Rohr (Dr. Moritz von), die optischen Instrumente, 461 Rolston (W. E.), Granulations on the Solar Surface, Prof. A. Hansky, 401; Our Stellar Universe, Thomas Edward Heath, 581

Ronaldson (J. H.), the Copper Deposits of Little Namaqualand, 66

Roncagliolo (Dr. Cesare), Rubidium and Cæsium Alums, 473

Röntgen Radiation, Polarisation in Secondary, Dr. C. G.
Barkla, 501

Röntgen Radiation, Secondary, Dr. C. G. Barkla, 502
Röntgen Rays, Secondary, and Atomic Weight, Dr. Charles
G. Barkla, 365; see also Radiography
Röntgen Society, the Present Position of Radio-activity,
Frederick Soddy at, 285

Roots, Regeneration in, Prof. B. Němec, 170

Roscoe (Sir Henry E., F.R.S.), the Perkin Jubilee and Chemical Industries, 438

Rose (R. E.), Constitution of Salicin, 624

Ross (Mr.), Discovery of a New Comet (1906c), 494 Rosset (M.), Action of Peroxide of Nitrogen on Ammonia, 504

Rotch (Dr. A. L.), the Exploration of the Atmosphere over the Tropical Oceans, 54; Observations with Registration Balloons in America, 349; the Vertical Distribution of the Meteorological Elements above the Atlantic, 449 Rotzell (Dr. W. E.), Man, an Introduction to Anthropology, 293

Roux (Eug.), Influence of the Reaction of the Medium on the Activity of Amylase and on the Composition of Saccharified Starch, 335

Rowing and Track Athletics, Samuel Crowther and Arthur Ruhl, 605

Rowland-Brown (H.), Argynnis niobe from the Pyrenees, Cevennes, and South Tyrolese Mountains, 526

Royal Astronomical Society, 95, 190, 334, 598; Medal Awards, 370

Royal College of Science, the, 344, 442; Bursaries at the, Prof. John Perry, F.R.S., 32

Royal Dublin Society, 215, 358, 383, 599

Royal Institution: Life-history of the Emperor Penguin, Edward A. Wilson, 211; the Electric Production of Nitrates from the Atmosphere, Prof. Sylvanus P. Thompson, F.R.S., 355; some Applications of the Theory of Electric Discharge through Gases to Spectroscopy, Prof. J. J. Thomson, F.R.S., at, 495

Royal Irish Academy, 215

Royal Medical and Chirurgical Society of London, Centenary, 1805-1905, Dr. Norman Moore and Stephen Paget, Prof. R. T. Hewlett, 388

Royal Meteorological Society, 95, 262, 357, 455, 527
Royal Microscopical Society, 23, 118, 287, 357, 503, 575
Royal Society, 70, 93, 116, 141, 166, 188, 213, 238, 311,
334, 380, 407, 453, 501, 525, 551, 574, 597, 622; Medal
Awards, 33; Anniversary Meeting of the Royal Society,
Medal Awards, 129; Antarctic Earthquakes, Observations
made with Horizontal Pendulum in the Antarctic
Regions, Prof. J. Milne, F.R.S., 210; a Gas Calorimeter,
C. V. Boys, F.R.S., 354; (1) the Periodogram and its
Optical Applications, (2) the Periodicity of Sun-spots,
Prof. Arthur Schuster, F.R.S., 378

Royal Society, Edinburgh, 119, 215, 239, 358, 383, 575
Royal Society of Naples, Memoirs of the, 327
Royal Society, New South Wales, 240, 456
Royal Society of Sciences, Göttingen, 360

Rozet (Cl.), Italian Observations of the Recent Solar
Eclipse, 38

Rudge (W. A. Douglas), Action of Radium Salts on Gelatin, 78; Action of Radium and other Salts on Gelatin, 119, 455

Rudmose-Brown (R. N.), the Falkland Island Fox, 365
Rudorf (Dr. G.), Physics of Ore Flotation, 214
Rudzki (Prof. M. P.), Aurora of November 15, 246
Ruff (O.), Pure Lithium, its Preparation by the Electro-
lysis of Lithium Bromide, 494

Ruffer (Dr. M. Armand), Evolution of the Present Know-
ledge of Immunity Artificially Acquired, 139
Ruhemann (S.), the Tetrazoline Group, 119; Action of Acid
Chlorides of Acetylenic Acids on Ketonic Compounds,
527

