Nature, 

 February 2, 1924, 



Title Index 



H 



Spectra : of Metals to be obtained with very small 

 Quantities of Material, An Arrangement of the 

 Electric Arc in a Vacuum allowing the, Mile. Berthe 

 Perrette, 814 ; The Origin of, Prof. J. C. McLennan, 

 419 ; P. D. Foote and F. L. Mohler, 498 



Spectral Lines : of Iron, On the Irregularities of the, and 

 the Atomic Magnetic Field, Prof. H. Nagaoka and 

 Y. Sugiura, 359 ; The Width of, due to Collision and 

 Quantum Theory, G. Breit, 228 



Spectroscopic : and Trigonometrical Parallaxes, A. 

 Pannekock ; W. J. Luyten, 702 ; Binaries, Irregularities 

 in the Velocity Curves of, H. D. Curtis, 227 



Spectrum, the Visible, The Differential Bactericidal Effect 

 of, J. S. V. d. Lingen, 256 



Spezieller Kanon der zentralen Sonnen- und Mondfinster- 

 nisse, welche innerhalb des Zeitraums von 600 bis 

 1800 N. chr. in Europa sichtbar waren, J. F. Schroeter, 



389 

 Spherical Masses, Curious, in Ashdown Sands, G. Abbott, 



539 



Spinal Flexor Reflex, a comparison between certain 

 Features of the, and of the Decerebrate Extensor 

 Reflex respectively, E. G. T. Liddell and Sir Charles 

 Sherrington, 709 



Spiral Nebulae : as Dust-Clouds, The, J. H. Reynolds, no ; 

 Prof. Lindemann's Theory of the. Prof. Perrine ; 

 A. C. Gifford, 520 ; The, J. H. Reynolds, 668 



Spitsbergen, the Merton College Expedition to, 554 



Spleen, Influence of removal of the, in Cases of Insufficient 

 Feeding, C. Richet, 408 



Sponges : Circulation of Water in. Dr. G. P. Bidder, 404 ; 

 from the Abrolhos Island, Prof. A. Dendy and Miss 

 Leslie M. Frederick, 118 



Spruce Budworm Problem in Canada, The, J. W. Munro 

 and W. E. Hiley, 885 



Stanford University, Address to a Graduate Class at. 

 Prof. Millikan, 909 



Star : -gauges at Lund Observatory, 520 ; People, The, 

 G. Johnson, 783 



Starch in Plant Cells, the Formation and Digestion of, 

 A. Maige, 674 



Stars • B-type, Silicon Lines in, H. Barrell, 65 ; fifty-seven. 

 Parallaxes of, Mildred Booth and F. Schlesinger, 176 ; 

 in the Milky Way and at the Galactic Pole, S. I. 

 Bailey, no ; of Type B, Spectroscopic Parallaxes of, 

 W. S. Adams and A. H. Joy, 403 ; one hundred bright, 

 Photovisual Magnitudes of, E. S. King, 815 ; The 

 Temperatures of the, H. Dingle, 167 ; The Wonders 

 of the, J. McCabe, 201 ; Variable, 5 



State, Science and the, 609 ; P. Farrer, 689 



Statesman's Year Book, The, 1923, edited by Sir John 

 Scott Keltic and Dr. M. Epstein, 94 



Statistical : Bibliography in relation to the Growth of 

 Modern Civilization : Two Lectures delivered in the 

 University of Cambridge in May 1922, E. W. Hulme, 

 585 ; Method, Prof. T. L. Kelley, 825 



Steel : Erection, Handbook of, M. C. Bland, 617 ; the 

 Magnetism of, Effect of quenching from above the 

 Carbide Transition Temperature upon, A. A. Dee, 26 



Steels under Traction, The Magnetic testing of, L. Fraichet, 

 75 



Stellar: Mass, A small, P.Meier, 454; Masses: Russell, Adams, 

 and Joy, 454 ; Studies in. Dr. A. Hertzsprung, 555 ; 

 Parallax, Measurements of, at the Dearborn Observa- 

 tory, P. Fox, 226 ; Positions and the Einstein Light- 

 bending, O. Z. Bianco, 372 ; Spectra, Distribution 

 of the Energy in, made at the Pic du Midi Observatory 

 in 1920 and 1921, J. Baillaud, 380 ; Velocities : The 

 Form of the Distribution Law of, W. J. Luyten, 227 ; 

 The want of Symmetry in. Dr. G. Stromberg, 600 



Steneosaurus, Vertebraj of, with Discoloured Markings, 

 R. T. Gunther, 910 



Stereoscopic Projection, 146 



Stereoskopie im Dienste der Photometric und Pyrometrie, 

 Die, Prof. C. Pulfrich, 468 



Stereotyping, A: H. Mundey and J. Cartland, 490 



Sterigmatocystis nigra, the Determining Factor in the 

 Formation of Conidia in, M. Molliard, 119 



Stilpnomelane, from North Wales, A. F. Hallimond and 

 F. R. Ennos, 779 



Stirling's Theorem, J. Henderson, 96, 726 ; G. J. Lidstone, 



283 

 Stone Yokes from Mexico and Central America, S. K. 



