XXVI 11 



INDEX 



[Nature, Dec. i, 1887 



Photometer, Wedge, Prof. Pickering, 477 



Photometry : Measurement of Luminous Sensations in Function 



of the Quantities of Light, Ph. Breton, 480 

 Phylloxera, Boiteau, 312 

 Physical Geography, Introductory Text-Book of, David Page, 



195 



Physical Geology, the Scenery of Scotland viewed in Connection 

 with its, Archibald Geikie, F.R.S., Prof. A. H. Green, 

 F.R.S., 553 



Physical Society, 22, 94, 142, 191, 262, 2S8 



Physics : Experimental, some Applications of Dynamical Prin- 

 ciples to Physical Phenomena, Prof. J. J. Thomson, F.R. S., 

 45 ; Experiments on Relation between Curve of Distension of 

 Elastic Tubes and Rate of Pulse-wave in same, Dr. Grunmach, 

 48 ; on the Method of determining Specific Weight of Bodies by 

 weighing them in Water, Dr. Sommer, 216 ; on Figures of 

 Equilibrium of Rotating Masses, Prof. C. H. Darwin, F. R. S., 

 358 ; on Coefficient of Self-induction of Two Bobbins com- 

 bined in Quantity, Maneuvrier and Ledeboer, 432 



Physics, Elementary Practical, Prof. Balfour Stewart, F. R. S., 

 and W. W. Haldane Gee, 241 



Physics, Questions on, Sydney Young, 293 



Physiology : Experiment for determining the Coefficient of 

 Nutritive and Respiratory Activity of the Muscles at Work 

 and in Repose, Chauveau and Kaufmann, 23 ; Outlines of 

 Physiology, T. Wesley Mills, 28 ; on the Termination of 

 Nerves in the Liver, A. B. Macallum, 69 ; M. C. Quinquaud's 

 Investigations of the Influence of Baths on Respiration and 

 Nutrition, 89 ; Anatomical Researches on the Physiology of 

 the Spinal Ganglia, Dr. Joseph, 120 ; Researches on Reaction- 

 time for Stimulation and Inhibition, Dr. Gad, 168 ; the Res- 

 piratory Centre in Medulla Oblongata, Dr. Loewy, 168 ; 

 Physiological Selection, H. K. Rusden, 268 ; Dr. Geo. J. 

 Romanes, F.R. S., 341 ; Physiological Society, 287; Dr. 

 Goldschneider's Experiments on Reaction-time of Perception 

 of Temperature, 288 ; Elements of Physiological Psychology, 

 Geo. T. Ladd, 290 ; the Relations between Chemical and 

 Mechanical Work of Muscular Tissue, A. Chauveau, 382, 

 408 ; Researches on the Movements of the Heart, Dr. Martins, 

 383 ; Illustrations of the Topography of Sense of Temperature, 

 Dr. Goldschneider, 383 ; Respiratory Reflexes originating in 

 Nasal Mucous Membrane, Dr, Sandmann, 384 ; Lectures on 

 the Physiology of Plants, Julius von Sachs, 361 ; J. L. Prevost 

 and Paul Bmet on the Physiological Action of Cytisus 

 laburnum, 504 



Phytophagous Larvae and their Surroundings, Further Experi- 

 ments upon the Colour- Relation between, E. B. Poulton, 594 



Picheney (M.), Researches on the Bovine Origin of Scariatina, 

 624 



Pickering (Prof. Edward C.) : on Delicate Calorimetrical Ther- 

 mometers, 22 ; Photographic Study of the Stellar Spectra, 

 31 ; Annals of the Astronomical Observatory of Harvard 

 College, 388 ; Magnitudes of Nautical Almanac Stars, 401 ; 

 Wedge Photometer, 477 ; New Forms of Construction of 

 Object-Glasses intended for Stellar Photography, t;62 



Pickering (W. H.), Total Solar Eclipse of 1886, 308 

 Pictographs, North American, Francis Galton, F.R.S \^<, 

 Picton (Harold), Thought without Words, 124 

 Pictorial Geography of the British Isles, Mary E. Palgrave, 



Pig and Kitten, 341 



Pigeons, Sparrow Chasing, W. Harcourt Bath, 4 

 Pigeons on the Wing, Attitudes of, M. Marev, 192 

 Pilot Charts, 617 



Pioneering in New Guinea, Rev. Jas. Chalmers, 255 

 Pisciculture :Thuringian Fisheries Union, 160 ; Salmon Fry at 

 Malvern Wells, 431 ^ 



^'1!„^!TT <?^"^''^^); Observations on Recent Explorations made 



by, at Rush more, J. G. Garson, 600 

 Plague in the Caucasus, J. D. Tholozan, 504 

 Plane of Transverse Section, on the Influence of a, on the 



F.rS.^^andTtot^'sts^^ '^^"^ ^^^' ^^^ ^' ^' ^-^"^' 