Ruhl (Arthur), Rowing and Track Athletics, 605

Rural Schools, Chemistry in, Prof. R. Meldola, F.R.S., 558; T. S. Dymond, 583

Russell (A.), Dielectric Strength of Air, 142

Russell (Dr. William J., F.R.S.), Action of Wood on a Photographic Plate, 152

Russell (I. C.), Preliminary Report on the Geology and Water Resources of Central Oregon, 376

Russell (J.), Effect of Electric Oscillations on the Magnetic Properties, 216

Russell (J. B.), Notes on Volumetric Analysis, 459
Rutherford (Prof. E., F.R.S.), Radio-activity, 289

Sabatier (Paul), Synthesis of Tertiary Alcohols derived from Paramethylcyclohexane, 431

Sabin (L. C.), Cement and Concrete, 457
Sachs (Dr. A.), Kleinite, 325

Safford (W. E.), the Useful Plants of the Island of Guam,

221

y Sagittæ, New Variable Stars in the Region about, Prof. Wolf, 518

Sailing Craft in Europe and Asia, H. Warington Smyth, Sir W. H. White, K.C.B., F.R.S., 536

Saleeby (C. W.), Organic Evolution, 99; Heredity, 171 Salet (P.), Spectroscopic Observations made during the Eclipse of the Sun of August 30, 1905, 191-2; Eclipse Spectra, 208

Salmon (the late Dr. George, F.R.S.), Memorial to, 274 Sammlung Schubert XLII., Theorie der Electrizität und des Magnetismus, Prof. Dr. J. Classen, 4

San Francisco Earthquake of April 18, the, 608, 613, 614; Dr. C. Davison, 608

Sanday (Miss E.), Embryology of the Amentiferæ, part ii., Carpinus Betulus, 167

Sandys (E.), Sporting Sketches, 149

Sang (Alfred), Chinese Names of Colours, 390; Sea-sickness and Equilibration of the Eyes, 511 Sanitation Smoke Abatement, a Manual for the Use of Manufacturers, Inspectors, Medical Officers of Health, Engineers and others, William Nicholson, 411; the Sanitation of a Country House, Dr. Harvey B. Bashore, 437

Sap in Trees, Ascent of, Frank Harris, 246

Sarat Chandra Das (Rai Bahadur), Origin of Mankind (according to the Lamaic Mythology), 432

Sarle (C. L.), the Silurian Fossils described as Arthrophycus and Dædalus, 590

Satellite, Observations of Jupiter's Sixth, 18

Satellite, Suggested Name for Neptune's, M. Fouche, 182 Satellites, Photographs of Jupiter's Sixth and Seventh, 182; see also Astronomy

Saturn, Phoebe, the Ninth Satellite of, Prof. W. H. Pickering, 63

Saturn, the Tenth Satellite of, Prof. W. H. Pickering, 87 Saville-Kent (W.), Pearling Industry of North Australia,

492

Schaberle (Prof. J. M.), the Probable Volcanic Origin of
Nebulous Matter, 296

Schaer (M.), Discovery of a Comet, 1905b, 87
Schaller (Mr.), Analysis of Dumortierite, 547
Scharff (Dr. R. F.), the Former Occurrence of the African
Wild Cat, Gmel., in Ireland, 215; Irish Cave Explor-
ations, 215

Scheerer (Otto), the Nabaloi Dialect, 584
Schenck (Dr. H.), Vegetationsbilder, 4

Schenck (Rudolf), Kristallinische Flussigkeiten und flussige
Kristalle, 242

Schiessbaumwolle (Nitrocellulosen), die Explosivstoffe mit besonderer Berucksichtigung der neuren Patente die, Dr. Richard Escales, 364

Schloesing (Th.), Nitrates and Nitrites as Manure, 95 Schnabel (Prof. Carl). Handbook of Metallurgy, 124 Schnaus (Hermann), Death and Obituary Notice of, 589 Schneider (C. K.), Illustriertes Handbuch der Laubholzkunde, part iv., 293

Scholz (J. B.), Flora of West Prussia, 36

Schools, Chemistry in Rural, Prof. R. Meldola, F.R.S., 558; T. S. Dymond, 583

Schools, Practical Science for, Prof. J. Perry, F.R.S., 402 Schubert (Dr. Hermann), Auslese aus meiner Unterrichtsund Vorlesungspraxis, 100, 365

Schuster (Prof. Arthur, F.R.S.), Sun-spot Periods, 190;

June 14, 1906,

Science and Hypothesis, Prof. H. Poincaré, 313; Wissen-
schaft und Hypothese, Prof. H. Poincaré, 313; (1) the
Periodogram and its Optical Applications, (2) the Period-
icity of Sun-spots, Papers at Royal Society, 378; a Plea
for Absolute Motion, 462

