XXXV1 
Title Index 
Nature, 
August 11, 1923 

Rat Repression, The Rodier System of, A. E. Moore, 671 
Relativity-predicted Mechanical Effect in the Electro- 
magnetic Field, A, Prof. A. M‘Aulay, 325 
Resonance: Multiple, P. Rothwell, 254; Radiation, 
Destruction of the Polarisation of, by Weak Magnetic 
Fields, Prof. R. W. Wood and A. Ellet, 255 
Rodier System of Rat Repression, The, A. E. Moore, 671 
Russian Proper Names, Transcription of, Prof. B. Brauner, 
290 
Sand, Crushed, Law governing the Connexion between the 
Number of Particles and their Diameters in Grinding, 
C. E. Blyth, Dr. G. Martin, and H. Tongue, 842 
Sarsen Stones, C. Carus-Wilson, 292 
Science: and Armaments, Dr. L. C. Martin, 82, 429; 
Dr. J. Weir French, 186; and Economics, W. W. 
Leisenring, 571, 846; St. George Lane Fox Pitt, 670 ; 
Prof. F. Soddy, 669; The Social Influence of, Ad. K., 
361; F.S. Marvin, 362 
Scientific Periodicals for Czech Students, B. O. Tufnell, 
397 
Seeds, the Germination of, Effect of Moonlight on, 
Elizabeth Sidney Semmens, 49 
Segregation, Selection and, Prof. A. Willey, 602; Sir 
G. Archdall Reid, 806 
Selection and Segregation, Prof. A. Willey, 602; Sir 
G. Archdall Reid, 806 
Silent Zone in Explosion Sound-areas, The, Dr. C. 
Davison, 117 
Silica, Vitreous, The Hardness of, C. Johns and Prof. 
C. H. Desch, 15 
Smell and Specific Gravity, J. H. Kenneth, 151 
Soaring Flight and the ‘“ Olfactory’ Organs of Birds, 
Lt.-Col. W. E. M‘Kechnie, 48 x 
Soil Reaction, Water Snails and Liver Flukes, Dr. W. R. G. 
Atkins and M. V. Lebour, 83; C. L. Walton, 117 
Specific Gravity, Smell and, J. H. Kenneth, 151 
Spivanthes Autumnalis, Prof. F. O. Bower, 185; E. P. 
Smith; J. B. Simpson, 291 
Stark Effect, Easy Method of observing the, Prof. H. 
Nagaoka and Y. Sugiura, 431 
Stirling’s Theorem, Prof. J. Satterly, 220; J. Strachan, 
397; H. E. Soper, 601 
Stoat’s Winter Pelage, The, Sir Herbert Maxwell, 220; 
J. Parkin; Dr. J. Ritchie; R. de J. F. Struthers, 360 
Stonehenge : Concerning the Four Stations, E. H. Stone, 
220 
Subject Index to Periodicals, The, E. W. Hulme, 360 
“ Sucking-fish,”” The Adhesive Apparatus of the, Sunder 
Lal Hora, 668 
Sugar: Blood, Effect of Plant Extracts on, Prof. J. B. 
Collip, 571; Cane Mealy-bug, The, Prof. T. D. A. 
Cockerell, 223 
Symmetry, Molecular and Crystal, T. V. Barker, 632; 
Dr. J. W. Evans ; G. Shearer and W. T. Astbury, 740 
Tertiary Brachiopods from Japan, J. W. Jackson, 809 
Tesla Spectra: and the Fraunhofer Effect in Complex 
Compounds, J. K. Marsh and Prof. A. W. Stewart, 115 ; 
of Complex Compounds, Prof. V. Henri; J. K. Marsh 
and Prof. A. W. Stewart, 289 
Thermal Opalescence in Crystals and the Colour of Ice 
in Glaciers, Prof. C. V. Raman, 13 
Time Relations in a Dream, Dr. W. R. G. Atkins, 117; 
H. F. Biggs, 290 ; M. Gheury de Bray, 361 
Triode Valve in Spectrometry, Use of the, L. Bellingham, 
534 
Tropical Agriculture, Educational Problems of, Prof. 
W. R. Dunlop, 880 
Ultramicrometer, The Recording, J. J. Dowling, 742 
Upper Atmosphere, The High Temperature of the, Prof. 
F. A, Lindemann and G. M. B. Dobson, 256 
Uranium, The Relation of Actinium to, Dr. A. S. Russell, 
723 
Vertical Beam, “‘ Artificial,” W.C. Baker, 185 
Vision: and Light Sensitiveness, J. P. O’Hea, 705; 
Tactile, of Insects and Arachnida, G. H. Locket, 848 
Volcanic : Activity in Iceland and Long Distance Trans- 
port of ‘‘ Dust,” J. N. Carruthers, 255; Dust and 
Climatic Change, Prof. W. J. Humphreys, 431 
Water Snails and Liver Flukes, A. W. Stelfox; Dr. 
