XXvi 
Index 
Nature, 
December 14, 1899 
Panama, Climatology of, General H. J. Abbot, 427 
Panichi (L.), Action of Quinine on Malaria Parasite, 576 
Parallax, Stellar, Osten Bergstrand, 538 
Parasite, Malarial, the Present Position of the Investigation of 
the, 439, 546 ae ; 
Parasites of Malaria, Life-history of the, Major Ronald Ross, 322 
Parent-Rock of the South African Diamond, the, Prof. T. G. 
Bonney, F.R.S., 620 
Paris Academy of Sciences, 22, 47, 71, 95, 119, 143, 167, 192, 
215, 239, 263, 288, 312, 336, 360, 384, 408, 432, 456, 488, 
516, 540, 564, 588, 612, 635 
Paris, Higher Education in, A. T. Simmons, 10 
Paris Observatory, the, 402 
Park (James), Rhyolites of Hauraki Goldfields, 143 
Parkinson (John), Intrusion of Granite into Diabase at Sorel 
Point, Jersey, 191 
Parmentier (F.), Supposed Fluorine in Mineral Waters, 48 ; 
Analysis of Croizat Spring Water, 168 
Parsons (F. C.), Myology of Axomalurus, 118 
Parthenogenesis, Inheritance in, E. Warren, 142 
Particle, a Treatise on the Dynamics of a, Edward John Routh, 
F.R.S., 74 
Patagonia, the Ground Sloth of, Dr. R. Hauthal, 512 
Patagonia, Note on the Discovery of A/zo/anza and of Glosso- 
thertum (Neomylodon) in, Dr. Francesco P. Moreno, 396 
Pathology: Die Bedeutung der Reize fiir Pathologie und 
Therapie im Lichte der Neuronlehre, Dr. A. Goldschneider, 73 
Patten (Mr.), the Nest of the Little Tern, 512 
Payta, the Driest Spot in the World, Prof. D. G. Fairchild, 624 
Peachey (S. J.), the Enantiomorphously related Tetrahydro- 
quinaldines, 71 
Pearls, the Fresh-water, of America, 150 
Pearls, the Formation in eleagrina margarztifera of, Leon 
Dignet, 240 
Pearson (Prof. Karl, F.R.S.), Study of Variability and Corre- 
lation of Hand, 91 ; Inheritance of Longevity in Man, 356 
Peary’s (Lieut.), Explorations, Results of, 595 
Péchard (E.), Oxidising Power of Alkaline Periodates, 48 
Pedley (R. Denison), the Hygiene of the Mouth, 172 
Peirson (H.), a Cross-bred Orchid, 485 
Pellat (H.), the True Polarisation of Dielectrics placed in 
Electric Field, 143 
Pendlebury (W. H.), Dover Meeting of the British Association, 
180, 370, 420, 495 
Penrose (F. C., F.R.S.), Orientation of Greek Temples, 213 
Penycuik Experiments, the, Prof. J. Cossar Ewart, 272 
Perception of Musical Tone, the Boyle Lecture on the, Prof. 
McKendrick, 163 
Peripatus in the Malay Peninsula, Prof. Edward B. Poulton, 
F.R.S., 591 
Perkin (A. G.), Colouring Matter of Cotton Flowers, 214 
Perkin (W. H., jun.), Action of Ethylene and Trimethylene 
Dibromides on Sodium Derivative of Ethylic Cyanacetate, 
118 ; the Synthesis of Camphoric Acid, 214 
Perot (A.), an Intense Source of Monochromatic Light, 71 
Perrier (Remy), Cours Elémentaire de Zoologie, 364 
Perrine (Prof. C. D.), Comet 1899 a (Swift), 231 
Perry (Prof. John, F.R.S.), the Entropy Diagram and _ its 
Applications, J. Boulvin, 3 ; the Life of a Star, 247 
Perseid Meteoric Shower, the Recent, W. F. Denning, 377 
Perturbations, Magnetic, of the Spectral Lines, Prof. Thomas 
Preston, F.R.S., 17 
Peterkin (J. D.) Action of Nitric Oxide on Nitrogen Peroxide, 
71 
Peters (C. A.), Determination of Tellurous Acid in presence of | 
Haloid Salts, 455 
Peters (Dr. Karl), Cyclopean Ruins in Portuguese Africa, 280 
Peterson’s (Dr.), Experiments in the Cattegat, with the Mark- 
ing and Measuring of Plaice in order to determine Distribu- 
tion and Growth, Sir John Murray, 631 
Petroleum in Canada, Dr. G. M. Dawson, 159 
Pettigrew (William Frank), a Manual of Locomotive Engineer- 
ing, 193 
Pfeiffer (Prof.), Mixed Tubercular Infection, 109 
Philharmonic, the New, Musical Pitch, A. J. Hipkins, 421 
Philippine Islands and elsewhere, the Negritos ; the Distribu- 
tion of Negritos in the, Dr. A. B. Meyer, Prof. A. C. 
Haddon, F.R.S., 433 , 
Philippines and Round About, the, Major G. J. Younghusband, 
149 
Phillips (A. H.), the Trap of Rocky Hill, 612 
Phillips (C. E. S.), on the production in Rarefied Gases of 
Luminious Rings in Rotation about Lines of Magnetic Force, 
586 
Philosophy : the Philosophy of Memory and other Essays, D. T. 