Schwarz (Prof. E. H. L.), on Baviaan's Kloof, a Contri-
bution to the Study of Mountain Folds, 91; the Coast-
ledges in the South-west of the Cape Colony, 141; Cor-
relation of the Members of the Transvaal System, 547
Schwendener (Prof.), the Statolith Theory of Geotropism,
349
Science: the Treasury and Men of Science, 9; the British
Science Guild, 10; Bursaries at the Royal College of
Science, Prof. John Perry, F.R.S., 32; Conference of
Delegates of Local Scientific Societies, 39; Scientific
Research in the Philippine Islands, (1) Description of
New Buildings, Paul C. Freer, (2) a Catalogue of the
Library, Mary Polk, Prof. R. T. Hewlett, 57; Actualités
Scientifiques, Max de Nansouty, 76; Science and Art of
Cricket, G. W. Beldam and C. B. Fry, 82; Scientific
Exploration in Central Asia, Dr. Gottfried Merzbacher,
227; the Application of Scientific Methods to the Study
of History, Prof. F. J. C. Hearnshaw, 307; Public
Schools Science Masters' Conference, Wilfred Mark
Webb, 308; Science and Hypothesis, Prof. H. Poincaré,
Prof. Arthur Schuster, F.R.S., 313; Wissenschaft und
Hypothese, Prof. H. Poincaré, Prof. Arthur Schuster,
F.R.S., 313; the Royal College of Science, 344, 442;
Science and Art of Carpentry, 363; Practical Science for
Schools, Presidential Address delivered before the
Physical Society by Prof. J. Perry, F.R.S., 402; the
Popular Conception of the Scientific Man, Prof. W. G.
Farlow, 403; Science in Archæology, 411; Cooperation
between Scientific Libraries, Dr. Thomas Muir, 372; Dr.
F. A. Bather, 413; Prof. Henry E. Armstrong, F.R.S.,
438; Prof. Herbert McLeod, F.R.S., 438; Prof. Gren-
ville A. J. Cole, 464; Dr. Hugh Marshall, 513; Forth-
coming Books of Science, 476; Scientific Reports of the
Local Government Board, Prof. R. T. Hewlett, 619;
Erkenntnis und Irrtum, Prof. Ernst Mach, Supp. to
November 30, vii

Scintillations Produced by the Electronic "B-Rays
emitted by Radium, C. W. R., 341

Sclater (W. L.), on the Migration of Birds in the Southern
Hemisphere, 40

Scorpio, a Large Photographic Nebula in, Prof. Barnard,

Sea-Fishing, Practical, a Handbook for Sea Anglers, P. L.
Haslope, Frank Balfour Browne, 51

Sea-sickness and Equilibration of the Eyes, Alfred Sang,
511; Dr. John Aitken, F.R.S., 560; Geoffrey Martin,
584

Sealing in Newfoundland Waters, Last Season's, T. South-
well, 35

Searle (G. F. C.), Expansion of a Gas into a Vacuum and
the Determination of the Specific Heat at Constant
Pressure for Gases, 455

Secondary Schools and Endowments, 178

Sedgwick (Adam, F.R.S.), a Student's Text-book of
Zoology, 73

Seelye (Miss), Respiration of Salamanders, 348

383

Seiches, Experimental Results in Connection with the
Hydrodynamical Theory of, P. White and W. Watson,
Seignobos (M.), Introduction aux Etudes Historique, 307
Seillière (Gaston), Diastatic Hydrolysis of Xylane, 192
Seismology: the Doncaster Earthquake of April 23, 1905,
Dr. Charles Davison, 141; Determination of the Dis-
tance of the Epicentre of an Earthquake from the
Duration of the Preliminary Tremors, Pre. Raffaelo

Stiatteri, 206; Antarctic Earthquakes, Observations made
with Horizontal Pendulum in the Antarctic Regions,
Prof. J. Milne, F.R.S., at Royal Society, 210; the Colom-
bian Earthquake, 395; the Kangra Earthquake of April
4, 1905, 418; Earth Tremors in India, Prof. W. Gal-
loway, 464; Experiments on Earth-currents at Kew Ob-
servatory, Dr. J. A. Harker, 526; the San Francisco
Earthquake of April 18, Dr. C. Davison, 608; Earth-
quake Origins, Major E. G. Harboe, R. D. Oldham,
620

Selborne, the Natural History of, Rev. Gilbert White, 581
Selenium Cells, Employment of, during Total Solar
Eclipse, 617

