XXXVI 
Index 
f Nature, 
. June 9, 1904 
the Palozoic Seed, Lagenostoma Lomaxi, Prof. F. W. 
Oliver and Dr. D. H. Scott, F.R.S., 
Palolithics : a Probable Palzeolithic Floor at Prah Sands, 
Mr. and Mrs. Clement Reid, 495 
Palzontology : Molars of Anthropoids from the Leithakalk, 
Dr. O. Abel, 36; Lizard’s Skull from the Karoo Form- 
ation, 89; the Carboniferous Ammonoids of America, 
James Perrin Smith, 115; Patagonian ‘‘ Diprotodont ”’ 
Mammals, F. Ameghino, 137; on Some Upper Jurassic 
Ammonites, Miss Maud Healey, 166; on the Occurrence 
of Edestus in the Coal-measures of Britain, E. T. 
Newton, F.R.S., 166; Edestus from the Coal-measures 
of North Staffordshire, E. T. Newton, 495; British Mam- 
mals, an Attempt to Describe and Illustrate the Mam- 
malian Fauna of the British Islands from the Commence- 
ment of the Pleistocene Period to the Present Day, Sir 
H. Johnston, 193; New and Primitive Rhynchocephalian 
from the Karroo Beds, Dr. R. Broom, 204; Dreissensia 
polymorpha Found in Clifton Hampden Deposits, A. S. 
Kennard and B. B. Woodward, 204; Mammals of the 
Santa Cruz Fauna, W. B. Scott, 253; Obituary Notice 
of Prof. Karl Alfred von Zittel, 253; the Fossil Echinoids 
of Japan, S. Tokunaga, 257; Paleontology and Strati- 
graphy of the Marine Pliocene and Pleistocene of San 
Pedro, California, Ralph Arnold, 266; Chronology of the 
Cave near Mentone, Marcellin Boule, 287; Age of the 
Human Skeletons from the Caves of Mentone, Marcellin 
Boule, 432; Discovery of a Human Skeleton in Cave- 
earth at Cheddar, 348; on the Jaws of Ptychodus from 
the Chalk, Dr. A. Smith Woodward, F.R.S., 407; 
*“ Cretaceous ’’ Molluscs, Dr. H. von Ihering, 445; Ter- 
tiary Brachiopods of Patagonia, Dr. H. von Ihering, 
445; Tetraploporella Remesit, Dr. G. Steinmann, 471; 
the Genus Porosphera, Dr. G. J. Hinde, 471; Ueber 
verschiedene Wege phylogenetischer Entwickelung, Prof. 
O. Jaekel, 484; the Multiple Origin of Horses and 
Ponies, Dr. J. Cossar Ewart, F.R.S., 590 
Palestine: the Cause of the Saltness of the Dead Sea, W. 
Ackroyd, 305 
Pallich (Dr. von), Death of, 468 
Palliot (R.), on the Action of Radium Bromide on the 
Electrical Resistance of Bismuth, 311 
Palmer (Prof. Arthur W.), Death of, 396 
Palolo Worm of Samoa, the, Messrs. Kriimer, Friedlander 
and W. McM. Woodworth, 523; Dr. R. Horst, 582; 
Editor, 582 
Parallax of B Cassiopeize, S. Késtinksky, 38 
Parasite, the Pearl-oyster, in Ceylon, Prof. W. A. Herdman, 
F.R.S., 126 
Paris Academy of Sciences, 23, 47, 72, 95, 119, 143, 167, 
191, 215, 239, 263, 287, 311, 335, 359, 383, 407, 431, 455, 
479, 503, 528, 551, 575, 599, 623; Prizes for 1903, 215; 
Prizes Proposed by the, for 1904, 234 
Parkhurst (J. A.), the Variable Star 1921, W Aurigz, 234 
Parkin (J.), on the Localisation of Anthocyan in Foliage 
Leaves, 19 
Parr (G. D. Aspinall), Electrical Engineering Measuring 
Instruments, 101 
Parrakeets, a Handbook to the Imported Species, David 
Seth-Smith, 507 
Parrots, a Monograph on Imported, David Seth-Smith, 507 
Parthenogenesis, Artificial, Fertilisation of the Egg of the 
Sea-urchin by the Sperm of the Star-fish, Prof. Loeb, 566 
Parthenogenesis, Cancer and, Dr. F. Bushnell, 392; Prof. 
J. B. Farmer, F.R.S., 392 
Patagonia, the Santa Cruz Fauna and the Princeton Ex- 
pedition to, W. B. Scott, 253; P. Dusén, 253; A. W. 
Evans, 253; G. Macloskie, 253; J. B. Hatcher, 253 
Patagonian ‘‘ Diprotodont ’? Mammals, F. Ameghino, 137 
Patent Laws, Ivan Levinstein, 514 
Paterson (John), Bottle and Ocean Currents, 539 
Pathology : the Senescence of Organs and its Influence on 
Pathological Phenomena, Prof. R. Wiedersheim, 237 ; 
Etudes de Psychologie physiologique et pathologique, E. 
