Nature, T 

 August 12, 1922J 



Index 



xlix 



Spectrophotometer, A Non-polarising, A. J. Bull, 430 



Spectrum : Lines, A New Series of, F. S. Brackett, 209 ; 

 of Magnesium, Evolution of the, under the Influence of 

 Increasing Electrical Actions, A. de Gramont and 

 G. A. Hemsalech, 258 



Spinoza Society, The, 486 



Spiral : Nebula M 81, Internal Motions in the. Dr. van 

 Maanen, 186; Nebulae, Movements in, Dr. J. H. Jeans, 

 55 ; Movements in, Dr. van Maanen, 249 



Spirals and Clusters, Radial Motions of, C. Wirtz, 791 



Spitsbergen : Central, The pre-Devonian Basement Com- 

 plex of, G. W. Tyrrell, 257; Norwegian Explorations in, 

 A. Hoel, 561 ; The Ecology of the Flora of, J. Walton, 

 396 



Spolia Runiana — V., Sir W. A. Herdman, 396 



Sponge-spicules, Prof. A. Dendy, 191 



Spruce Bud Worm, Offer of a Prize for a Method of Com- 

 bating and Suppressing the, F. J. D. Bamjum, 689 



Sprengel Pump, A Defect in the : its Causes and a Remedy, 

 J. J. Manley, 225 



Star : A Very Massive, Prof. Plaskett, 791 ; An Abnormal, 

 Observation of, by the Heterochrome Photometer of 

 the Paris Observatory, C. Nordmann and M. Le 

 Morvan, 127 ; Atlas and Telescopic Handbook, A 

 (Epoch 1920), for Students and Amateurs, A. P. 

 Norton, 269 ; Distances, Deduction of, from Proper 

 Motions, Prof. H. N. Russell, 121 ; Long-period 

 Variable, A Unique, Major W. J. S. Lockyer, 530 ; 

 Magnitudes, Determination of, by a Thermopile, J. 

 Schilt, 528 ; e of the Great Bear, A Singular Pheno- 

 menon presented by the, C. Nordmann and M. Le 

 Morvan, 463 ; The Deviations of Light Rays passing 

 in the Neighbourhood of a, M. Ferrier, 831 



Stars : Binary, Colours of, P. Doig, 824 ; Binary, The 

 Origin of. Dr. J. H. Jeans, 89 ; Catalogue of 1068 

 " Intermediate," situated between 51° and 65° South 

 Declination for the Equinox 1900, 743 ; Double, A 

 Catalogue of, 592 ; Effective Temperatures of. Dr. 

 W^ W. Coblentz, 560 ; Evening, 488 ; New, The 

 Search for, 824 ; of Class A in the Solar Cluster, Dr. 

 H. Shapley and Miss Annie J. Cannon, 386 ; of the /3 

 Canis Majoris Type, F. Henroteau, 422 ; the Apparent 

 Diameter of, A New Interference Method for Measur- 

 ing, A. Danjon, 831 ; The Determination of the 

 Diameter of, by the Interference Method, M. Hamy, 

 599 ; The Pressures of the Atmospheres of the, and 

 the Sun, P. Salet, 158 



Stasite, a New Mineral, Dimorphous with Dewindite, A. 

 Schoep, 567 



State Medicine in London, an Institute of, Offer of the 

 Rockefeller Foundation, for, 280 



Statistical Method, 473 



Statistics, A First Course in, D. C. Jones, 473 



Steel: Industry of South Yorkshire, The, Prof. C. H. 

 Desch, 691 ; Manufacture, Electrothermic Processes 

 in, 768 ; Tempered, The Colours of. Prof. C. V. Raman, 

 105 ; Tempering in, The Penetration of, G. Charpy 

 and L. Grenet, 763 ; The Electro-metallurgy of, C. C. 

 Gow, 768 



Sterigmatocystis nigra : A New Acid Fermentation pro- 

 duced by, M. Molhard, 567 ; The Toxicity of various 

 Nitrophenols for, L. Plantefol, 127 



Steward Observatory, University of Arizona, A 40-inch 

 Disc made in America, 755 

 )mata. Behaviour of, J. V. G. Loftfield, 387 

 •one : Age, The New, in Northern Europe, Prof. J. M. 

 Tyler, 302 ; Implements in the Perth Museum, 

 Catalogue of the, J. Asher, 423 ; Preservation of, N. 

 Heaton, 287, Prof. A. P. Laurie, 814 



Stonehenge : Concerning the Four Stations, E. H. Stone, 

 410 ; Recent Excavations at. Col. W. Hawley, 781 



Strangers' Hall, Norwich, etc.. Offer of, to the Norwich 

 Corporation, by L. G. BoUngbroke, 84 



Strasburger's Text-book of Botany. Rewritten by Dr. H. 



Fitting, Dr. L. Jost, Dr. H. Schenck, Dr. G. Karsten. 



Fifth English edition Revised with the Fourteenth 



German edition by Prof. W. H. Lang, 740 



iratiotes. The Geological History of the Genus, Miss M. 



