Nature i 

 April 15, 1920 



^ 



Index 



Vll 



Crabtree (J. H.),' British Ferns and liow to Identify 



Them, 410 

 Cramp (Dr. W.), appointed Professor of Electrical En- 

 gineering in Birmingham University, 48q 

 Crawford (H. S.), The Mural Paintings and Inscriptions 



at Knoclimov Abbey, 475 

 Crawford (Prof.j, and 'Misses Fairfield and Cummings, 



The Orbit of Finlav's Comet iQigd, 380 

 Crawfurd {Mr. R.), to Deliver the Harveian Oration, 135 

 Cremieu (V.), and A. Eepape, The Separation by Solidi- 

 fication of Pure Carbon Dioxide from a Gaseous Mix- 

 ture, 307 

 Crestani fProf. G.), Meteorologia Aeronautica, 656 

 Crommelin (Dr. A. C. D.), Results of the Total Solar 

 Eclipse of Mav 29 and the Relativitv Theory, 280 ; 

 Einstein's Theory, 514; The Belgian Royal Observa- 

 tory, 676; The ' Deflection of Light during a Solar 

 Eclipse, 372 ; The Einstein Theory and Spectral Dis- 

 placement, 532: The Theorv of Relativity, 631 

 Crooke (Dr. W'.), Cults of the Mother Goddesses in India, 



608 



Crossland (Dr. C), Comfort and Health in the Tropics, 573 



Crossley (Prof. .'\. W.), appointed ' Director of Research 



to the British Cotton Industry Research Association, 



296; The .Appointment of, as Director of Research 



by the British Cotton Industry Research Association, 



319 



Crowlev (Dr. J. F.)„ The Use of Electricity in Agriculture, 



268 

 Crowther (Dr. J. A.), A Manual of Physics, 658 

 Crozier (Col. C. D.), The Manufacture of High Explosives 



during the War, 4.i;s 

 Cruickshank (Dr. J.j, appointed Georgina McRobert 



Lecturer in Pathology in .Aberdeen University, 385 

 Cummings (B. F.), [obituary], 177: Enjoying Life: and 



other Literary Remains of W. N. P. Barbellion, 529 

 Cunningham (Dr. Brysson), Hydro-electric Development 

 Works. 161 ; Irrigation in Egypt and the Sudan, 67 : 

 The Chippawa-Queenston Hydro-electric Development 

 Scheme, 483 : The Hydro-electric Survey of India, 

 363; The Reduction of Wave Action in Harbours, 614 ; 

 The Sudan Irrigation Works, 120; Water in Action — 

 Controlled and Free. 70 

 Cunningham (E.), Einstein's Relativity Theory of Gravita- 

 tion. 354, 374, 394; Einstein's Theory and a Map 

 Analogue, 437 : The Theorv of Relativity, 632 

 Curtis (R.), The " Grillo " Plant for making Sulphuric 



Acid, 341 

 Cutler (D. W.l, The Spermatogenesis of Infertile Hybrids 



between Pheasant and Gold Camoine Fowl. Si 

 Czaplicka (Miss M. A.), Relation of History and Ethnology, 

 with special reference to North Central Asia, 487 ; 

 The Turks of Central Asia in History and at the 

 Present Day, 273 



Dakin (Prof.), Vitalism, .578 



Dale (Dr. H. H.). and others. The J?<51<.' of Capillaries 



in the Regulation of the Blood-flow, ,:;!9 

 Dall (Dr. W. H.). New Species of Molluscs of the Family 



Turritidac from the West Coast of .America and Adjacent 



Regions, q8 

 Dallas (W. L!), [obituarvl. 63 

 Daly (Prof. R. A.), "Glacial-control" Theory of the 



Growth of Coral Reefs. 360 

 Danden (Lieut. M. M.), Dizionario Internnzionale di .Aero- 



nayigazione e Costruzioni .Aeronautiche. Italiano, 



Francese, Inglese, Tedesco, 656 

 Daniel (L.),, The Causes of the Immersion of the Leaves 



of the Water-Lily, 407 

 Daniell (G. F.), Selection of Elementary Children for 



Higher Forms of Education, 513 

 Darling (C. R.), to deliver a course of Lectures' on the 



Commerical Applications of Physics, 386 

 Darrow (F. L.), The Boys' Own Book of Great Inventions, 



Dautriche (P.), The Field of Application for Aerophoto- 



graphy, 09 

 Davenoort (Dr. C. B.), and M. T. Scudder, Naval Officers : 



