Nature, Nov. 21, 1878] 



INDEX 



XVll 



Pile-Structures : at Oderberg, 50 ; in Bavaria, 601 



Pillars, Earth, James H. Midgley, 567 ; J, Edmund Clark, 617 



Pine Timber and Pozzolana Mortar, General H. H. Maxwell 



19 

 Pme Plantations on the Sand-Wastes of France, Dr. J. Croumbie 



Erown, 666 

 Pisciculture at Hiiningen, 504 

 Placentation of Sloths, Recent Observations upon the. T. C 



Galton, 686 f" . j . 



Planets : nearest Approximation of Small, to the Earth's Orbit, 



225 ; Cacciatore's Supposed Planet of 1835, 261 ; Mina, 307 ; 



the Intra- Mercurial Planet, 495, 520, 552, 569; Sir G b' 



Airy, F.R.S., 380, 495; Prof. James C. Watson, 433, 495, 



616 ; Lewis Swift, 539 

 Plante (Gaston), Rheostatic Machine, 45 

 Plants : Insects Corroborative of the Nativity of Certain, Dr 



Buchanan White, 278 ; Prizes for Essays on Chemical 



Changes in the Composition of, 292; Nutrition of, 324; 



Experiments on the Living Cells of, 504; Respiration o, 



James Jamieson, 539 

 Playfair (Col. R. L.), Travels in the Footsteps of Bruce in 



Algeria and Tunis, 91 

 Plymouth Institution, and Devon and Cornwall Natural History 



Society, 486 

 Pneumatic Battery, Byrne's, 1 1 1 

 Poeciloptera, on the Wax of. Dr. A. Ernst, 487 

 Poisons, African Vegetable, 534 

 Poisonous Australian Lai<e, Geo. Francis, 11 

 Polar Regions : the Dutch Polar Expedition, 360, 521 ; Polar 



Colonies Scheme, 521, 551 ; Discovery of an Island in the 



Polar Sea, 697 

 Polariscope, a New Form of, 322 



Polarised Light, the Effects of Various Substances on, 322 

 Pole (Dr. William, F.R.S.), Colour- Blindness in Relation to 



the Homeric Expressions for Colour, 676, 700 

 Pollock (F.), Physical Science for Artists, 249 

 Polymicroscope, the, 159 

 Polytechnic, Royal, 456 

 Pomona, the Herefordshire, 706 



Pompeii and Herculaneum, Celebration of the Destruction of 104 

 Poppy, the Opium, the Cultivation of, 133 

 Population of the Earth, 338 



Porter (George), " Magnetism and Electricity," 615 

 Portraits, Composite, Francis Galton, F.R.S., 96 

 Port Stewart, Flint Factories at, 478 

 Potassium Permanganate, the Light Reflected from, 294 

 Pozzolana Mortar and Pine Timber, General.H. H. Maxwell, 19 

 Prague Observatory, the Variations of the Diurnal Range of the 

 Magnetic Declination as Recorded at. Prof. Balfour Stewart 

 F.R.S., 242 ' 



Prague, Prohibition of Trains to Ladies' Dresses in, 632 

 Praine-Dogs, Snakes, and Owls, 252 

 I'recession of a Viscous Spheroid, G. H. Darwin, 580 

 Preeoe (W. H), the Microphone, 207; on Recent Advances in 



lelegraphy, 484 ; the Electro-Magnet a Receiving Telephone, 

 540 ; Magnetic Storm of May 14, 1878, 668 

 Prehistoric Monuments of Cornwall and Ireland, 478 

 Prescott (G. B), the Speaking Telephone, Talking Phono-rraph. 