Seligmann (Dr. C. G.), Physical Anthropology and Eth-
nology of British New Guinea, 371

Sellier (J.), Anti-coagulating Power of the Blood Serum of
the Lower Animals, 408

Selous (Edmund), the Romance of Insect Life, 172; the
Bird Watcher in the Shetlands, with Some Notes on
Seals, with Digressions, 414

Semon (Richard), Die Mneme als erhaltendes im Wechsel
des organischen Geschehens, 338

Semple (W.), Old Customs and Festivals, 582
Sennett (A. R.), Garden Cities in Theory and Practice, 2
Serotherapy: Serotherapy in Cases of Bleeding, Emile
Weil, 24; the Inoculation of Cancer, M. Mayet, 263;
the Serum Therapy of Plague in India, W. M. Haffkine,
Prof. R. T. Hewlett, 368; Toxin and Antitoxin of
Cholera, MM. Brau and Denier, 528

Seward (A. C., F.R.S.), on Educational Methods in the
Teaching of Botany, 163; the Araucarieæ, 238; the
Origin of Gymnosperms, 542; Catalogue of the Fossil
Plants of the Glossopteris Flora in the Department of
Geology, British Museum (Natural History), being a
Monograph of the Permo-Carboniferous Flora of India
and the Southern Hemisphere, E. A. Newell Arber, 577
Seychelles Archipelago, the, the Percy Sladen Expedition
in H.M.S. Sealark to the Indian Ocean, J. Stanley
Gardiner, 294

Seymour-Jones (A.), Leather for Libraries, 53
Shaler (Dr. N. S.), Death of, 613

Shantung, Sounding Stones at Ch'üfu, Alfred Tingle, 222
Sharpe (F. R.), the Stability of Motion of Viscous Liquids,
159

Shaw (Dr. W. N., F.R.S.), the Pulse of the Atmospheric
Circulation, 175; Seasons in the British Isles from 1878,
210; Is London Fog Inevitable? 493

Shelford (R.), Tatu in Borneo, 503; "Flying" Snakes, 525
Shepherd (E. S.), Tensile Strength of Copper-Tin Alloys,

62

Sheppard (T.), the Making of East Yorkshire, a Chapter
in Local Geography, 364

Shetlands, the Bird Watcher in the, with some Notes on
Seals, with Digressions, Edmund Selous, O. V. Aplin,
414

Shipley (A. E., F.R.S.), Insects as Carriers of Disease,
Address at the Meeting of the British Association at
Pretoria, 235

Ships and Shipping, Commander R. Dowling, Commander
H. C. Lockyer, R.N., 150

Siemens (Carl Heinrich von), Death of, 540

Silberrad (O.), Removal of Nitrous Acid from Concen-
trated Nitric and Sulphuric Acid, 430

Silicium Lines, Wave-lengths of, Prof. Frost and J. A.
Brown, 17

Silk, Seta Artificiale, G. B. Baccioni, 606
Simmonds (C.), the Adulteration of Butter, 466, 535

Simplon Tunnel, Die Vermessungs- und Absteckungs-
Arbeiten für den, Prof. C. Koppe, 30; Surveying Work of
the, Francis Fox, 84

Simpson (C. B.), on Locust Destruction in the Transvaal
during the Season 1904-5, 40

Simpson (Dr. Sutherland), the Temperature of the
Monkev, 216

Sinclair (W. J.), Prothylacinus and the Other Marsupial-
like Carnivores of the Santa Cruz Beds are True Mar-
supials, 63

Sladen, the Percy, Expedition in H.M.S. Sealark, J.
Stanley Gardiner, 43, 184, 294

Slater (Miss I. L.), the Highest Silurian Rocks of the
Ludlow District, 312

Slator (A.), Chemical Dynamics of Alcoholic Fermentation
by Yeast, 262

Slipher (Mr.), Discovery of a Third New Comet, 1905d,
182; Observations of Standard Velocity Stars, 326
Smart (B. J.), Removal of Nitrous Acid from Concentrated
Nitric and Sulphuric Acid, 430

Smith (C. H.), on Colonial Dutch Architecture, 64
Smith (F. B.), Agricultural Education, 42

Smith (G. O.), a Geological Reconnaissance across the
Cascade Range, 376; Geology of the Perry Basin in
South-eastern Maine, 593

Smith (H. G.), Lemon-scented Leptospermum, 456
Smith (James A.), Motor-Boats, 572

