Index 



tXatn>r, 



Perkin and Pope (Profs.), Optically Active- Substances con- 

 taining; no Asymmetrii \ t, ^36, ^96 ; ( onvers 1 



Centroasymmetric Compounds, 4<it> 

 Perman (Dr. E. P.), Limits ul Explosibility in Gaseous 



Mixtures, 416 

 Petavel (Prof.), Practical Stability of Aeroplanes, 440 

 Fetch (T.J, tin- Physiology and Diseases of Hevca brasili- 



ensis, the Premier Plantation Rubber Tree, 146 

 Petersen (C. G. Joh.), Experiments on the Possibility ol 



Combating the Harmful Animals of the Fisheries, 



i-spei i.'ilh 1 In- Whelks, 536 

 Petersen (C. G. J.) and P. B. Jensen, Valuation of the Sea : 



Animal Life of the Sea-bottom, its Food and Quantity, 



536 

 Pethybridge (Dr.), Bacterial Diseases of the Potato Plant 



in \\ esl li eland, 535 

 Petrie (Prof. Flinders), Graeco-Roman Portraits : Sculptures 



from Memphis, &c, 518; Roman Portraits found at 



Hawara, 500 

 Petrie and Macalister (Drs.), Examination for Plague 



Infection of Rats collected in Suffolk and Essex, 249 

 Pettersson (Prof.), .Moon's Effect on Deep-water Move- 

 ments in the Skagerrak, 469 ; Parallactic Tides set up 



in the Bottom Layers of the Sea by the Moon, 498 

 Phillips (E. P.), Work and Publications on South African 



Proteaceas, 170 

 Picart (L.) and F. Courty, Comet 1911c (Brooks), 169 

 Pickering (Prof.), Spectrum of Comet 1911b, 257; Call 



for Cooperation in Variable Star Observation, 529 

 Pictet (A.), Derivation of Plant Alkaloids from Proteins, 



392 

 Pictet (Am£) and A. Gams, Synthesis of Berberine, 271 

 Pilsbry and Ferriss (Messrs.), Land-shells of South-western 



United States, 229 

 Pingriff (G. N.), Determination of Refractive Index of a 



Liquid, ssi 

 Pionchon (J.), Effect oi Relative Displacement of a Metal 



and Electrolyte in Contact, 68 

 Plate (Prof.), Laws of Inheritance and Evolution Theory, 



445 

 Pluvinel (Count A. de la B.) and F. Baldet, Spectrum of 



Comet 1911b (Kiess), 306, 337; Spectrum of Comet 190SC 



(Morehouse), 427 

 Pocock (R. I., F.R.S.), Different Use of Trunk in Indian 



and African Elephants, 255 ; the Distastefulness of 



Anosia plcxtppus, 484 

 Pokrowski (Prof. K.J, Tails of Comet 1910a, 21 

 Pope (Prof.) and Prof. W. H. Perkin : see Perkin 

 Popoff (M.), Formation of Chromidia in Cells of Muscidae 



(Festschrift zum Sechzigsten Geburtstag Richard Hert- 



wigs), 443 

 Potter (Prof.), Present Knowledge of Bacterial Diseases of 



Plants, S3S 

 Poynting (Prof. J. H.), Small Longitudinal Material Waves 



accompanying Light Waves, 237 

 Priestley (Prof.) and Mr. Knight, Influence of Electricity 



on Respiration of Germinating Seeds, 535 

 Priestley (Prof.) and Miss Lee, Method of Measuring the 



Effects of Various Factors on Growth of Micro- 

 organisms, S3S 

 Przibram (Dr. K.), Charge Carried by Smoke Particles, 



200 

 Purvis (J. E.), Ultra-violet Absorption Spectra of Vapours, 



Solutions, and Films of Organic Substances, 436 

 Pye (D. R.), Mechanical Properties of Hard-drawn Copper, 

 440 



Quarkaroli (A.), New and Safei Method of Preparing 

 Nitrous Oxide, 562 



Qu^nisset (F.), Discovery of a Comet, 1911/, 427; Comets 

 1911b and 1911c, 427 



Qu^nisset (F.) and F. Baldet, Comet iqn/ (Quenisset), 

 460; Discovery of a Comet, 1911/. at Juvisy, 473; Photo- 

 graphy of Comet 191 ic (Brooks), 563 



Radau (R.), Tables of the Moon based on Delaunay's 



Theorv, 238 

 Raitt (W.), >aper-pulp Testing, 125 

 Ramsay (Sir Wm., K.C.B., F.R.S.), Receives the Order 



" Pour le MeVite " from the German Emperor, 253 : 



Action of Niton (the Radium Emanation) on Thorium 



Salts, 271 ; Inaugural Address to the British Association 



at Portsmouth, 282; Corpuscular Radiation: (1) Sun's 



Retention ol Heat, (2) Experiments on Radium in a 



Glass lube within a Second Vessel, 501 

 Ramsa) (Prof. W. M.), Important Archaeological Dis- 

 cover} (Men Askaenos) in Asm Minor, 225 

 Rawling (Captain C. G.), Explorations in Dutch New- 

 Guinea : Lecture at the Royal Geographical Society, 25 ; 



Expedition to New Guinea, 471 

 Ray (Sidney 11.), the Polynesian Wanderings, W. 



