Ap, 



Nature, "I 

 ril 24, 1913J 



Index 



Ccpper : Impurities in Copper and Copper Alloys, E. I-". 

 Law, Prof. Turner, F. Johnson, igq ; Coppcr-Zinc- 

 Alloys, Prof. Carpenter, igg ; Dissociation Pressures 

 and .Melting Points of the System Copper-Cuprous 

 Oxide, R. E. Slade and F. D. Farrow, 401 ; Flotation 

 Process applied to Concentration of Copper Ore, J. W. 

 Ashcroft, 402 ; Modern Copper Smelting, D. M. Lew, 

 4S4 



Coral: the Genus Aulophyllum, S. Smith, 427; Dana s 

 Proof of Darwin's Theory of Coral Reefs, Prof. W. M. 

 Davis, 632 



Cornwall Royal Polytechnic Society, 28 ; Cornwall Mega- 

 lithic Monuments, MM. E. and P. Jeanselme, 366 



Corrosion, C. E. Stromeyer, 287; Corrosion by Gravity 

 Streams, E. C. Andrews, 445 



Cotton Plant in Egypt, W. L. Balls, 667 



Cotton-boll Weevil, 339 



Crayfishes, Land, in Australia, G. W. Smith and Dr. 

 E. H. J. Schuster, 4i;3 



Crops and Methods for Soil Improvement, Alva Agee, 589 



Cryoscopy in Decahydrated Sodium Sulphate, A. Boutaric 

 and C. Leenhardt, 299 



Crystallisation of Metals by Annealing, F. Robin, 156 



Crystals : Intercrvstalline Cohesion of Metals, Dr. Beilbv, 

 2co; X-Rays and Crystals, Prof. W. H. Bragg, 

 F.R.S., 219, 360, 572 ; Crystal Space-lattice revealed 

 by Rontgen Rays, Dr. M. Laue, Dr. A. E. H. Tutton, 

 F.R.S.,"3o6; Ilmenite from Lengenbach, Prof. W. J. 

 Lewis, 375 ; Multiple Twin of Cassiterite, Prof. W. J. 

 Lewis, 375 ; Graphical Methods, Dr. A. Hutchinson, 

 375 ; Labradorite fiom Co. Down, Dr. A. Hutchinson 

 and W. C. Smith, 375 ; Calcite Crystals from a Water 

 Tank, R. F. Gwinnell, 376: Diffraction of Short 

 Electromagnetic Waves by a Crystal, W. L. Bragg, 

 402, 410; Efflorescence, C. Boulanger and G. Urbain, 

 561 ; Optical Activity and Enantiomorphism of Mole- 

 cular and Crystal Structure, T. V. Barker and J. E. 

 Marsh, 612 ; Determination of Optic Axial Angle, H. 

 Collingi idge, 612 : Graphical Determination of Angles 

 ?nd Indices in Zones, Dr. G. F. H. Smith, 612 ; 

 Goldschmidt Apparatus for Cutting Models, Dr. J. 

 Drugman, 613 ; a Nodule of Iron Pyrites, Prof. H. L. 

 Bowman, 613 ; 



Cubic Surface, the Twenty-seven Lines upon a, Prof. A. 

 Henderson, 591 



Currency : the Standard of Value, Sir D. Barbour, 

 K.C.S.T., K.C.M.G.. N. B. Dearie, 536 



Curve, Definition of a, Takeo Wada, i;t;i 



Customs of the World, edited by W. Hutchinson, 330 



Cycadacene, Dr. C. J. Chamberlain, 418 



Cyclones of the South Indian Ocean, 259 



Dactylography. H. Faulds, 189 



Dairy : Farm Dairying, Laura Rose, 131 ; Bacteria as 

 Friends and Foes of the Dairy Farmer, W. Sadler, 

 Prof. R. T. Hewlett, 188 



Dam, Distribution of Shearing Stresses on Horizontal 

 Layers of a, Prof. E. G. Coker, 198 



Date. Slow Artificial Ripening of the Deglet-nour, W. T. 

 Swingle, 127 



Dead Sea and .Jordan Valley, Geology and Natural History 

 of. Prof. Max Blanckenhorn, 165 



Deaths: Arrol fSir William^ 705; Bailey (Colonel F., 

 R.E.), 577; Beale CCharles Gabriel), 29; Boisbaudran 

 (Lecoq de), {]. H. Gardiner), ic.e,; Bort (L^on Philippe 

 Teisserenc de), (Dr. W. N. Shaw, F.R.S.), 510; Boss 

 (Prof. Lewis), 226 ; Bottomley (William), 226 ■ Bourseul 

 (Charles), 365 ; Brown (Robert), 227 ; Buckhout (Dr. 

 W. A.), 440; Cailletet (Louis Paul), 521, i;47 ; Carter 

 (Dr. W.). 624: Chalmers (J. A.), 88:'Claudet (A. C), 

 i;76 : Collett (Prof. Robert), 5:97, 625 : Crawford fjames 

 Ludovic Lindsay, 26th Earl of), 624, 6.52 ; Daniells 

 (Dr. Wm. Willard), 284; Darwin (Sir George Howard, 

 K.C.B., F.R.S.). 413; Dickinson (Dr. W.' H.), i;48 ; 

 Dunkerley (Dr. Stanley), 56, 88 ; Ferguson (Dr. R. M.), 

 522 ; Fletcher (Dr. Robert), 390 ; Foster, see Ilkeston ; 

 Gomperz (Prof. T.), 27 ; Gordan (Paul), 597 ; Grosvenor 

 (George Herbert), i6q ; Groves (Henrv),' 2S4 : Ilkeston 

 (Sir B. Walter Foster, the Right Hon. Lord), ^55 : 