Monica Taylor, 49 
Waterspouts, D. Brunt; H. E. Hornby, 82 
Wave Theory, The, and the Quantum Theory, Prof. 
C. G. Darwin, 771 
Wegener Hypothesis: The, and the Origin of the Oceans, 
T. Crook, 255; The Life-cycle of the Eel in relation to, 
Dr. T. W. Fulton, 359; Dr. A. M. Davies, 496; of 
Continental Drift, The, Dr. J . Evans, 393; and 
the Great Pyramid, Dr. G. P. Bidder, 428; Prof. 
W. M. F. Petrie, 429; Botanical Aspects of, Prof. 
R. H. Compton ; The Writer of the Article, 533; The 
Zwartebergen and the, W. B. Wright, 569 — 
Wren’s, Sir Christopher, Science Museum, R. T. Gunther, 
288 
X-rays in Liquids, The Scattering of, Prof. C. V. Raman, 
185 
Zoological Nomenclature: Musca and Calliphora, Prof. 
C. W. Stiles, 115 e 
Corris and Aberllefenni (Merioneth), Geology of the 
District around, W. J. Pugh, 794 
Corrosion, Alloys resistant to, Sir Robert Robertson and 
others, 619 
Corundum Rocks, The Prochlorites of, J. Orcel, 728 
Cosmogony, Modern, Dr. H. Jeffreys, 662 
Cottage-building, A Graphical Cost Analysis of, W. H. 
Wainwright, 415 f 
Cotton, The Cuticle of, R. G. Fargher and M. E. Probert, 
Giitaw Ustversity, conferment of a degree on the Earl of 
Balfour, 688 
Creosote, Beechwood, Heavy Oils of, Specific Characters 
of the, Bordas and Touplain, 763 
Cresson, Elliott, gold medal of the Franklin Institute, 
the, presented to Dr. L. de Forest, 337 
Crime and Poisoning, Lt.-Col. J. A. Black, 268 
Criminal Responsibility, Psychology and, Dr. W. Brown, 
81 
Crinéids, The Role of the, in the History of the Secondary 
Oolitic Iron Minerals, L. Cayeux, 903 
Croix de chevalier du Mérite Agricole, awards of the, 92 
Crown Gall on Nursery Stock, H. Wormald, 274 ~ 
Crucifere, A Taxonomic Study in the, E. B. Payson, 683 
Crustacean Limb, Primitive, Character of the, E. W. 
Shann, 59 
Cryptography, A. Langie, translated by J. C. H. Macbeth, 
duyetale Analysis, New Methods of, and their Bearing on 
Pure and Applied Science, Sir William Bragg (Trueman 
Wood Lecture), Supplement (June 9) iii, 781; Growth 
in Cadmium, M. Cook, 382; Molecular and, Symmetry, 
Dr. J. W. Evans ; G. Shearer and W. T. Astbury, 741; 
Receivers for Broadcast Reception, P. W. Harris, 628 ; 
Structure of Basic Beryllium Acetate, Sir Wiliam 
Bragg, 532; The Reflection by a, of X-rays character- 
istic of Chemical Elements in it, G. L. Clark and 
W. Duane, 868 
Crystalline Liquids, Sir William Pope, 99 
Crystals: Atomic Radii in, Dr. R. W. G. Wyckoff, 720 ; 
Photo-electric Conductivity of, Drs. B. Gudden and 
B. Pohl, 859; Single, of Aluminium and other Metals, 
Dr. C. J. Smithells, 601; The Abnormal Reflection 
of X-rays by, G. L. Clark and W. Duane, 868 ; 
Unusual, G. H. Martyn, 186 
Ctenophores, Aberrant, Development of some, Prof. T. 
Komai, 95 
Cubit, An Old-World, in America, Prof. W. M. Flinders 
Petrie, 647 
Cucumber Woodlouse, Action of Simple Aromatic Com- 
pounds on the, E. R. Speyer and O. Owen, 553 
Cullum gold medal of the American Geographical Society 
awarded to E. A. Reeves, 92 
Culture Media, Organisms in, Distribution of, R. A. 
Fisher, H. G. Thornton, and W. A. Mackenzie, 443 
Cumene and p-Cymene, A New Synthesis of, L. Bert, 520 
Currant, Black, Early History of the, 411 
Curve Fitting, S. Krichewsky, 824 
Cutting Tools, Action of, H. S. Rowell, 84 
Cuttings, The Rooting of, Prof. J. Small, 823 
C Vitamins, Utilisation by the Organism of the, introduced 
through the Parents, E. Lesné and M. Vaglianos, 451 
Cyclic Growth, The Statistics of, H. S. Reed, 763 

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