Churchill, 195, 382; the American Indian Languages, 



Dr. F. Boas, 338 

 Rayleigh (the Rt. Hon. Lord, O.M., F.R.S.), Speech at 



the Opening of the National Experimental Tank, 57 ; 



Flight, Natural and Artificial : Report of the Bird Con- 



struction Commmittee, 181 

 Read (E. W.j, Cabbage White Butterfly, Pupation, 78 

 Rebaul (G.) and E. G. de Bollemont, Transport of Metallic 



Particles under the Action of Heat, 507 

 Reeve (Dr. R. A.), Honorary Degree at Birmingham, 15* 

 Reid (Clement, F.R.S.), Hamilton and Tail, 77 ; Local 



(Portsmouth) Geology, 437; Former Connection of Isle 



of Wight with Mainland, 438-9 

 Reid (Prof. R. W.), Stone Cists in Aberdeenshire, 513 

 Reid (Walter F.), Presidential Address to Society of 



Chemical Industry, 94 

 Reiss (G. E.), Available Laboratory Attendants. 78 

 Reunert (Theo.), Training of Engineers, 22 

 Reutter (M.), Analysis of a Resin from an Egyptian Sarco- 

 phagus, 473 

 Reynolds (Prof. S. H.), Silurian Rocks of the Eastern 



Mendips, 438 

 Rhead (E. L.) and Prof. A. H. Sexton, Assaying and 



Metallurgical Analysis, 213 

 Ricco (Prof.), Solar Prominences in 1909, 193 ; Solar 



Prominences, 258 ; an Enormous Bolide, 529 

 Richard (A. H.), a Dimethylpentene obtained by the Action 



of Heat upon a Dimethylcaoutchouc, 102 

 Richards (Prof. T. W.), Fundamental Properties of the 



Elements : Faraday Lecture at the Chemical Society, 29 

 Richards (W. A.), Text-book of Elementary Foundry 



Practice for Students, 448 

 Richardson (Alex.), the Evolution of the Parsons Steam 



Turbine, 307 

 Richardson (Miss Harriet), Two New Species of Serolis, 



560 

 Riches (T. Hurry), Death of, 333 

 Richter (O.), die Ernahrung der Algen, 141 

 Richter (Prof. Paul), Death, 558 

 Righi (Prof. A.), Effect of Magnetic Field Parallel to Axis 



of a Vacuum Tube on Discharge, 153 ; Ionisation due 



to Magneto-kathode Rays, 426 ; Influence of Magnetic 



Field on Sparking Potential, 426 

 Risley (Sir Herbert, K.C.I. E.), Obituary Notice, 454 

 Ristenpart (Dr.), Charts for the Southern Heavens, 154 

 Ritter-Zahony (R. von), the Pelagic Organism Sagitta and 



its Relatives, 457 

 Rivers (Dr. W. H. R., F.R.S.), the Ethnological Analysis 



of Culture : British Association Address to Section H, 



356 

 Roaf (Dr. H. E.), Carbon Dioxide Output during Decere- 

 brate Rigidity, 534 

 Robarts (N. F.) and H. C. Collyer, Excavation of the 



British Camp at Wallington, 124 

 Roberts (R. Cadwaladr), Date of Discovery of the 



Capillaries, 45 

 Robertson (F. E.), Training of Engineers in Locomotive 



Works, 23 

 Robin (F.), Pitch in Alloys and its Variation with 



Temperature, 576 

 Robson (W. G.), Laboratory Note on a Simple Method of 



finding the Radius of Gyration of a Body, 204 

 Rodrigues (Vice-Admiral Campos), Standard Time in 



Portuguese Territories, 144 



R rs (R. \. P.), a Short History of Ethics: Greek and 



Modern, 247 

 Rohde (Prof. Emil), Chromatin Diminution in other 



Tissues than Germ Cells, 256 

 Rolston (W. E.), a Star Atlas and Telescopic Handbook, 

 A. P. Norton, 42; Comet irnic (Brooks), 304 