 Johansen (Captain F. H.), .522 ; Kirby (William 



Forsell), 364 ; Koenig (Dr. G. A.), 598 ; Kriimmel 

 (Prof. Otto), 227; Laval (Dr. G. de), 624, 655; Leigh- 

 Smith, 544; Loeb (Dr. Morris), 227; Loomis (E. J.), 

 439 ; Low (F. H.), 195 ; McHardy (Prof. M. M.), 6s5 ; 

 Mallet (Prof. J. W., F.R.S.), 312; Matthey (George, 

 F.R.S.), 679; Mosenthal (Henry de), 468; Pagnoul 

 (.Mm^), 312; Parker (James), 228; Rainer (Archduke, 

 of Austria), 598; Redfern (Dr. P.), 491; Saunder 

 (S. A.), 4i5;'Segond (Prof. Paul), 257; Skeat (Prof. 

 W. W.), i6q; Smith (B. Leigh), 521; Smith (Edwin), 

 439; Swift (Lewis), 522; Svkes (Dr. J. F. J.), 625; 

 Tegetmeier (W. B.), 33S ; Teller (Dr. F.), ^-jb ; Torrey 

 (Bradford), 227; Traquair (Dr. Ramsay H., F.R.S.), 

 363; Tyer (Edward), 491; Ward (Rowland), 491, 576; 

 Whitehead (Sir Charles), 390; Williams (Dr. C. 

 Theodore, M.V.O.), 430; Williams (Dr. O. T.), 577; 

 Winter (Prof. Thomas), 27, 40; Witkowski (Prof. 

 Augustus), 598 

 Densimeter, Manley's Differential, N. P. Campbell, 717 

 Derffling Tumulus, Armin MoUer, 622 



Deutsche Anthropologische Gesellschaft : Weimar Fest- 

 schrift, 622 

 Development Commission, Mr. Runciman, 416; Commis- 

 sioners' Report, 472 ; British Forestry, D. E. Hutchins, 

 486; Development Grant, 713 

 Development, Dr. A. Greil, L. Doncaster, 458 

 Diatom Valve Photographs, T. F. Smith, 258 

 Dictionaries : Internaciona Biologial Lexiko en Ido, &c., 

 Dr. M. Boubier, 485 ; Dizionario di Merceologia e 

 Chimica .^pplicata. Prof. V. Villavecchia, 699 

 Diffraction of Short Electromagnetic Waves by a Crystal, 



Prof. W. L. Bragg, 402, 410 

 Diffusion Figures, Dr. Hall-Edwards, 112 

 Diptera (Clare Island), P. H. Grimshaw, 403 

 Disease : Infection and its Control : Huxley Lecture, Prof. 

 S. Flexner, 289 ; Medical Research and Public Health, 

 394 ; Pellagra, 467 

 Diseases of Animals : Diseases of Apes and Monkeys in 

 Confinement, W. R. Blair, c,8 ; Aspergillosis in the 

 Ostrich, J. Walker, 403 ; Diseases of Stock and their 

 Suppression in S. Africa : Address, Dr. A. Theiler, 

 C.M.G., 475; Foot-and-mouth Disease, Prof. Bang, 523 

 Diseases of Plants : Disease of Maize in Cochin China, 

 M. Foex and P. Berthault, 127 ; Fungoid Diseases of 

 Agricultural Plants, Prof. Jakob Eriksson, Anna 

 Molander, 131 ; Crown Gall, E. F. Smith and Misses 

 Brown and McCulloch, 31J ; British Plant-galls, E. W. 

 Swanton, 488; Infectious Chlorosis of the Citrus, 613 

 Dispersion Apparatus, Self-testing of. Dr. C. V. Burton, 



435 

 Dorset Field Club " Cecil " Prize, 390 

 Double Refraction produced by Distortion of Elastic Bodies 



by Volterra's Theory, Prof. O. M. Corbino, 541 

 Dragon-flies from Borneo, F. F. Laidlaw, 376 

 Drainage, Main, of Towns, F. Noel Taylor, 133 

 Drops, Liquid Measurement by, R. Donald, 612 

 Drying Oils, New Era, Dr. R. S. Morrell, 494 

 Ductless Glands, Prof. S. Vincent, 569 

 Durham University Philosophical Society, 315 

 Dusts, Incombustible : Experiments on Abel's Theory 



Prof. H. B. Dixon and H. M. Lowe, 663 

 Dynamics of Mechanical Flight, Sir G. Greenhill, Prof 

 G. H. Bryan, K.R.S., 535 



Earth, the: is the Earth Shrinking? H. Birrell, F. J. M. 

 Stratton, 251; C. E. Stromeyer. 335; Earth Features 

 and their Meaning, Prof. W.' H. Hobbs, 278 ; Age of 

 the Earth and suggested Radio-activity of Sodium, 

 Dr. F. C. Brown, 419; Formation of the Earth and 

 its Atmosphere : Address, Prof. G. Linck, 442 ; Ice 

 Ages, 445; Ice Ages and Pole Shift, Dr. R. Spit'alen, 

 657 



Earthquakes : Determination of the Epicentre of an Earth- 

 quake, Prince B. Galitzin. G. W. Walker, 3 ; Record 

 at Eskdalemuir on September 13, 88; Philippine Earth- 

 quakes, Rev. M. Saderra Maso, 139 ; Turkish Earth- 

 quake of September 13. G. W. Walker, 163; Origin of 

 the Jamaica Earthquake of January 14, 1907. Dr. V. 

 Cornish, 197 ; Graphical Construction for Epicentre, 

 G. W. Walker, 300 ; Earthquake Prediction. Prof! 

 H. F. Reid, Dr. C. Davison, 340 ; Earthquake at 



