Nature, } 
Dec, 18, 1902 
L[ndex 
XXXII 
Papuan Gulf, on the Sacred Initiation Ceremonies Undergone 
by the Lads of the, Rev. J. H. Holmes, 664 
Parallels, a Method of Treating, Dr. S. W. Richardson, 223 ; 
W. R. Jamieson, 576 
Parel (Very Rev. G.), Last Days of St. Pierre, 372 
Parhelion, Sun-Pillar and, Prof. Grenville A. J. Cole, 32 
Paris: Paris Academy of Sciences, 23, 47, 71, 95, 119, 143, 
167, 192, 216, 240, 263, 288, 312, 335, 360, 383, 408, 432, 
456, 488, 516, 544, 572, 623. 648, 671; Paris Geographical 
Society’s Prizes for this Year, 135; Forestry Exhibition in 
Paris in 1900, J. S. Gamble, F.R.S., 283 ; M. Faye and the 
Paris Observatory, Wilfred de Fonvielle, 343 
Parks (G. J.), Heat Evolved or Absorbed when a Liquid is 
Brought in Contact with a Finely Divided Solid, 262 
Parsons (Hon. C. A.), Steam Turbines, 643 
Parsons (J.), Evidence of a ‘‘Seiche” ona Scottish Loch, 192 
Partial Differentiation, Symbol for, Prof. John Perry, F.R.S., 
53, 271, 520; Dr. Thomas Muir, 271, 520; A. B. Basset, 
F.R.S., 576 
Pasteur, Statue to, at Déle, 377 
Patagonia, the Larger Mammals of, Hesketh Prichard, 46 
Pathology: Some Thoughts on the Principles of Local Treat- 
ment in Diseases of the Upper Air Passages, Sir Felix Semon, 
149; Pathologie Générale et Expérimentale, Les Processus 
Généraux, A. Chantemesse and W. W. Podwyssotsky, 363 ; 
Death of Prof. Rudolph Ludwig Karl Virchow, 483 ; Obituary 
Notice of, 551; Recent Studies of Immunity with Special 
Reference to their Bearing on Pathology, Prof. Welch, 611 
Paton (Lewis Bales), Syria and Palestine, 517 
Patten (Prof. William), Structure and Classification of the 
Tremataspidz, 184 
Patterson (Dr. J. Hume), on the Causes of Salmon Disease, 640 
Patterson (Dr. T. S.), Influence of Solvents on the Rotation of 
Optically Active Compounds, 191 
Pau, Earthquake at, 484 
Pauw (L. F. de), the Iguanodons of Bernissart, 231 
Pax (F.), Grundziige d. Pflanzenverbreit i. d. Karpathen, 27 
Pearl Fisheries in the Gulf of Manaar, Prof. Herdman, 486 
Pearson (Prof. Karl, F.R.S.), Astronomy in the University of 
London, 174; on the Correlation between the Barometric 
Height at Stations on the Eastern Side of the Atlantic, 311 
ee (William Henry), the Hepaticz of the British Isles, 
355 
Peary Arctic Expedition, Return of the, 542 
Peat, Use of, in Sweden as a Substitute for Coal for Steam 
Engines, 256 
Pechmann (Prof. H. von), Death and Obituary Noticg of, 37 
Pécoul (M.), Quantitative Examination of Atmospheric Air, 308 
Peddie (Dr. W.), Use of Quaternions in the Theory of Screws, 
239 
Pendulum, the Compound, S. A. F. White, 22 
Penning (William Henry), Death and Obituary Notice of, 15 
Pennsylvania, Anthracite Mining in, Peter Roberts, 50 
Penrose (Francis Cranmer), Occultations of Stars and Solar 
Eclipses, 149 
Penrose (G.), Series of Meteorological Tables at Truro, 611 
Perimeter of an Ellipse, Formula for the, Thomas Muir, F.R.S., 
174 
Perkin (A. G.), Constituents of Gambia and Acacia Catechus, 
214 
Perkin (Dr. F. Mollwo), Enzymes and their Applications, J. 
