XXVlll 



Index 



r Nature, 

 L Jttne 13, 1901 



Stuart Weller, 425 ; Cretacean Sea-Urchin in Eastern 

 Sahara, M. de Lapparent, 435 : Phylogeny of European 

 Rhinoceroses, Prof. H. F. Osborn, 450 ; Creosaurus from 

 Wyoming, S. W. Williston, 481 ; Reptile Remains from 

 Patagonia, Dr. S. Woodward, 507 ; New Scottish Silurian 

 Scorpion, Palaeophortis hunteri, R. I. Pocock, 523 



Palmer (Irving O.), One Thousand Problems in Physics, 393 



" Panoram " Kodak, the, 261 



Papperitz (Dr. Erwin), die Mathematik an den Deutschen 

 technischen Hochschulen, 28 



Papiia, Album of. Types II., Dr. A. B. Meyer, R. Parkinson, 



324 



Parallax, Solar, Eros and the, 502 



Paris Academy of Sciences : 23, 51, 75, 99, 123, 147, 171, 196, 

 243, 267, 291, 316, 339, 363, 387, 411, 435, 459, 483. 507, 

 531, 556, 579, 604, 628 ; Prize List of the, 214; Proposed 

 Prizes for 1901, 241 



Paris Exhibition : Instruments of Precision at the, 61 ; E. T. 

 Warner, 107; H. Davidge, 107 ; Prof. C. V. Boys, F.R.S., 

 156; Chemical Products and Appliances at the Paris Inter- 

 national Exhibition, Prof R. Meldola, F.R.S., 179; De 

 Paris aux Mines d'Or de I'Australie Occidentale, O. Chemin, 

 440 



Parker (E. H.), China: her History, Diplomacy and Commerce 

 from the Earliest Times to the Present Day, Supp. ix. 



Parker (W. H. ), Functions of Bile as Solvent, 458 



Parkin (J.), Mannose-producing Reserve Carbohydrate from 

 Lilium Bulb, 555 



Parkinson (John), Hollow Spherulites of the Yellowstone and 

 Great Britain, 530 



Parkinson (R.), Album of Papua, Types II., 324 



Parr (G. D. A.), Practical Electrical Testing in Physics and 

 Electrical Engineering, 538 



Partial Differential Equations of Modern Mathematical Physics, 

 the, Prof. B. Riemann, Prof. Heinrich Weber, 390 



Pasteur Institute at Kasauli, the, 35 



Paton (Dr. O. N.), Dietary Studies of Edinburgh Poor, 99 



Patterson (J.), Effect of Magnetic Field on Resistance of Thin 

 Magnetic Films, 555 



Patterson (T. S. ), Influence of Solvents on Rotation of Optically 

 Active Compounds, 75 ; Preparation of Esters from other 

 Esters of Same Acid, 339 



PauUi (Dr. S.), the Pneumatic Cavities in Mammalian Skull, 13 



Pavlieek (F.), Atomic Weight of Lanthanum, 626 



Peach (B. N.), Remarkable Tertiary Volcanic Vent in Arran, 

 578 



Peach- leaf Curl, its Nature and Treatment, Newton B. Pierce, 



393 

 Peake (R. E.), on the Results of a Deep-Sea Sounding Ex- 

 pedition in the North Atlantic during the Summer of 1899, 



487 

 Pearson (Prof Karl, F.R.S.). Mathematics and Biology, 274 ; 



National Life from the Standpoint of Science, Supp. iii. 

 Peat, the Commercial Uses of, W. H. Wheeler, 590 

 Pechard (E.), Reduction of Sulphomolybdic Acid by Alcohol, 



508 

 Peddie (Dr. W.), Relations between Thermo- and Electro- 

 Magnetic Effects, 99 ; Thermoelectric Position of Solid 



Mercury, 507 

 Peirce (B. O.), the Thermal Diffusivity of Carrara Marble, 90 

 Pelabon (II.), Action of Hydrogen on Bismuth Sulphide, 316 

 Pellew (E. ), Variation of Atmospheric Electricity, 491 

 Penck (Prof.), Glacial Phenomena of Australia, 405 

 Pendlebury (Charles), a Short Course of Elementary Plane 



Trigonometry, 178 

 Pendulums, Half-Seconds, Mr. Watson, 195 

 Penfield (S. L. ), Chemical Composition of Turquoise, 169 

 Penrose (Dr. F. C, F.R.S.), the Orientation of Greek Temples,. 



492 

 Penrose's Pictorial Annual, vol. vi. the Process Yearbook for 



1900, 178 

 Percival (A. S.), the Optics of Acuteness of Sight, 82 

 Perfumes, Natural and Artificial, 212 

 Peripatopsis Sedgivicki, Distinctive Characteristics of, E. L. 



Bouvier, 23 

 Peripatus, the Jamaican Species of. Prof. T. D. A. Cockerell, 



325 ; Abundance of Peripatus in Jamaica, Dr. J. E. Duerden, 



440 

 Perkin (A. G.), Rhamnazin and Rhamnetin, 75 ; Genistein, ii. 



