Nature, ] 
June 13, 1907 
L[ndex 
XXXII1 
with Different Light Rays, Prof. E. Hertel, 516; In- 
fluence of the Surrounding Temperature on the Luminous 
Intensity of an Incandescent Electric Lamp, F. Laporte 
and R. Jouaust, 575; Contribution to the Study of 
Phosphorescence, Henri Becquerel, 575; 
Optik, Prof. J. M. Pernter, 577; Seeing Stereoscopic 
Pictures without Stereoscope, Colonel W. G. Morris, 
614 
Orbits of Three Double Stars, Prof. Doberck, 282 
Orchids of the North-western Himalaya, the, J. F. Duthie, 
587 
Organic Analysis, Methods of, Dr. H. C. Sherman, 26 
Organique, Cours de Chimie, Fréd. Swarts, 316 
Origin of the English Nation, the, H. Munro Chadwick, 
W. A. Craigie, 555 
Orkneys, the Norsemen in the, and the Monuments they 
have left, Monumenta Orcadica, L. Dietrichson, J. W. 
Cursiter, 315 
Ornithology: Pelicans in Eastern Europe, R. B. Lodge, 
38; Origin of Parasitic Habits in Cuckoos, C. L. 
Barrett, 135; Emu Remains from King Island, Bass 
Strait, Prof. Baidwin Spencer, 228; the ‘‘ Bleating ’’ or 
“Drumming ’’ of the Snipe, P. H. Bahr, 359; Death 
of C. A. Witchell, 444; the Habits of Birds-of-Paradise, 
C. C. Simpson, 445; British Birds’ Nests, How, Where, 
and When to Find and Identify Them, R. Kearton, 562 
Orr (Prof. W. McF.), Stability or Instability of the Steady 
Motions of a Perfect Liquid, 119 
Orthoptera, a Synonymic Catalogue of, W. F. Kirby, 269 
Orton (K. J. P.), Influence of Light on Diazo-reactions, 
215 
Osborn (Prof. H. F.), Prehistoric Crania from a Mound 
in Douglass County, Nebraska, 255 
Osteology: Occurrence of an ‘‘ Intermetatarsal Bone ”’ in 
the Human Foot, A. Rauber, 84 
Oswald (Dr. Felix), a Treatise on 
Armenia. 197 
Ottweiler (Dr.), Wissenschaftliche Beihafte zum deutschen 
Kolonialblatte, 616 
Owens (E. W.), How to Learn on Shore the Rule of the 
Road at Sea, 126 
Oysters, Toxic Effects of, J. Baylac, 456 
the Geology of 
Pacific, Observations of a Naturalist in the, between 1896 
and 1899, H. B. Guppy, 217 
Packard (John C.), Apparatus to Determine the Resultant 
of Two Motions at Right Angles to One Another, 4o1 
Pagan Races of the Malay Peninsula, W. W. Skeat and 
C. O. Blagden, 415 
Pagan Temples and Christian Churches, Incubation, or 
the Cure of Disease in, Mary Hamilton, 366 
Paget (Stephen), Experiments on Animals, 121 
Paints, the Chemistry of, and Paint Vehicles, Clare H. 
Hall, 4 
Paleobotany: American Fossil! Cycads, G. R. Wieland, 
329; the Fossil! Osmundacee, R. Kidston and D. T. 
Gwynne-Vaughan, 455; Beitrage zur Flora der unteren 
Kreide Quadlinburgs, Teil i., die Gattung Hausmannia, 
Dunker und einige seltenere Pflanzenreste, P. : 
Richter, 617 
Palzeontology: Excavation of ‘‘ Hyzna-dens’’ in the 
Mammoth Cave near Doneraile, R. J. Ussher, 83; 
Recent Cave-exploration in California, Dr. J. C. Merriam 
and Prof. F. W. Putnam, 156; Goniopholis crassidens | 
from the Wealden Shales of Atherfield (Isle of Wight), 
R. W. Hooley, 167; Vertebrate -Fossils of Cretaceous 
Formation of Bahia (Brazil), J. Mawson and Dr. A. S. 
Woodward, 334; New Dinosaurian from the Trias of 
Lossiemouth, Elgin, Dr. A. S. Woodward, 334; die 
Leitfossilien aus dem Pflanzen- und Thierreich in 
systematischer Anordnung, Dr. Johannes Felix, 388; 
Subfossil Prosimiz from Madagascar, H. F. Standing, 
574 
Panama Canal, wht the Lock System was Adopted for 
the, Hon. W. H. Taft, 181 
Pantocsek (Dr. Josef), die Biologie 
Panton (Dr. A. W.), Death of, 205 
Paper Technology, an Elementary 
facture, Physical Qualities, and 
des Balatonsees, 79 
Manual on the Manu- 
Chemical Constituents 
Meteorologische | 
of Paper and of Paper-making Fibres, R. W. Sindall, 
289 
Paradoxes of Nature and Science, Dr. 
