SufrpUment to Natnrii,~\ 

 June I, 189.; J 



Index 



r Centre, Dr. Ad. Loewy, 144 ; Sensation of Warmth on 

 immersing H incl in Carbon Dioxide, Dr. R. du Bois Ray- 

 mond, 144 ; Elements of Human Physiology, E. H. Starling, 

 146 ; the Thyroid Gland (Experiments on Cats), Dr. J. 

 Lorrain Smith, 167; Human Physiology, the Blood- 

 Vessels of the Skin in dilTerent Parts, Sij;nor Miner- 

 vine, 254 ; Animal Physiology, on the Anatomy of 

 o{ Pentasloinum teteliusculum. Prof. W. Baldwin Spencer, 

 260 ; on the Minute Structure of the Gills of Pahtmonetes 

 varians, Edgar J. Alien, 261; on the Development of the 

 Optic Nerve of Vertebrates and the Choroidal Fissure of 

 Embryonic Life, Richard Assheton, 261 ; on the Develop- 

 ment of the G-'nitai Orj^ans and Ovoid Gland, Axial and 

 Ahoral Sinuses in Aniphiura squamata, together with some 

 Remarks on Ludwig's Haemal System iu this Ophiurid, 

 E. W. MacBride, 261 ; on a New Genus and Species of 

 Aquatic Oligochreta belonging to the Family Rhinodrilidae 

 found In England by W. B. Benham, 261 ; Prof. Exner on 

 the Innervation of the Crico-Thyroid Mu.^cle in Rabbits and 

 Dogs, 287 ; Photography of Microscopic Objects which 

 when placed in a Stereoscope presented an Appearance of 

 Solidity, Dr. Hausemann, 287 ; Custom of Civilised Races 

 of Antiquity to establish Themselves in Dry Districts, Prof. 

 Hilgard, 287 ; Berlin Physiological Society, 287, 552 ; 

 Microscopic Researches on the Contractility of the Biood- 

 Vessels, M. L. Ranvier, 312; Vegetable Physiology, Re- 

 searches on the Localisation of the Fatty Oils in the Germina- 

 tion of Seeds, M. Eugene Mesnard, 312; on the Pepto- 

 saccharifiant Action of the Blood and the Organs, M. R. 

 Lepine, 335 ; the Pancreas and the Nervous Centres control- 

 ling the Glycemic Function, Prof. Kaufmann, 479; the Pan- 

 creas and the Nerve - Centres regulating the Glycemic 



• Func ion ; Experimental Demonstrations derived from a 

 Comparison of the Effects of a Removal of the Pancreas with 

 those of Bulbary Section, MM. A. Chaveau and M. Kauf- 

 mann, 528 ; Four Experiments on Nutrition, Dr. von 

 Noorden, 504 ; on the Origin of the Mammalian Hair, M. 

 Weber, 504 ; on Numerical Variation in Digits in Illustration 

 of a Principle of Symmetry, W. Bateson, 503 ; Experiments 

 on the Nutrition of Fasting Mjn, Dr. J. Munk, Prof. Zuntz, 

 Dr. Vogelius, 552; the Formation of Sweat, Dr. Lewy-Dorn, 

 600 ; Survival after the Successive Section of both the 

 Branches of the Vagi, M. C. Vanlair, 621 ; on the Digestion 

 of the Coe'enterata, Marcelin Chapeaux, 621 



Piccioli (Signor), Biological Relations between Plants and 

 Snails, 23 



Pickering (Prof. E. C), the Harvard College Observatory, 

 304, 403 ; Jupiter and his Satellites, 518 



Pickering (Prof. Spencer, F.R.S.), Osmotic Pressure, 175 



Pickering (S. U.), Refractive Indices and Magnetic Rotations 

 of Sulphuric Acid Solutions, 165 ; Some Alkylamine Hy- 

 drates, 165 ; Isolation of two predicted Hydrates of Nitric 



: Acid, 238 ; the Hydrates of Hydrogen Chloride, 479 



Pickeriny (Prof. W. H.j, the Recent Opposition of Mars, 235 



Pictet (Prof. Raoul), Sarasin and de la Rive's Experiments in 

 Measuiement of Rate of Herz Electric Waves, 336 



Pioneers of Science, Oliver Lodge, F. R.S.. 268 



Piimen, Coal Pits and, R. Nelson Boyd, 481 



Place (M. dc), the Schiseophone, 2j 



Place-Names, African, the Orthography of, 400 



Place-Names of German Protectorates, Official Rules for 

 Spelling of, 89 



Placet (Em.), Preparation of Metallic Chromium by Electro- 

 lysis, 144 



Planets, Atmospheres of, 18 



Planets, the Light of, 64 ; John Garslang, 77 



Planetary Nebula;, Spectra of, and Nova Aurigre, M. Eugen 

 Gothar.l, 352 



Planets, Minor, 352, 457 



Planet Mars, the, Camille Flammarion, William J. S. Lockyer, 

 553 



Plant (James). Death of, 60 



Plamamour (P.), Observations of Earth Oscillations, 254 



Plants, Climbing, Dr, H. Sohenck, W. Bottin' Hemsley, 

 F.R.S., 514 



Plants, the P'ood of, A. P. Lauri •, 556 



Playfair (Lor<l), on Scientific Education, 301 



Piayfair ( Lieut. -Colonel Sir R. Lambert), Morocco, 298 



Pliocene Geology, Difficalties of, Sir Henry H. Howorth, 150, 

 270 



Plon, Forschungsberichte aus der Biologischen Station zu. Dr. 