Smith (N.), the Slow Combustion of Carbon Disulphide,
262

Smith (R. Greig), a Gelatin-hardening Bacterium, 24
Smith (Prof. Robert H.), Commercial Economy in Steam
and other Thermal Power Plants as Dependent upon
Physical Efficiency, Capital Charges, and Working Costs,
338
Smithells (Prof. Arthur, F.R.S.), Gesammelte Abhandl-
ungen van Robert Bunsen, 147; Neuere Anschauungen

auf dem Gebiete der anorganischen Chemie, Prof. A.
Werner, 433; Oscillation of Flame Cones, 512
Smoke Abatement; a Manual for the Use of Manufac-
turers, Inspectors, Medical Officers of Health, Engineers,
and Others, William Nicholson, 411

Smyth (A. Watt), Text-book of Hygiene Based on Physi-
ology for the Use of School Teachers, 170
Smyth (H. Warington), Mast and Sail in Europe and Asia,
536

Smythe (Dr. J. A.), Case of Unconformity and Thrust in
the Coal-measures of Northumberland, 623

Snow Telescope, Some Tests of the, Prof. Hale, 518
Snyder (Prof. H.), Soils and Fertilisers, 266
Society of Chemical Industry, 430, 525, 598
Sociological Society, 94, 503

Sociology, Biological Foundations of, Dr. G. Archdall
Reid, 94

Soddy (Frederick), the Second Law of Thermodynamics,
125; Atomic Disintegration and the Distribution of the
Elements, 151; the Present Position of Radio-activity,
Lecture at Röntgen Society, 285

Soils Bodenkunde, E. Ramann, 266; Soils and Fertilisers,
Prof. H. Snyder, 266

Solacolu (Th.), Sterile Fruits Developed without the Inter-
vention of the Male Element, 143

Solar Commission at Innsbruck, Report of the Meeting of
the, 352

Solar Cycle, a 300-Year Climatic and, Thos. W. Kings-
mill, 413

Solar Eclipse: Italian Observations of the Recent Solar
Eclipse, Cl. Rozet, 38; the Total Solar Eclipse of
August 30, J. Y. Buchanan, F.R.S., 173; Ionisation of
the Atmosphere during, Charles Nordmann, 208; Solar
Eclipse of 1905, Dr. W. J. S. Lockyer, 537; Effect of
Solar Eclipse on Fish, A. Mosely, 584; Employment of
Selenium Cells during Total Solar Eclipse, 617; the
Total Solar Eclipse of the Sun of January, 1907, Prof.
David Todd, 617

Solar Granulations, Photographs of, Prof. Hansky, 255
Solar Observatory on Mount Wilson, California, the Con-
tributions from the Solar Observatory of the Carnegie
Institution of Washington, Prof. G. E. Hale, 67
Solar Phenomena, a 300-Year Cycle in, H. W. Clough, 38
Solar Research, a Programme of, Prof. Hale, 494
Solar Surface, Granulations on the, Prof. A. Hansky, 401;
W. E. Rolston, 401

Solar System, the Evolution of the, F. R. Moulton, 87
Soldier's Stature, Result of War affected by, John H.
Twigg, 340, 441

Solids, the Diffusion of, John H. Howell, 464
Sollas (Prof., F.R.S.), on the Continent of Africa in Re-
lation to the Physical History of the Earth, 91; the Rocks
of Cape Colville Peninsula, Auckland, New Zealand, 234;
the Age of the Earth and other Geological Studies, 513
Solly (R. H.), Minerals Recently Found in the Binnenthal,
167

Solomon (Maurice), the Theory of Experimental Electricity,

W. C. D. Whetham, 169; Electric Railways, Theoretic-

ally and Practically Treated, S. W. Ashe and J. D.
Keiley, 169; Modern Electric Practice, 169
Sommeil, Esquisse d'une Théorie biologique du, Dr. Ed.
Claparede, 293

Sound and Rhythm, W. Edmunds, Prof. John G.
McKendrick, F.R.S., 483

Sounding Stones at Ch'üfu, Shantung, Alfred Tingle, 222
Sounding Stones, Cecil Carus-Wilson, 246; T. Dillon, 270;
Cyril Crossland, 297; W. G. Barnett, 390; O. F.
Wheeler Cuffe, 464

South African Philosophical Society, 600
South African Zoology and Palæontology, 56
Southwell (T.), Last Season's Sealing in Newfoundland
Waters, 35; Last Season's Catch of the Dundee Whal-
ing Fleet, 446

Sowerby (William), Death and Obituary Notice of, 490
Spaltöffnungsapparat im Lichte der Phylogenie, die, Ein
Beitrag zur phylogenetischen Pflanzenhistologie,
Otto Porsch, 436

66

"Dr.