Effront, 197; the Influence of Education upon Trade and 
Industry, 442; Trade Statistics, 550 
Perkin (W. H., jun.), an Introduction to Chemistry and 
Physics, 52 
Perkins (H. F.), Degeneration-process in Larval Ccelenterates 
of the Genus Gonionema, 612 
Perrine (Prof.), Search for an Intra-Mercurial Planet during the 
Total Solar Eclipse of 1901, 662 
Perrine, Photograph of Comet 4 1902, 638 
Perrine’s Comet 1902 4, Observations of, 558 
Perrot (E.), Aznheliba, 120 
Perrot (F. Louis), on the Formation of Liquid Drops and the 
Laws of Tate, 544, 672 
Perry (Prof. J., F.R.S.), the Misuse of Coal, 30; Symbol for 
Partial Differentiation, 53, 271, 520; Opening Address in 
Section G at the Belfast Meeting of the British Association, 
530; the Training of Engineers, 644; Science and Literature, 
645 5 Matriculation Requirements in Scottish Universities, 
54 
Persei, Nova, 282 ; Observations of, 233; Discoverer of Nova 
Persei, 282 ; Spectrum of, Prof. Campbell and Mr. Wright, 
425; the Changes in the Nebula Surrounding Nova Persei, 
Prof. Lewis Bell, 426 
Perseids: Photographs of the, in 1901, 309; Perseid Meteoric 
Shower of 1902, the, W. F. Denning, 406 ; Radiant Point of 
the Perseids, Prof. Alexander Graham Bell, 440 
Persia, Ten Thousand Miles in, or, Eight Years in Iran, Major 
Percy Molesworth Sykes, 418 
Persulphuric Acids, Prof. Henry E. Armstrong, V.P.R.S., and 
J. Martin Lowry, 45 
Petavel (Mr.), on the Production of a Standard Light, 618 
Petch (T.), Rearrangement of Euclid i., 1-32, 7 
Petroleum Districts, Spring Waters from, Contain no Sulphates, 
Prof. Hofer, 256 
Petroleum Formation, Chemical Theory of, Paul Sabatier and 
J. B. Senderens, 138 
Pharmacology: Pharmacology at the British Medical Associa- 
tion,353; Factors which Tend to Render Medicines Ineffective 
or Productive of Unusual Effects, Sir Lauder Brunton, 353 ; 
Therapeutic Value of Alkaline Waters of the Vichy Type, 
Prof. Liebreich, 353 ; Synthetic Purgatives, Prof. Tunnicliffe, 
3533 Therapeutic Value of Arsenic, Dr. Ralph Stockman, 
353 
Philadelphia, Report of the Zoological Society of, 159 
Phillips (Theodore), a Dark Spot on Jupiter, 4or 
Phillips (W. B ), the Coal, Lignite and Asphalt Rocks of Texas, 
379 
Philosophy : the Basis of Social Relations, D. G. Brinton, 221 ; 
the Criterion of Scientific Truth, G. Shann, 221; Die 
Philosophie August Comte’s, L. Levy Bruhl, 369 ; Philosophy 
of Conduct, G. T. Ladd, 389; Death of Prof. J. J. Hummel, 
511; Helmholtz on the Value of the Study of Philosophy, 
B. Branford, 550 
Phisalix (C.), Poison of the Toad, 288 
Phosphorus versus Lime in Plant Ash, Dr. P. Q. Keegan, 655 
Photography : Photographic Apparatus, Making and Repairing, 
F. W. Cooper and D. W. Gawn, 4; the Lens, a Practical 
Guide to the Choice, Use and Testing of Photographic 
Objectives, T. Bolas and George E. Brown, 75; New Fluid 
Lens, Dr. E. F. Griin, 135 ; Stereoscopic Method of Photo- 
graphic Surveying, H. G. Fourcade at the South African 
Philosophical Society, 139; Employment of Urine in the 
Development of the Photographic Plate, R. A, Reiss, 144; 
Photography as an Aid to the Surveyor, Arthur O, Wheeler, 
206; Photography as Applied to Architectural Measurement 
and Surveying, J. Bridges Lee at Society of Arts, 235 ; Dis- 
tribution of the Stars in the Cape Photographic Durch- 
musterung, Dr. Downing, 238; Reduction of Measures of 
Swif’s Comet (a 1899) from Photographs taken with a 
Portrait Lens of 30-inch Focus and 5-inch Aperture, Mr. 
Filon, 238 ; Reductions of Photographs of Eros for the De- 
termination of Solar Parallax, Mr. Hinks, 238; Influence of 
the Photographic Magnitude of Stars upon the Scale of Re- 
duction of a: Negative, Prosper Henry, 240; Photographic 
Magnitude of Stars, Prosper Henry, 282; Photographs of 
the Perseids in 1901, 309; Photograph of Comet 4 1902 
(Perrine), 638; the Watkins Manual of (Photographic) Ex- 
posure and Development, Alfred Watkins, 245; ‘‘Cooke”’ 
Photographic Lenses, Method by which the Focal Length 
may be Reduced, Messrs. Taylor and Co., 280; Photography 
of Diffraction and Polarisation Effects, W. B. Croft, 354; 
the Dictionary of Photography, E. J. Wall, 368; the Prin- 
ciples of Simple Photography, F. W. Sparrow, 389; Birds 
in the Garden, G. Sharp, 444; P.O.P. (the Use of Silver 
Printing-out Papers), A. Horsley Hinton, 519; the Scientific 
and Technical Exhibits at the Royal Photographic Society’s 
Exhibition, 582; Parallax Stereogram, F. E. Ives, 582; 
Photograph of the Spectrum of the Arc Light, Edgar Senior, 
582 j Method of Copying Engravings by Superposition, Hot 
Player, 582 
Photometric Tests of the Bremer Arc Lamp, M. Laporte and 
Prof. Wedding, 611 
Physic Garden, the Chelsea, 321 
Physical Geography, Margaret A. Reid, 653 
Physics : a Laboratory Manual of Physics, H. Crew and R. R. 
Tatnall, 4; Physical Society, 21, 70, 118, 262; Prisms and 
Plates for Showing Dichromatism, Prof. R. W. Wood, 31 ; 
Interference of Sound, the Right Hon. Lord Rayleigh, 
F.R.S., at the Royal Institution, 42; the Indices of 