75 



Perkin (Dr. F. Mollwo), the Present Condition of the Indigo 

 Industry, 7, ill, 302; Practical Electro-Chemistry, G. Ber- 

 tram Blount, 582 



Perkin (W. H.,jun.), Tetramethylene Carbinol, 433 ; Forma- 

 tion of Aromatic Compounds from Ethyl GlUtaconates, 529 



Perkins (B. W. ), Nitro-derivatives of Fluorescein, 75 



Pernter (Dr.), Trials of Stiger's Hail-dispersing Apparatus, 36 



Perot (A.), Application of Interference Method to Measurement 

 of Wave-lengths in Solar Spectrum, 51 



Perrotin (M.), the Velocity of Light, 75 



Perry (Prof. John, F. R.S.), Electrical Engineering as a Trade 

 and as a Science, 41 ; the Teaching of Elementary Mathe- 

 matics, David Eugene Smith, 367 ; National Life from the 

 Standpoint of Science, Prof Karl Pearson, F.R.S., Supp. 

 iii. 



Persei h and X) Heliometer Measures of. Prof. Schur, 240 



Perseus: a "New Star" in, 420, 477, 482; Sir Norman 

 Lockyer, K.C.B., F.R.S., 441, 467, 540; J. Janssen, 483; 

 Prof Edward C. Pickering, 497 ; Prof. H. C. Vogel, 502, 

 620 ; Prof. Copeland, 507 ; C. Easton, 540 ; Prof. Hale, 

 596 ; Mr. Sharp, 628 ; Dr. Rambaut, 628 ; Chart for Obser- 

 vations of Nova Persei, 525 ; Spectrum of Nova Persei, Prof 

 H. C. Vogel, 575 



Perturbations of Eros Produced by Mars, H. N. Russell, 141 



Peters (C. A.), Volumetric Estimation of Copper Oxalate, 169 



Petrography : Can Spectrum Analysis Furnish us with Precise 

 Information as to the Petrography of the Moon ? Dr. W, J. 

 Knight, 180 



Pettenkofer (Prof. Max Josef von). Death of, 381 ; Obituary 

 Notice of, 399 



Philip's London School Board Atlas, 344 



Phillips (H. A.), Bromination of Ortho-Oxyazo Compounds, 

 291 



Philology : Death of Prof. Max Miiller, 10 



Philosophy, Natural, Exercises in, Prof Magnus Maclean, 154 



Philosophy : the Riddle of the Universe at the Close of the 

 Nineteenth Century, Ernst Haeckel, 320 



Phipson (Dr. T. L. ), Researches on the Past and Present History 

 of the Earth's Atmosphere, 537 



Phisalix (C), Poisonous Secretion of lulus ferrestris, 171 ; 

 Quinone, the Active Principle of lulus terrestris, 196 



Phonography, Permanent Records, T. A. Edison, 523 



Phosphorescence as a Source of Illum.ination in Photography, 

 Rev. F. Jervis-Smith, F.R.S., 421 



Photography : Photographic Method of Recording Speed of 

 Motor Cars, L. Gaumont, 64 ; Les Plaques Sensibles au 

 Champ Electrostatique, V. Schaffers, 82 ; Quartz-Calcite 

 Symmetrical Doublet, J. W. Gififord, 127 ; Photography of 

 the Static Discharge, Dr. Hugh Walsham, 180; Reversed 

 Pictures obtained with Developing Bath Exposed to Direct 

 Sunlight, Prof F. E. Nipher, 209 ; Contributions to Photo- 

 graphic Optics, Dr. Otto Lummer, Prof. Silvanus P. Thomp- 

 son, F. R.S. , 227 ; the British Journal Photographic Almanac, 

 249; the "Panoram" Kodak, 261 ; the Disappearance of 

 Images on Photographic Plates, William J. S. Lockyer, 278 ; 

 Photography in Colours, R. Child Bayley, 298 ; Die Photo- 

 graphie im Dienste der Himmelskunde, Dr. Karl Kostersitz, 

 324 ; Eclipse Photography, Prof. Francis E. Nipher, 325 ; 

 Die Photographie im Hochgebirg, Emil Terschak, 345 ; 

 Photographic Catalogue of Polar Stars, 355 ; the Preservation 

 of Photographic Records, Chapman Jones, 373 ; Recent 

 Results in Positive Photography, Prof F. E. Nipher, 387 ; 

 Photographic Optics : Dr. Otto Lummer, Dr. Rudolf Stein- 

 heil, 395 ; Prof Silvanus P. Thompson, F.R.S., 395 ; Phos- 

 phorescence as a Source of Illumination in Photography, 

 R. F. Jervis-Smith, F.R.S., 421; the Kammatograph, 424; 

 Photographic Negatives Printed by Contact by Light of 300- 

 Candle Incandescent Lamp, Prof F. E. Nipher, 436 ; a Tree 

 Torn by Lightning, Percy E. Spielmann, 466 ; Photography 

 of the Aurora, 525 ; Reduction of Photographs of Stellar 

 Spectra, 620 



Photometrical Measurements, W. M. Stine, 416 



Phototherapy : Simple Apparatus for Application of Finsen's 

 Method, MM. Lorlet and Genoud, 387 



Phylogeny : on the Morphology and Phylogeny of the Palae- 

 ognathse (Ratitoe and Crypturi) and Neognathae (Carinatae), 

 W. P. Pycraft, 536 



Physical Agents, the Effect of, on Bacterial Life, Dr. Allen 

 Macfadyen, 359 



Physical Agents, Influence of, on Bacteria, 420 