Spectroscopy: a Catalogue of Spectroscopic Binaries, Prof.
Campbell and Dr. H. D. Curtis, 352; Some Applica-
tions of the Theory of Electric Discharge through Gases
to Spectroscopy, Prof. J. J. Thomson, F.R.S., at Royal
Institution, 495; Spectroscopy, E. C. C. Baly, Supp. to
November 30, ix

on

Spectrum Analysis: Wave-lengths of Silicium Lines, Prof.
Frost and J. A. Brown, 17: the Spectrum of Nova
Persei, No 2, 18; Replicas of Diffraction Gratings, R. J.
Wallace, 21; Thomas Thorp, 79; the Writer of the
Notice, 79 Influence of Very Strong Electromagnetic
Fields on the Spark Spectra of Ruthenium, Rhodium,
and Palladium, J. E. Purvis, 71; the Spectrum of the
Positive Rays (Canal-strahlen), Dr. J. Stark, 79; Emis-
sion of Light by Kanal-strahlen Normal to their Direc-
tion, Dr. J. Stark, 389; the Spectrum of the Magnesium
Spark under Various Conditions, W. W. Strong, 86;
Constant-deviation Prisms, T. H. Blakesley, 95;
Absorption Spectra of Ultra-violet Rays by Vapour and
Liquids, Prof. E. Wiedemann, 101; Spectra of Bright
Southern Stars, 110; Polarisation Phenomena at Guelma
in the Eclipse 1905 August 30, H. F. Newall, 191; Spec-
troscopic Observations made during the Eclipse of the
Sun of August 30, 1905, P. Salet, 191-2; Eclipse Spectra,
M. Salet, 208; Selective Reflection by Various Crystals
in the Infra-red Spectrum, J. T. Porter, 182; Further
Results obtained with the Spectroheliometer, Dr. J.
Halm, 215: Spectra of the Different Phases of the
Electric Spark, G. A. Hemsalech, 263; Spectrum of the
Spontaneous Luminous Radiation of Radium, Sir William
Huggins, K.C.B., O.M., F.R.S., and Lady Huggins,
334; the Flame Spectrum of Mercury, C. de Watteville,
350 Relations between Absorption Spectra and Chemical
Constitution, part i., Chemical Reactivity of the Car-
bonyl Group, A. W. Stewart and E. C. C. Baly, 382;
part ii., the Quinones and a-Diketones, E. C. C. Baly
and A. W. Stewart, 382; part iii., Nitranilines and Nitro-
phenols, E. C. C. Baly, W. H. Edwards, and A. W.
Stewart, 382; Zur Theorie der Spectrallinien, Prof. F.
von Lindemann, 392; the Metallic Arc in High Vacua,
R. E. Loving, 399; Sun-Spot Spectra, Profs. Hale and
Adams, 425; Influence of Very Strong Electromagnetic
Fields on the Spark Spectra of (a) Vanadium, (b) Pla-
tinum and Iridium, J. E. Purvis, 527; Remarkable
Variation in the Spectrum of Boötis, Drs. H. Luden-
dorff and G. Eberhard, 474: Spectral Series in Relation
to Ions, Dr. J. Stark, 533; Stars having Peculiar Spectra,
Prof. Pickering, 545: Mrs. Fleming, 545; the Con-
tinuous Spectrum of the Chromosphere, M. Deslandres,
592 Theory of the Widening of Lines in the Spectrum,
Prof. J. J. Thomson, 599; High-level Chromospheric
Lines and their Behaviour in Sun-Spot Spectra, Prof.
A. Fowler, 599: Investigations of Infra-red Spectra,
William W. Coblentz, 619

Sponge Fishery of the Bahamas, 252
Sponges, Fresh-Water, obtained from Lakes Victoria
Nyanza, Tanganyika, and Nyasa, R. Kirkpatrick, 526
Sport: Chasse, Élevage et Piégeage, A. de Lesse, 26
Sporting Sketches, E. Sandvs. 149

Sprengel (Dr. H. J. P., F.R.S.), Death of, 274; Obituary
Notice of, 302

Spring (Prof. W.), the Colour of Natural Waters, 159
Spurrell (H. G. F.), Articulation of the Vertebrate Jaw, 430
Squire (W. A.), on the Art of the Bushman, 66
Ssetschenoff (Prof. Iwan Michaelowitsch),
Obituary Notice of, 133

Death and

Standard Atlas of England and Wales, 218
Stansfield (Herbert), Behaviour of Liquid Films formed
from a Solution of Saponin in Water, 455; Observations
and Photographs of Black and Grey Soap Films, 597
Stanton (Dr. T. E.), Resistance of Iron and Steel to Re-
versals of Direct Stress, 617