606; the Reviewer, 606 
Parallax Investigations on 163 
Proper Motion, Frederick L. 
and William L. Elkin, 234 
Parasites: Leucocytozoon canis, a Parasite of the Dog, 
Captain Christophers, 400; Influence of Parasites on 
their Hosts, Prof. H. B. Ward, 571 
Paris Academy of Sciences, 23, 47, 71, 96, 120, 143, 167, 
190, 238, 263, 287, 311, 335, 359, 383, 407, 431, 455, 
479, 503, 528, 575, 599, 623; Prizes Awarded and Pro- 
posed by the, 231 
Parkhurst (J. A.), Researches in Stellar Photometry, 498 
Parkin (John), the Origin of Angiosperms, 621 
Parkinson (J.), the Geology of the Oban Hills (Southern 
Nigeria), 286 
Parshall (H. F.), Electric Railway Engineering, 53 
Parthenogenese, Untersuchungen uber ktinstlichen, und das 
Wesen des Belruchtungsvorgangs, Prof. Jacques Loeb, 
W. Hampson, 341, 
Stars 
Chase, 
Large 
Smith, 
mainly of 
Mason F. 
4 
Pascal (Prof. Ernesto), Obituary Notice of Prof. Ernesto 
Cesaro, 254 
Pastureau (M.), a Tetrabromo-derivative of Methylethyl- 
ketone, 191 : 
Pathology: Immunity in Infective Diseases, Prof. Elie 
Metchnikoff, Prof. R. I. Hewlett, 99; the Inflammation 
Idea in General Pathology, Dr. W. H. Ransom, F.R.S., 
Prof. R. T. Hewlett, 99; the Milroy Lectures on 
Epidemic Disease in England, the Evidence of Variability 
and of Persistence of Type, Dr. W. H. Hamer, Prot. 
R. T. Hewlett, 99; Microbiologie Agricole, Dr. Edmond 
Kayser, Prof. R. I. Hewlett, 99; Rudolf Virchow, 
Briefe an Seine Eltern, 1839 bis 1864, Supp. to 
March 14, ili 
Patkanoff (S.), the Tungus Race of Siberia, 236 
Paulesco (M.), Aneurism of the Ophthalmic Artery Cured 
by Gelatin, 456 
Paulsen (Prof. A. F. W.), Death and Obituary Notice, of, 
299) 
Paulsen (Friedrich), the German Universities and Uni- 
versity Study, 338 
Payen-Payne (de V.), French Readings in Science, 341 
Peachey (S. J.), Trimethylplatinimethyl Hydroxide and its 
Salts, 575 
Pearce (N. D. F.), Collection of Oribatidaee from British 
Guiana, 95 
Pearl (Prof. Raymond), Biometrical Study of Conjugation 
in Paramecium, 542; Variation and Correlation in 
Ceratophyllum, 612 
Pearson (Prof. H. H. W.), the Living Welwitschia, 536 
Pearson (R. S.), the Level of Subsoil Waters with Regard 
to Forests, 613 
Peary’s (Commander R. E.) Arctic Expedition, 37 
Pelham (Prof. H. F.), Death of, 374 
Pellat (H.), the Constitution of the Atom, 479; Constitu- 
tion of the Atom and the Law of Colomb, 599 
Penck (Prof. Albrecht), Beobachtung als Grundlage der 
Geographie, 483 
Pendlebury (C.), a Junior Arithmetic, 74; a New Shilling 
Arithmetic, 409 
Penrose’s Pictorial Annual, 390 
Pepper (O. M.), Variation and Correlation 
phyllum, 612 
Perception of Relief by 
224; A. E. Smith, 321 
Péringuey (L.), Petroglyphs of Animals and Men in Africa, 
in Cerato- 
Monocular Vision, T. Terada, 
229 
Perkin (A. G.), some Constituents of Natural Indrgo, 406 ; 
Constituents of Natural Indigo, 477 
Perkin (Dr. F. M.), Practical Methods of Inorganic Chem- 
istry, 26; Preparation of Chromyl Dichloride, 358 
Perkin (W. H., jun.), some Derivatives of Benzophenone, 
215; Synthesis of Carvestrene and its Derivatives, 478 
Pernter (Prof. J. M.), Meteorologische Optik, 577 
Perrée (W. F.), Construction of a Tramway in Connection 
with the Extraction of Timber from the Forests of 
Goalpara, 207 
Perrier (G.), Presence of Formol in Certain Foods, 24 
Perrot (F. Louis), Preparation of Pure Helium bv Filtra- 