Their Heredity ,ind Development, 306 

 Davidson (C. R.), The Solar Eclipse of May 29, 1919, 544 



Davies (T. J. C. Fraser), The Sociological Society, 662 

 Davis (Dr. A. P.), and H. M. Wilson, Irrigation Engineer- 

 ing. Seventh edition, 70 

 Davis (J. J.), The Natural Enemies of Phyllophaga, 40 

 Davis and Jordan, The Orifice as a Means of Measuring 



the Flow of Water through a Pipe, 647 

 Dobenham ^F.), elected a Fellow of Gonville and Caius 



College, Cambridge, 616 

 Deecke (Prof. W.), Articles on Petrographic Subjects, 673 

 Deeley (R. M.), and others, Lubrication, 451 

 Delage (Y.), Integrating Pitot Tube for measuring the 



average V^elocity of Variable Currents, 683 

 Delaporte (P.), Proposed Reform of the Calendar, 41,^ 

 Deller (Dr. E.), appointed Assistant Secretary to the Royal 



Society, 572 

 Dellinger (J. H.), Radio-Transmission and Reception, 543 

 Delpech (J.I. Flameless Powders, 167 ; The Flashes Pro- 

 duced by the Fire of Artillery, 187 ; The Pure " B " 

 Powders, 68 

 Demenitroux (M.), Methods Used in France for the Pro- 

 duction of Radium Bromide. 419 

 Dendy (Prof. A.), Animal Life and Human Progress, 21 

 Denham (H. J.), Gossypium in Pre-Linnsan Literature, 10 

 Densmore (F.), Teton Sioux Music, 437; The Sun Dance 



of the Teton Sioux, 437 

 Desch (Prof. C. H.), appointed Professor of Metallurgy in 

 Sheffield University, 405 ; The Metallurgical Position 

 in this Countrv and the Central Empires, 45s 

 Descombes (P.l, the Use of Trees in Extracting Water 



from the Atmosphere, 491 

 Deslandres (Dr. H.), Sir Norman Lockyer, igi ; The Con- 

 stitution of the Atom and the Properties of Band 

 Spectra, 271, 347 

 Dewar (W.), Proposals for a Plumage Bill, 564 

 Dewsnup (Prof. E. R.), appointed Professor of Railway 



.Administration in Liverpool University, 38,1; 

 Dhar (N. R.), and G. Urbain, The Polarisation Electro- 

 motive Forces of Iron in Solutions of Complex Salts, 

 618 

 Dickson (A. A. C), The Mica Miner's and Prospector 3 



Guide, 276 

 Dickson (Prof. L. E.l, Historv of the Theory of Numbers. 



Vol. I., Divisibility and Primality, 4 

 Dines (W. H.), Atmospheric and Terrestrial Radiation,^ 714 : 

 Progress of Meteorology, 247 ; The Characteristics of 

 the Free Atmosphere, 505 ; The Deflection of Light 

 during a .Solar Eclipse, 393 ; Wind and Barometric 

 Gradient, 52^ 

 Dixev (Dr. F. A.), Presidential Address to the Zoology 



Section of the British .Association, 39. 121 

 Dixon (Prof. H. B.), and H. Stephen, The Discovery of 



Chemical Elements since 1869, 221 



Dixon (Prof. H. H.). and T. G. Mason, A Crvoscopic 



Method for the Estimation of Sucrose, s^.S ; and H. H. 



Poole, Photo-svnthesis and the Electronic Theory, 682 



Dixon (R. B.), and A. L. Kroeber, Regrouping the Dialects 



of California, !;4i 

 Dobbin (Dr. L.), Formic Acid and the Stinging Hairs of the 



Common Nettle, 64 

 Dobell (Prof. C), The Amoebae Living in Man, 360 

 Dobson fG. M. B.), Winds and Temperature-gradients in 



the Stratosphere, 4^8 

 Domville-Fife (C). Submarines and Sea Power, 433 

 Doncaster (Prof. L.). Mendelism, 6.S1; 

 Donnan fProf. F. G.), Heat of Reaction and Gravitational 



Field, 392 

 Doodson ^A. T.). R. M, Carey, and R. Baldwin, Theo- 

 retical Determination of the Longitudinal Seiches of 

 Lake Geneva, 714 

 Douglas (Capt. C. K. M.). The Formation of Haloes. 641 

 Douflas (J. A.l. Geolog'cal Sections through the .Andes of 



Peru and Bolivia, IL, 681 

 Douvillc^ (H.). The .Annular Foraminifcra; (Cyclostjgnes) 



of Orbigny, i;23 

 Dowbng- (J. J.V An -Apoaratus for the Production of High 



Electrostatic Potentials, 428 

 Downinf (E. R.), .A Source Book of Biological Nature 



Study, 46? 

 Doxfo'-d (A. E.), The Economic Position of the Country, 

 268 