Smith, 51; Die Welt als That, J. Reinke, 490 
Phisalix (C.), Echidnase, 288 
Phosphorescent Earthworms, Prof. W. Blaxland Benham, 591 ; 
a Note upon, Frank E. Beddard, F.R.S., 52 
Phosphorescent Spectra, Photographic Researches on, Sir 
William Crookes, F.R.S., 317 
Phosphorus in the Manufacture of Lucifer Matches, the Use of, 
54 
Photography : New Photographic Researches on Phosphorescent 
Spectra, Sir W. Crookes, F.R.S, 44 ; Photographic Researches 
on Phosphorescent Spectra, on Victorium, a New Element 
associated with Yttrium, Sir William Crookes, F.R.S., 317 3 
the: Diffraction Process of Colour-Photography, Prof. R. W. 
Wood, 199; Pictures produced on Photographic Plates in the 
Dark, Dr. W. J. Russell, V.P.R.S., 208 ; Animals in Motion, 
E. Muybridge, 220; Wave or Billow Clouds, 235; Stellar 
and Nebular Spectra with Concave Grating, 302 ; Photography 
of Nebulz and Star Clusters, 330; Observation of Fringes 
in Development of Daguerre Plates with Wedge-shaped 
Silver Iodide Layers, O. Wiener, 383 ; Ribbon and Dark 
Lightning, 423; Dark Lightning Flashes, Dr. William J. S. 
Lockyer, 391, 570; Prof. Wood, 460; Shelford Bidwell, 
591; Remarkable Lightning Flashes, C. E. Stromeyer, 520 ; 
Prof. Henry Stroud, 520; T. W. Backhouse, 520; F. H. 
Glew, 520; Cordoba Photographs of Star-Clusters, 487 ; the 
New Lunar Photographic Atlas, 491 : the Royal Photographic 
Society’s Exhibition, 539; Mr. J. H. Player’s Absorption 
Copying Process, 539; Trichromatic Light Filters, E. S. 
Shepherd, 539; Messrs. Watson and Sons’ ‘‘Kromaz” 
Colour. Apparatus, 539; the Sensitiveness of Polished Silver 
to Light, General Waterhouse, 539; Lectures at the Royal 
Victoria Hall, Dr. W. J. Russell, F.R.S., 545; Living 
Pictures, H. V. Hopwood, 567; Astronomical Camera 
Doublets, 578; the Process Year-Book for 1899, 590; 
Photography with Telephoto Lens, D. L. Elmendorf, 622 
Photometer, the Flicker, O. N. Rood, 516 
Photometry of the Pleiades, G. Miiller and P. Kempf, 429 
Physics: the Free Expansion of Gases, Memoirs by Gay-Lussac, 
Joule, and Joule and Thomson, J. S. Ames, 7 ; Polarisation 
Experiment, J. Cook, 8; the National Physical Laboratory, 
25, 373, Recueil de données Numeriques publié par la Société 
francaise de Physique Optique, H. Dufet, 28; Vapour 
Pressure of Solutions of Volatile Substances, Dr. Lehfeldt, 
70; Physical Society, 70, 118, 166, 213 ; Elementary Physics 
and Chemistry, Prof. R. A. Gregory and A. T. Simmons, 78 ; 
Impact with a Liquid Surface, studied by Instantaneous 
Photography, A. M. Worthington, F.R.S., and R. S. Cole, 
93; Experiments on Fatigue of Metals, J. O. Thompson, 
86 ; Simple Verification of Archimedean Principle for Gases, 
P. Métral, 87 ; the Jubilee of Sir George Gabricl Stokes, 109, 
125 ; Wiedemann’s Annalen, 117, 212, 383, 456, 540, 635 ; the 
Height of the Aurora, Prof. Cleveland Abbe, 130; Expan- 
sion of Solids by Heat, Horace Darwin, 149; Historical 
Note on Recalescence, Prof. W. F. Barrett, F.R.S., 1733 
Prof. Sir W. C. Roberts-Austen, K.C.B., F.R.S., 173 ; Outlines 
of Physical Chemistry, A. Reychler, 197 ; Physical Measure- 
ments of Public School-boys, 198; the Diffraction Process of 
Colour-Photography, Prof. R. W. Wood, 199 ; School Labora- 
tory Plans, Hugh Richardson, 199; A. E. Munby, 222, 292; 
T. S. Dymond, 245; Die physikalischen Erscheinungen und 
Krafte, Prof. Dr. Leo Grunmach, 221 ; Physical Measurements 
in Anthropology, 234; Comparative Efficiency. as Condensa- 
tion Nuclei of Positively and Negatively charged Ions, C. T. 
R. Wilson, 238; the Life of a Star, Prof. J. Perry, F.R.S., 
247; Dr. T. J. J. See, 519 ; on the Deduction of Increase- 
Rates from Physical and ‘other Tables, Prof. J. D, Everett, 
F_R.S , 271, 365; Prof. C. Runge, 365 ; Liquid Air and the 
Liquefaction of Gases, T. O'’Conor Sloane, 268 ; Death of 
Dr. Eugen Ritter von Lommel, 277 ; Impressions of America, 
T. C. Porter, 291 ; the Rede Lecture: the Wave Theory of 
Light, ‘its Influence on Modern Physics, Prof. A. Cornu, 
292; Kanon der Physik, Felix Auerbach, Prof. Arthur 
Schuster, F.R.S., 3143 Physics, Experimental and Theo- 
retical, R. H. Jude and H. Gossin, 3393; Physique et Chimie 
Viticoles, A. de Saporta, 364; Physical Investigation of ~ 