Otto Zaccharias, 461 

 Pluvinel (M. de la Baume), Eclipse of April 16, 1893, 281, 



304 ; Eclipse Photography, 326 

 Plymouth Marine Bi )l..gical Siation, the Week's Work of the, 



398, 424, 451, 472, 497, 518, 546. 565, 589, 616 

 Plymouth Marine Biological Association, Drcilging Work, 375 

 Pocock (R. J.), Phosphorescence in Centipedes, 545 

 Podolia, a Curious Mountain Goup in, 617 

 Poincare (H.), Theorie Mathemaiique de la Lumiere, A. B. 



Basset, F.R.S., 386 

 Polakowsky (Dr. H.), the Boundaries of Costa Rica and 



Nicaragua, 257 

 Pola:isation of Light : Use of Half-Shade Polarime'ers, Dr. 



Luramer, 312 ; Prof Goldstein's Experiments, 312 

 Pole (Dr. W.), Colour Blindness, 335 

 Polecat not Extinct in Cardiganshire, J. W. Salter, 450 

 Pollard (W.), a Brilliant Meteor, 247 

 Polynesia; the Tokelaus, 423 

 Polynesian Ornament-Forms, Mythographio Origin of, Dr. H. 



C. March, 239 

 Ponza, Earthquake in, 86 



Pope (W. J.), Sulphonic Derivatives of Camphor, 405 

 Popular Lectures on Physical Subjects, Dr. James L. Howard, 



361 

 Port Erin (Isle of Man) Marine Biological Station, 515 

 Porter (Prof. J. G.), Motion of the Solar System, 41 

 Potato Disease, Observations on the. Dr. J. Bohm, 254 

 Potato as a Diagnostic Agent in Bacteriology, Herr Krannhals, 



545 

 Potential, Discovery of the, Oltavio Zanotti Bianco, Dr. E. 



J. Routh, F.R.S., 510 

 Potsdam Magnetic Observatory, Improvements in Registration 



of Needle's Variations, Herr Eschenhagen, 544 

 Pottery Glazes, W. P. Rix, 396 

 Pottery, Nicobar, E. H. Man, 455 

 Poulton (Edward B., F.R.S.), the Volticellu: as Examples of 



Aggressive Mimicry, 28 ; the Vohicella as alleged Examples 



of Variation "almost unique among Animals," 126; Soot- 

 Figures on Ceilings, 608 

 Pound, Imperial Standard, Decrease in Weight of, 86 

 Power Distribution, Electric Lighting and, W. Perren May- 

 cock, 269 

 Praeger (R. L.), What is the True Shamrock ? 302 

 Prantl (Dr. Karl), Death and Obituary Notice of, 495 

 Preece ( W. H., F. R.S.), the Growth of Electrical Industry, 327 ; 



on Lightning Protection, Prof. Oliver Lodge, F.R.S., 536 

 Prehistoric Anthropology ; the Quaternary Deposits in Russia 



and their Relatiims to the Finds resulting from the Activity 



of Prehistoric Man, S. Nikiiine, 523 

 Prehistoric Archpeology and Anthropology, the International 



Congress of, 523 

 Prehistoric Drawings on Limestone, Discovery near Schaff- 



hausen of, J. Naue, 279 

 Prehistoric Ethnography of Central and North-East Russia, 



J. Smirnov, 524 

 Prehistoric Peoples, Manners and Monuments of, Marquis de 



Nadaillac, 316 

 Prescot Watch Factory, the ; Address by Lord Kelvin, 279 

 Preservation of the Native Birds of New Zealand, 394 

 Pressure, Osmotic, J. VV. Rxlger, 103; Prof. Spencer Picker- 

 ing, F.R.S , 175 

 Prince (Prof. Edward), appointed Commissioner of Fisheries for 



Canada, 37 

 Printing Mathematics, W. Cassie, 8 ; Dr. M. J. Jackson, 227 

 Prior (G. T.), the Rare Silver Minerals Xaiiihoconite and 



Rittingerite, 70 

 Pritchard (Prof. Chas., F.R.S.), Lord Kelvin, no 

 Prizes, Astronomical Journal, 282 

 Problems in Navigation, Graphical Solutions of, 547 

 Projectiles, Oscillation of. Experiments on Photographic Re- 

 cording of. Prof Neesen, 216 

 Projection Microscope, the Reflector with the, G. B. Buckton, 



F.R.S., 54 

 Prominences, Ultra-Violet Spectrum in, Prof. G. E. Hale, 186 

 Proper Motions, M. Deslandres, 115 

 Property : Its Origin and Development, Charles Letourneau, 



123 

 Protection, Lighning, W. II. Preece, F.R.S. , on. Prof. Oliver 



Lodge, F.k.S., 536 