&C., 698 o r > 



Preston (S. Tolver), on the Availability of Normal-Temperature 

 Heat-Energy, 92 ; on the View of the Propagation of Sound 

 Demanded by the Acceptance of the Kinetic Theory of Gases 

 253 



Preventive Medicine in Relation to Public Health, Dr. A Car- 

 penter, 248 



Primates, Fear of Snakes in the, 227 



Prime--, Forms of. Exceptions to, 344 



Pringle (E. H.), Physical Science for Artists, 356 ; Brehm's 

 " Ihierleben," 518; the Sea-Serpent Explained, ^ig; Com- 

 pound Lightning Flashes, 587 



Pritchard (H. Baden), Military BallooninT, 491 



Prjvalsky's Exploration of Thibet, 496 



Procter (Henry R.), the Aurora Observations of the Austro- 

 Hungarian Arctic Expedition 1872-74, by Carl Weyprecht, 



Proctor (R. A.), the Cycloid and Cycloidal Curves, ^55 

 Protectorate, our New (Cyprus), 302 



Proterogynous Lichogamy, on the Association of an Incon- 

 spicuous Corolla with, in Insect-Fertiljsd Flowers, 508 

 r'stlophytum monense, 555 



Pulkowa Library Cataloge, 20 



Pulkowa Observatory, New Refractor for, 502 ; Observations 



of the, 688 

 Puy-de-D6me, Nocturnal Variations of Temperature at, 608 

 Pyridine Series, Investigations on the, Dr. W. Ramsay, 473 



Quartz ; Influence of Temperatme on the Rotatory Power of, 

 Quetelet (Ernest), Obituary Notice of, 551 



Radau (M. R.), Les Radiations chimiques du Soleil, 63 

 Radiolarians, the Supposed, and Diatomacea; of the Coal- 



Measures, Prof. W.-C. Williamson, F.R.S., 508 

 Railway Brakes, 471 

 Rainbow, Quadruple: Henry P. Dowling, 142; Multiple, 170; 



on Certain Phenomena accompanying. Prof. Silvanus P. 



Thompson, 441 ; an Unusual, G. M. Whipple, 696 

 Rainfall : of India, S. A. Hill, 193 ; of Europe, 287 ; of Brazil 



and Sun-Spots, Orville A. Derby, 384; of Ireland, G. J. 



Symons, 484; and Sun-Spots, C. Meldrum, F.R.S., 564 

 Ramsay (A.), a Subject Index to Scientific Periodical Literature, 



279 . . , 



Ramsay ( Dr. W. ), Investigations in the Pyridine Series, 473 ; 

 some of the Derivatives of Furfurol, 474 



Ranee (C. E. De), the National Water Supply, 73 ; the Super- 

 ficial Geology of South-West Lancashire, Prof. W. Boyd- 

 Dawkins, F.K.S., 561 



Rarefied Gases, on Stresses in, arising from Inequalities of Tem- 

 perature, Prof. Clerk-Maxwell, F.R.S., 54 



Rayleigh (Lord, F.R.S.), on Uniformity in the Rate of Rota- 

 tion of an Axle, 1 1 1 ; the Explanation of Certain Acoustical 

 Phenomena, 319 



Rayons de Crepuscule, F. Pollock, 249 ; Rev. R. Abbay, 329 ; 

 E. H. Pringle, 356; Julias Kruttschnitt, 540; H. S. Car- 

 hart, 540 



Reale Istituto Lombardo di Scienze e Lettcre, 186, 350, 400, 

 636, 688 



Reclus (Elisee), 393 



Rede Lecture, Prof. Clerk-Maxwell's, 159 



Reed (E. J., C. B., F.R.S.), "White's Naval Architecture," 



137 

 Reflector, Three-Foot, Lord Rosse on an Equatorial Mounting 



for a, 506 

 Relationships, Classification of Primitive, 135 

 Renard (Capt.), Improvements in Balloons, 133 

 Rendiconto delle bessioni deU' Accademia delle Scienze dell' 



Istituto di Bologna, 428 

 Reproductive Elements, the Primary Germ-Layers and the 



Origin of the Male and Female, 386 

 Research, the Endowment of. Prof. E. Ray Lankester on, 610; 



the Lancet on State Aid to Science, 629 

 Resonators, Brass Wind Instruments as, 271 

 Respiration of Plants, James Jamieson, 539 

 Resting Spores, Dr. E. Perceval Wright, 173 

 Retrospect and Prospect, I 

 Reyer (Dr. Ed.), Beitrag zur Fysik der Eruptionen und der 



Eruptir-gesteine, 91 ; " Vulcanologische Studien," 487 

 Rheostat, Edison's New Carbon, 674 

 Rheostatic Machine, Gaston Plante, 45 

 Ridout (R. H.), an Experimental Investigation of the Structure 



of Fluid Colunms which are Affected by Sound, 604 

 Rio Grande do Sul, Proposed Railway from, to Uruguay, 133 

 Rivers and Streams, the Conservancy of, 661 ; Edward Easton, 



C.E., 452 

 Roberts (E.), Self-Acting Tide- Calculating Machine, 75 

 Roberts (Isaac), on the Filtration of Sea- Water through Triassic 



Sandstone, 475 

 Robertson (David, Jun.), White Swallows, 618 

 Robinson (Prof. 1.), New Work on Ferns, 555 

 Robinson (Dr. T^ R.), the Determination ot the Constants of 



the Cup Anemometer, 82 

 Robinson (W.), " Parks and Gardens of Paris," 562 

 Rodier (E.), Solar Halo, 13 



Rodvvell (G. F.), Proposed Observatory on Mount Etna, 587 ; 

 on an Ascent of Mount Hekla and the Eruption of February 



27, 1878, 596; the Height and Shape of Mount Hekla, 641 

 Rohl'fs (Dr.Gerhard), Expedition to Africa, 521, 601 

 Rokitansky (Baron Karl von), Obituary Notice of, 371 