Stark (Dr. J.), the Spectrum of the Positive Rays (Canal-
strahlen), 79; Emission of Light by Kanal-strahlen
Normal to their Direction, 389; Spectral Series in Rela-
tion to Ions, 533

Stars: Photographic Star Catalogue, 18; the Spectrum of
Nova Persei No. 2, 18; Radial Velocities of Certain
Variable Stars, Prof. Frost, 39; a Suggestion for the
Next International Scheme, W. E. Cooke, 63; Catalogue
of Variable Stars, 87; Star Calendar for 1906, 87;
Spectra of Bright Southern Stars, 110; a Catalogue of
4280 Stars, 110; Catalogue of Binary Star Orbits, Prof.
R. G. Aitken, 136; Nova Aquile No. 2, J. A. Park-
hurst, 136; Nebulosity around Nova Aquilæ, Prof. Frost,
279; Prof. E. C. Pickering, 279; the Supposed Nebu-
losity around Nova Aquila No. 2, Prof. Frost, 518;
How to Know the Starry Heavens, Edward Irving, 196;
Measures of Double Stars, Messrs. Lewis, Furner, and
Bowyer, 208; Micrometer Measures of Double Stars,
H. E. Lau, 232; Double Star Orbits, Prof. Doberck,
305, Micrometer Measures of Struve Double Stars, Dr.
H. E. Lau, 495: the Orbit of Ursa Majoris, N. E.
Nörlund, 255; Right Ascensions of the Eros Comparison
Stars, Dr. Fritz Cohn, 305; Observations of Standard
Velocity Stars, Mr. Slipher, 326; a Catalogue of Spec-
troscopic Binaries, Prof. Campbell and Dr. H. D. Curtis,
352: Observations of Eros, 375; Catalogue of Stars
within Two Degrees of the North Pole, Dr. Caroline E.
Furness, 375; the Increasing Period of B Lyræ, Dr.
Alex. W. Roberts, 375; the Ring Nebula in Lyra, Dr.
Newkirk, 448; Prof. E. E. Barnard, 448; Twenty-five
New Variable Stars, Miss Leavitt, 448; Remarkable
Variation in the Spectrum of Boötis, Drs. H. Luden-
dorff and G. Eberhard, 474; Catalogue of 3799 Bright
Stars, J. Bossert, 495; the System of the Stars, Agnes
M. Clerke, Prof. R. A. Gregory, 505; New Variable
Stars in the Region about y Sagittæ, Prof. Wolf, 518;
a Systematic Study of Faint Stars, Prof. Pickering, 545;
Stars having Peculiar Spectra, Prof. Pickering, 545;
Mrs. Fleming, 545; Objective-prism Determinations of
Stellar Radial Velocities, Geo. C. Comstock, 592; the
Observation of Long-period Variables, Prof. Pickering,
592; Der Bau des Fixsternsystems mit besonderer
Berücksichtigung der photometrischen Resultate, Prof.
Hermann Kobold, 603; Catalogue of Pleiades Stars, Dr.
R. S. Dugan, 617

Statics: an Introduction to the Design of Beams, Girders,
and Columns in Machines and Structures, with Examples
in Graphic Statics, W. H. Atherton, 1; Les Origines de
la Statique, P. Duhem, Supp. to November 30, ix
Statistics: Mortality caused by Wild Animals and Venom-
ous Snakes during 1904, 15; the Decline of Human
Fertility, Drs. Newsholme and Stevenson, 230
Stature, Result of War affected by Soldier's, John
H. Twigg, 340, 441; Major-General W. E. Warrand, 414
Steam: Heat and Steam (Elementary), an Introductory
Supplement to a Text-book of Marine Engineering for
the Use of Naval Officers, Engineer-Commander Tomp-
kins, 557

Stebbing (E. P.), the Avenues and Fruit Gardens of Quetta,
253: the "Borer" Beetle, 323; Bark-boring Beetles in
Pine Forests, 348

Steel, Concrete, a' Treatise on the Theory and Practice of
Reinforced Concrete Construction, W. Noble Twelvetrees.
457

Steel, Elementary Practical Metallurgy, Iron and, Percy
Longmuir, A. McWilliam, 509

Steele (Dr. B. D.), the Accurate Measurement of Ionic
Velocities, 166

Steinmann (Dr. G.), Geologische Beobachtungen in den
Alpen, 546

Steinwehr (H. v.), Influence of the Size of Crystals of Mer-
curous Sulphate on its Relations to Electromotive Force,
37