 Planets : New Minor, 161 ; Herr Palisa. 1:27 • Dr Petpr<: cRS • 



?\K--e. 616; No. 266, 138; Orbit^ff 'the ^rpfn'e^ 



Euchans, Dr. W. Valentiner, 77 

 VuT2' 11^^'°}?^ of Lectures on the, Julius von Sachs, 361 

 \>\ V' ^'°' Colours of. Lord Rayleigh, 391 

 1 ayfair (Sir Lyon), on Technical Education, 16 

 Pleiades : Relative Positions of the Principal Stars in the, Dr 



W. L. Elkin, 232 ; Yale College Measurement of the 



Pleiades, A. M. Gierke, 372 

 Pleurothallis ornatus, Rchb. f., on a Point of Biological Interest 



in the Flowers of, F. W. Oliver, 303 

 Pliocene Beds of St. Erth, Cornwall, Robert George Bell, 591 

 Pliocene Deposit of Marine Shells near Lattakia, and a Similar 



Deposit in the Island of Zante, on the, Dr. Geo, E. Post, 



245 

 Pneumonia, Acute, M, Jaccoud, 23 

 Polar Globules, on the Signification of the. Prof. August 



Weismann, 607 

 Polarization of Copper, on the, M. Krouchkoll, 119 

 Polarization, Electrolytic, Experiments on Electrolysis and, 



W. W. Haldane Gee, Henry Holden, and Chas. H. Lees, 



550 

 Pole (Dr. William, F.R.S.), Music in Nature, 343 

 Pollacci (Prof.), Sulphate of Copper as a Remedy against Vine- 

 Mildew, 262 

 Polyakoff (Ivan), Obituary Notice of, 2o5 

 Polyzoaofthe C,^a//^w^i?r Expedition, Geo. Busk, F.R. S., 74 

 Porphyritic Structures, on the Occurrence of, in some Rocks of 



the Lizard District, Howard Fox and Alex. Somervail, 590 

 Porphyry Quarries of Egypt, Account of a Recent Visit to the 



Ancient, W. Brindley, 595 

 Porro (Dr. F. ), a Brilliant Meteor, 154 

 Post (Dr. Geo. E.), on the Pliocene Deposit of Marine Shells 



near Lattakia, and_a Similar Deposit in the Island of Zante, 



245 

 Postal Tube (Aerial) between Dover and Calais, Proposed, 



Arnaudeau, 349 

 Poulton (E. B.), the Secretion of Pure Aqueous Formic Acid 



by Lepidopterous Larvse for the Purposes of Defence, 593 ; 



Further Experiments upon the Colour-Relation between 



Phytophagous Larvse and their Surroundings, 594 ; Further 



Experiments upon the Protective Value of Colour and Mark- 

 ings in Insects, 594 

 Prantl (Dr. K.) and Dr. A. Engler's Work on Die Natiirlichen 



Pflanzenfamilien, 123 

 Pratten (Mary A.), My Hundred Swiss Flowers, 267 

 Pre-Glacial Man, Migrations of, Glaciator, 245 ; Dr. Henry 



Hicks, F.R.S., 269, 599 

 Prehistoric and Ethnological Museum of Rome, Additions to, 



the, Dr. G. A. CoUini, 526 

 Pre-History of the North, based on Contemporary Memorials, 



J. J. A. Worsaae, Dr. John Evans, F.R.S., 97 

 Precious Stones in Nature, Art, and Literature, S. M. Burnham, 



482 

 Pressure, Atmospheric, Colliery Explosions and, Hy. Harries, 



437 

 Pressure, Boiling Point and, M. F. O'Reilly, 4 

 Pressure, some Effects of, on the Sedimentary Rocks of North 



Devon, J. E. Marr, 591 

 Pressure, Temperature and. Maxwell Hall, 197 

 Preston, Proposed Technical School for, 254 

 Preston (Rev. S. A.), Natural History in Schools, 209 

 Prestwich (Rev. Joseph), the Glacial Period and the Antiquity 



of Man, 165 

 Prevost (J. L.) and Paul Binet, Cytisus laburnufji, Physiological 



Action of, 504 

 Preyer (Prof.), the Locomotor System of Star-fish, 20 

 Price (John), Death of, 614 

 Prince (Edward E.), Floating Eggs, 294 

 Princeton Eclipse Expedition, the. Prof. C. A. Young, 547 

 Prinz (W.), on a Specimen of Crystalline Iron-glance formed on 



some Old Iron Weapons, 503 

 Pritchard (Prof., F.R.S. ), on the Nature of the Photographic 



Star-Disks and the Removal of a Difficulty in Measurements 



of Parallax, 523 

 Prjevalsky (General), Gold Medal presented to, 6t, 

 Proceedings of the Linnean Society of New South Wales, 95 

 Proctor (R. A.) : First Steps in Geometry, a Series of Hints for 



the Solution of Geometrical Problems with Notes on Euclid, 

 Useful \Vorking Propositions, and many Examples, 602 ; Easy 



Lessons in the Differential Calculus indicating from the Outset 



the Utility of the Processes called Differentiation and Integ- 

 ration, 602 

 Progress of the Scottish Universities, M.A. and Medicus, 294 

 Projectiles in Motion, Photography of, no 

 Propane, on some Derivatives of, C. Winssinger, 116 

 Proper Motion of LI 26481, J. Tebbutt, 564 , 