Gley, 244; Death of Prof. Angelo Maffucci, 255; Obituary 
Notice of, 376; a Laboratory Manual of Physiological 
and Pathological Chemistry for Students of Medicine, 
Prof. E. Salkowski, 557 
Patterson (T. S.), Asymmetric Synthesis, 438 ; 
Payne (Arthur), Practical Orthochromatic Photography, 486 
Payne (W. W.), Astronomy in Schools, 38 
Paz-Soldin (Francisco Alayza y), Geological Studies in 
Peru, 500 
Peabody (J. E.), Studies in Physiology, Anatomy, and 
Hygiene, 54 
Peachey (S. J.), Preparation of the Tetra-alkyl Derivatives 
of Stannimethane, 239 
Peaks and Passes of Greece, Rufus B. Richardson, 483 
Pearce (F.), on the Reduction Phenomena Produced by the 
Action of Alternating Currents, 384 
Pearl-fishery in Ceylon, Last Year’s, Everard im Thurn, 328 
Pearl Oyster Fisheries of the Gulf. of Manaar, Report to 
the Government of Ceylon on the, W. A. Herdman, 
F.R.S., 465 
Pearl-oyster Parasite in Ceylon, the, Prof. W. A. Herdman, 
F-RiS., 126 
Pearls, Application of the X-rays to the Examination of 
Fine, Raphael Dubois, 359 
Pearls, the Secretory Mechanism 
Dubois, 504 
Peary (Commander), Four Years’ Arctic Exploration, 1898- 
1902, 34 
Peat-fuel, Electrical Process for Preparation of, Messrs. 
Johnson and Phillips, 35 
Peculiar Forms of Comets’ Tails, Prof. E. E. Barnard, 330 
Pélabon (H.), Fusibility of Mixtures of Sulphur and Bis- 
muth, 24; a Variety of Filiform Carbon, 48; Fusibility 
of Mixtures of the Sulphides of Bismuth and Silver and 
of the Sulphides of Bismuth and Antimony, 143 
Pellat (H.), Part Played by the Corpuscles in the Formation 
of the Anodic Column in Tubes of Rarefied Gases, 431; 
General Law of Magnetofriction, 479 
Pender (Harold), Recherches Contradictoires 
magnetique de la Convection électrique, 32 
Penrose’s Pictorial Annual, 316 
Pentland-Smith (J.), the Lamprey, 250 
Periodic Migrations between the Asiatic and the American 
Coasts of the Pacific Ocean, J. P. Smith, 542 
Periodical Changes in the Colours of Jupiter’s 
Stanley Williams, 16 
Perkin (A. G.), Some Natural Colouring Matters, 238; 
Electrolytic Oxidation of Phenols, 382 
Perkin (F. M.), Electrolytic Oxidation of Phenols, 382 ; 
Electrolytic Analysis of Gold, 551 
Perkin (Dr. W. H., sen., F.R.S.), Simplification of Zeisel’s 
Method of Methoxyl and Ethoxyl Determinations, 142 
Pernter (Prof. J. M.), Allerlei Methoden das Wetter zu 
Prophezeien, 35; on the Use of the Hair Hygrometer in 
Place of the Psychrometer for Purposes of Ordinary 
Observations of Humidity, 43; Curious Shadow Effects, 
69 
Porat (A.), Distortion Developed by Shock in Notched Test- 
pieces, 192 
Perrotin (Henry), Death of, 421; Obituary Notice of, 468 
Perry (Prof. John, F.R.S.), Expansion Curves, 56; a Useful 
Empirical Formula, 102; Oxford and Science, 207, 269, 
Entropy or Thermodynamics from an Engineer’s Stand 
point and the Reversibility of Thermodynamics, James 
Swinburne, 561 
Persei, Nova, Meridian Circle Observations of, John A. 
Dunne, 282 
Persei, Nova, Nebulosity Around, Otto Luyties, 589 
Persei, Nova, Observed Motion in the, Nebula, Prof. J. M. 
Schaeberle, 521 
Peru, Geological Studies in, Francisco Alayza y Paz-Soldan, 
00 
Pests and Blights of the Tea Plant, the, Sir G. Watt and 
H. H. Mann, ‘580 ; 
Petit (Joseph), Influence of Complex Tons in Electrolysis by 
Alternating Currents, 408 
Phase Rule and its Applications, the, Alex. Findlay, 579 
Philip (E.), a Spinthariscope called Perman’s Radioscope, 
Producing, Raphael 
sur l’Effet 
Belts, 
495 ow 
Philippe (L.), Ricinine, 431 _ ‘ 
Phillips (Charles E. S.), Radiations Producing Photographic 
Reversal, 365 
Philoche (Mlle. Ch.), the Constancy of Maltase Ferment, 
28 
Philology : Oriental Studies in England and Abroad, Prof. 
T. W. Rhys Davids, 423 : ‘ 
Philosophy : Cambridge Philosophical Society, 95, 382, 454; 