Stellar Magnitude of the Sun, Prof. Ceraski, 279
Stellar Universe, Our, Thomas Edward Heath, W. E.
Rolston, 581, see Stars

Step (Edward), Wayside and Woodland Blossoms, 3
Stephens (Dr. J. W. W.), the Practical Study of Malaria
and other Blood Parasites, 148

Stevens (Consul), Agriculture in the Trans-Caucasus for
the Year 1905, Ravages of Locusts, 324

Stevens (Mr.), Structure of the Placenta of an Elephant, 59
Stevenson (Dr.), the Decline of Human Fertility, 230
Stewart (A. W.), Relations between Absorption Spectra
and Chemical Constitution, part i., Chemical Reactivity
of the Carbonyl Group, 382; part. ii., the Quinones and
a-Diketones, 382; Nitranilines and Nitrophenols, 382
Stewart (C.), on the Climate of South Africa, 19
Stiatteri (Pre. Raffaello), Determination of the Distances
of the Epicentre of an Earthquake from the Duration of
the Preliminary Tremors, 206

Stillman (Thomas B.), Engineering Chemistry, a Manual
of Quantitative Chemical Analysis for the Use of
Students, Chemists, and Engineers, 387
Stimulus and Memory, 338

Stomata and Phylogeny, 436

Stone Age of the Zambesi Valley, the, and its Relation in
Time, Col. H. W. Feilden, C.B., 77

Stonehenge, Notes on, Sir Norman Lockyer, K.C.B.,
F.R.S., 153, 224

Stones, Sounding, at Ch'üfu, Shantung, Alfred Tingle, 222
Stones, Sounding, Cecil Carus-Wilson, 246; T. Dillon,
270; Cyril Crossland, 297; W. G. Barnett, 390; O. F.
Wheeler Cuffe, 464

Stoney (G. G.), the Evolution of the Steam-Turbine, 157
Stout (Prof.), Things and Sensations, 17
Strachey (Lieut.-General Sir Richard, F.R.S.), Symons
Gold Medal awarded to, 84

Straits of Messina, Currents in the, Prof. Platania, 621
Strange Pets and other Memories of Country Life, My,
R. Bell, 76

Stratton (F. J. M.), Planetary Inversion, 599
Strömgren (Dr. E.), Comet 1905c, 208; New Elements and
Ephemeris for Comet 1905c, 232; Comet 1906c, 518, 569
Strong (W. W.), the Spectrum of the Magnesium Spark
under Various Conditions, 86

Strutt (Hon. R. J., F.R.S.), Radio-activity of Ordinary
Matter in connection with the Earth's Internal Heat,
173; Radio-activity, Prof. E. Rutherford, F.R.S., 289
Struve Double Stars, Micrometer Measures of, Dr. H. E.
Lau, 495

Submarine Telegraph Cables, Death of Jules Despecher,
321

Sudborough (J. J.), Influence of Substituents in the Trini-
trobenzene Molecule on the Formation of Additive Com-
pounds with Arylamines, 551

Sugar and the Sugar Cane, Noël Deerr, 75
Sugar, Beet-, the Growth of, in England, 539
Sulphur-Dioxide on Plants, the Action of, Prof. Dr. A.
Wieler, F. Escombe, 385

Sumpner (Dr. W. E.), the Theory of Phasemeters, 47
Sun the Zodiacal Light to the North of the Sun, Prof.
Newcomb, 161; the Figure of the, Dr. C. L. Poor, 279;
Stellar Magnitude of the, Prof. Ceraski, 279; Magnetic
Observations during the Total Eclipse of the Sun, Father
P. Cirera, 400; the Solar Eclipse of 1905, Dr. W. J. S.
Lockyer, 537; Photographies de la Granulation Solaire
faites à Poulkowa, Prof. A. Hansky, W. E. Rolston,
401; the Temperature of the, Henri Moissan, 569
Sun-spot Minima and Volcanic Eruptions, Possible Rela-
tion between, H. I. Jensen, 210

Sun-spot Spectra, Profs. Hale and Adams, 425
Sun-spots, the Periodicity of, Prof. Arthur Schuster,
F.R.S., at Royal Society, 378

Surface, the Maximum Number of Double Points on a,
A. B. Basset, F.R.S., 246

Sutton (J. R.), Results of Observations made with a Black
Bulb Thermometer in vacuo, 324

Swedish Chemical Industries, Development of the, 399
Swinburne (J.), Temperature and Efficiency of Thermal
Radiation, 95; Physics of Ore Flotation, 214