Partial Eclipse of Sun, June 6, 1891, 168 



Perry (Prof. J., F.R.S.) : Blakesley's Method of Measuring 