Lothrop, 217 

 Strasbourg University, conferment of an honorary degree 



upon Dr. S. Flexner, 255 

 Stratigraph (British Isles), An Introduction to. Dr. L. D. 



Stamp, 390 

 Strawberries, " Red Plant " in, E. Ballard and G. S. 



Peren, 602 

 Streatfeild Memorial Lecture, The, E. M. Hawkins, 667 

 Strontium, A new Reaction for the Preparation of, C. 



Matignon, 958 

 Structures : in Sea-Water, The Deterioration of. Third 



(Interim) Report of the Committee of the Institution 



of Civil Engineers, edited by P. M. Crosthwaite and 



G. R. Redgrave, 741 ; in the Sea, Deterioration of, 741 

 Students, Interchange of, 849 

 Stypandra glauca (a suspected Poison Plant), M. Henry 



and W. L. Hindmarsh, 256 

 Subject Index to Periodicals, 1920, The, F. : Education 



and Child Welfare, 721 

 Sudan, An Agricultural Mission to the, 734 

 Sugar : Cane, The Cultivation of, in Java : an Elementary 



Treatise on the Agriculture of the Sugar Cane in 



Java, and more especially on its Cultivation on the 



Krian Sugar Estate, R. A. Quintus, 824 ; -canes. 



Some Abnormal, T. Steel, 924 ; Factory at St. 



Augustine, Trinidad, establishment of a Model, 737 ; 



Maple, The Translocation of Carbohydrates in the, 



J. Adams, 207 

 Sugars in the Cell and Amylogenesis, The Metabolism of 



the, A. Maige, 815 

 Sukkur, Province of Sind, Irrigation Work at, 699 

 Sulphates and Chert in the Nullagine Series, Secondary, 



E. S. Simpson, 75 

 Sulphochromatic Oxidation of the Aromatic Hydro- 

 carbons and the present conception of Graphite, 



The, L. J. Simon, 304 

 Sulphonitric and Sulphonitrous Acids, The Estimation of, 



A. Graire, 780 

 Sulphur : as a Fungicide, H. C. Young, 634 ; Vapour in 



Air at the Ordinary Temperature, The Dift'usion of, 



M. Chavastelon, 888 

 Sumatra, Rainfall in. Dr. J. Boerema, 914 

 Summer Time : 630 ; in Great Britain, End of, 401 

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



J. Guillaume, 711, 887 ; The, and the Weather, 



C. G. Abbot and colleagues, 596 

 Sunspot Activity, 403 

 Sunspots : and Air Temperature in America, A. J. Henry, 



602 ; and Changes in Solar Radiation, Prof. Abbot, 



738 ; Polarities of, Prof. Hale and Mr. EUerman, 738 

 Superficial Solutions, The Isothermal Compression and 



Expansion of, A. Marcelin, 152 

 Surface : Tension and Density, Relation between, A. 



Ferguson, 151 ; Water in Indian Seas, The Influence 



of Barometric Pressure on the Specific Gravity of 



the, Major R. B. S. Sewell, 789 

 Surveying and Drawing Instruments, etc., Catalogue of, 



C. F. Casella and Co., Ltd., 769 

 Sweden, Precipitation in, 142 



Swedish Federation of University Women, a prize fellow- 

 ship of the, awarded to Mrs. M. W. Onslow, 674 

 Swiss : National Park : and its Mollusca, The, E. Biitikofer, 



248 ; The, Prof. C. Schroter, 478 ; Society of Natural 



Science, The Zermatt Meeting of the, Mrs. Grace 



Chisholm Young, 605 

 Switzerland, Bibhography of Books deaUng with, 291 

 Sydney, The Warped Littoral around, Pt. I., G. Taylor, 256 

 Symbiosis : in Animals and Plants, Prof. G. H. F. Nuttall, 



657; Studies in: J. McLuckie, No. 3, 76; IV., 348; 



v., 747 

 Symmetry, Molecular and Crystal, T. V. Barker, 96 

 Symons gold medal of the Royal Meteorological Society, 



The, awarded to Dr. T. Okada, 948 

 Synthetic Colouring Matters : Prof. J. F. Thorpe, 531 ; 



Dye-stuffs derived from Pyridine, Quinoline, Acridine, 



and Xanthene, Prof. J. T. Hewitt, 531 