E. J. Chandler, 598 

 ream-flow and Erosion, Forests in Relation to, 417 



stress. Effect of, on the Heat Conductivity of Metals, Dr. 

 Bridgman, 793 ; Optical Effect in Transparent 



Solids strained beyond the Elastic Limit, Prof. L. N. 



P. Filon and H. T. Jessop, 326 

 Stringybark, An Additional Blue-leaf, J. H. Maiden, 226 

 Stupors, Benign, A Study of a New Manic-depressive 



Reaction Type, Dr. A. Hoch, 743 

 Suberone, Some Derivatives of, M. Godchot and P. Brun, 



399 

 Submarine, Coast Sediments, The Neutral Lines of, J. 



Thoulet, 399 ; Periscope, A Projective Treatment of 



the, T. Smith, 431 ; Periscopes, Dr. A. Gleichen, 490 ; 



Volcanic Eruptions, Deep, J. Thoulet, 632 

 Sucrase, The Law of Action of, H. Colin and Mile. A. 



Chaudun, 194 

 Sulphur and Sulphur Derivatives, Dr. H. A. Auden, 235 ; 



in Illinois Coal beds, H. F. Yancey and T. Eraser, 354 ; 



in Iron Pyrites, The Estimation of, G. Chaudron and 



G. Juge-Boirard, 463 

 Summer Time : Act, Effect of the, on the Health of School 



Children, 656 ; Bill, 214, 384 

 Sun : Observations of the, made at the Lyons Observatory, 



J. Guillaume, 29, 631 ; Observations, the Partial 



Eclipse of the, on March 28, 1922, J. Mascart, 599 ; 



The Atmosphere of the. Measurement of Pressure in, 



A. Perot, 599 ; Total Eclipse of the, 591 ; Variability 



of the. New Observations on the, C. G. Abbot, 30 

 Sun-fish, The Buoyancy of the, Capt. G. C. C. Damant 



and Prof. A. E. Boycott, 578 

 Sunlight : The Action of, Dr. C. W. Saleeby, 11, 274 

 Sun's Rotation, The, from Spectroheliograms, Prof. P. 



Fox, 422 

 Sun-spots in Latitude, The Periodicity and the Movement 



of the, explained by the Pulsation of the Nucleus, E. 



Belot, 226 

 Surface Curvature at the Focus of an Astronomical Object 



Glass, The Effect of Changes of. E. W. Taylor, 566 ; 



Energy and Forces of Short Range, Historical Notes 



upon, W. B. Hardy, 375 ; Tension and Narcosis, W. 



Kopaczewski, 226 

 Surveying for Oil Geologists, 474 

 Suzette Layer, Our Knowledge of the, P. Termier and L. 



Joleaud, 29 

 Swallows, British, The Migration of. Dr. A. L. Thomson, 



346 

 Swedish Academy of Sciences, Prof. M. Planck elected a 



Foreign Member of the, 384 

 Swine, Progress of Metabolism after Food in, Prof. T. B. 



Wood and Dr. J. W. Capstick, 730 

 Swiss Travel Almanac, 809 



Sydney Harbour, Proposed Cantilever Bridge across, 120 

 Sylviculture, Guide pratique de. Dr. F. Frankhauser. 



Troisieme edition fraufaise par M. Petitnermet, 7 

 Symbiose, intrazellularer, Tier und Pflanze in. Prof. P. 



Buchner, 538, 576 

 Symbiosis, Studies in. Prof. F. W. Gamble, 538, 576 

 Symbiotic Bacteria and Phosphorescence, F. A. Potts, 814 

 Symons Gold Medal, The, presented to Col. H. G. Lyons, 



117 

 Synthetic Dyes as Antiseptics and Chemotherapeutic 



Agents, Prof. C. H. Browning, 750 

 SyphiUs : The Preventive and Curative Action in, of the 



Acetyl Derivative of Oxyaminophenylarsinic Acid 



(Sodium Salt), C. Levaditi and A. Navarro-Martin, 



567 ; The Preventive Action in, of the Acetyl 



Derivative of Oxyaminophenylarsinic Acid (Sodium 



Salt), L. Fournier, C. Levaditi, A. Navarro-Martin 



and A. Schwartz, 800 

 System : The, Na^O— CO,— NaCl— H^O, F. A. Freeth, 461 



Taboo and Genetics : A Study of the Biological, Socio- 

 logical, and Psychological Foundation of the Family, 

 Drs. M. M. Knight, Iva L. Peters, and Phyllis Blan- 

 chard, 235 , . , ^ j-.- r 



Teeth : in Children, On the Relationship of Condition of 

 the, to Factors of Health and Home Environment, 

 E. C. Rhodes, 409 ; of the Nation, The, Prof. W. D. 

 Halhburton, 356 



Telegraphic Transmission of Photographs, Drawings, and 

 Manuscripts, E. Belin, 463, 686 



Telephony, Wireless, Universal, 719 



Telescope Objectives, The Adjustment and Testing of. 

 Third edition, 338 



