Nature. \ 

 October 7, 1920 J 



Index 



Vii 



Berwick (W. E. H.), appointed Lecturer in Mathematics 

 in the University of Leeds, 56 ; Quintic Transforma- 

 tions and Singular Invariants, 474 



Besson (L.), The Actin9meters of Arago and Bellani, 283 



Betts (Annie D.), Daylight Saving and the Length of the 

 Working Day, 41 



Bevan (W.), The Agricultural Industries of Cyprus, 757 



Beveridge (Sir William), A Hitherto Unrecognised Periodi- 

 city in the Weather and the Crops, 370 



Bianco (O. Z.), "La Trepidazione in Dante?" 664 



Bidder (Dr. G. P.), Sponges, 441 



Bigourdan (G.), The Instruments and Work of the Sainte- 

 Genevi^ve Observatory, 475 



Birchenough (Sir Henry), appointed Chairman of the 

 British Dyes Ccxrporation, 303 ; Importance of the Dye 

 Industry, 413 



Birkett (M. S.), The Iron and Steel Trades during the 

 War, 787 



Bishop (F. C), and H. P. Wood, A Remedy against Lice 

 in Poultry, 663 



Bispham (Capt. J. W.), An Experimental Determination of 

 the Distribution of the Partial Correlation Coefficient 

 in Samples of 30, 187 



Bjerknes (Prof. V.), The Meteorology of the Temperate 

 Zone and the General Atmospheric Circulation, 523 



Blacklock and Carter, Anopheles plumbeus, 241 



Blackman (Dr. A. M.), " The House of the Morning " in 

 Egyptian Ritual, 241 



Blackman (Dr. F. F.), The Protoplasmic Factor irt Photo- 

 synthesis, 89 



Blair (Sir Robert), Presidential Address to Section L of 

 the British Association, 828 



Blaise (E. E.), The Action of Hydrazine on the 1:4 Acyclic ! 

 Diketones, 506; The Action of Substituted Hydrazines I 

 upon Acyclic i : 4-Diketones, 666 



Blake (E.), Selected Studies in Elementary Physics : A 

 Handbook for the VVireless Student and Amateur, 739 



Blake (Dr. F. G.), The Relation of the Bacillus influenzae i 

 to Influenza, 763 ! 



Blakeslee (E. B.), The Control of the Peach-borer, 629 



Blamires (Mrs. M.), Gift to the Huddersfield Technical 

 College, 185 



Blaringham (L.), The Stability and Fertility of the Hybrid 

 Geum urbanum x G. rivale, 475 



Bloch (L. and E.), Production of the Band Spectra of 

 Nitrogen by Electrons of Low Velocity, 539 ; Some 

 new Spark Spectra in the Extreme Ultra-violet, 27 



Blythe (E.), A Text-book on Machine Drawing for Elec- 

 trical Engineers, 260 



Boerker (Dr. R. H. D.), Our National Forests: A Short 

 Popular Account of the Work of the .U.S. Forest 

 Service on the National Forests, ^^77 



Boirac (E.), The Psychology of the Future (''' L'Avenir des 

 Sciences Psychiques "), Translated and Edited' with an | 

 Introduction by W. de Kerlor, 323 i 



Bond (Hon. Col. C. J.), Loss of Fragrance of Musk Plants, [ 

 709 I 



Bone (Prof. W. A.), The Position of University Teachers : 

 in relation to the Teachers (Superannuation) Act, 89 1 



Bonney (Prof. T. G.), MarllBorough R. Pryor, 333 ' 



Bonnier (Prof. G.), elected a Foreign Member of the | 

 Linncan Society, 366 ; The Changes in Plant Forms j 

 Obtained Experimentally, 539 I 



Boot (Sir Jesse), Gift to University College, Nottingham, 



• 66s 



Borchardt (W. G.), School Mechanics. Part i., School 

 Statics, 163 



Borradaile (L. A.), A Manual of Elementary Zoology. 

 Third edition, 804 ! 



Bose (Sir Jagadis Chandra), Conferment upon, of an Honorary 

 Degree by Aberdeen University, i';4; Experiments on 

 Movements in Plants, -^o? : Life Movements in Plants, 

 416; Organisation of Scientific Work, 39 ; Researches 

 on Growth of Plants, 615, 648 



Bosworth (Dr. T. O.). Geology of the Mid-Continent Oil- t 

 fields. Kansas, Oklahoma, and North Texas, 608 



Bottazzi (F.), Researches on the Posterior Salivary Gland 

 of Cephalopodes (iii.), 251 



^ougault (J.) and j. Perrier, New Researches Relating 

 to the Action of Hydrocyanic Acid on Glucose, 539 ; 



The Action of Hydrocyanic Acid on Glucose; Kiliani's 

 Reaction, 443 ; and P. Robin, The lodoamidines, 

 666 



Boulin (Ch.), and L. J. Simon, Action of Water on Di- 

 chloroethyl Sulphide, 283 ; The Preparation of Methyl 

 Chloride and Bromide starting from Dimethyl Sul- 

 phate, 218 



Bourion (F.), A Method of Physico-chemical Analysis of 

 Comrnercial Chlorobenzenes, 379 ; Kinetic Study of 

 the Chlorination of Benzene, 506 ; The Analysis of 

 Commercial Chlorobenzenes by Distillation, 347 ; The 

 Impurities of the Benzene extracted from Commercial 

 Chlorobenzenes, 443 



Bourquelot (Em.), and M. Bridel, A New Glucoside capable 

 of Hydrolysis by Emulsin, Scabiosine, 187; Detection 

 and Characterisation of Glucose in Plants by a New 

 Biochemical Method, 218; The Biochemical Prepara- 

 tion of Cane-sugar starting with Gentianose, 666 ; and 

 H. H6rissey, The Presence in the Melilot and Woodruff 

 of Glucosides furnishing Coumarin under the Hydrolys- 

 ing Action of Emulsin, 634 



Boutroux (Prof. P.), Les Principes de I'Analysg Math6- 

 matique : Expos^ Historique et Critique. Tome ii., 

 256 



Bower (Prof. F. O.), The Earliest Known Land Flora, 

 681, 712 



Bowie (W.), Report on the Connection of the Arcs of 

 Primary Triangulation along the Ninety-eighth Meri- 

 dian in the United States and in Mexico, and on 

 Triangulation in Southern Texas, 141 



Bowlby (Sir Anthony A.), elected President of the Royal 

 College of Surgeons of England, 622 



Boys (Prof. C. V.), A, Noon Reflector, 117 



Braak (Dr. C), Atmospheric Variations of Short and 

 Long Duration in the Malay Archipelago and Neigh- 

 bouring Regions, and the Possibility to Forecast 

 Them, 729 



Brabrook (Sir Edward'), Anthropology and Economics dur- 

 ing the Past Quarter of a Century, 530 ; Sir Norman 

 Lockyer, 784 



Bradford (S. C), An Electronic Theory of Isomerism, 171 ; 

 Langmuir's Theory of Atoms, 41, 725 



Bradley (Dr. O. C), elected President of the Royal (Dick) 

 Veterinary College, Edinburgh, 601 



Bragg (Sir W. H.), elected an Honorary Fellow of 

 Trinity College, Cambridge, 88; Increased Interest in 

 Scientific Studies, 281 ; to receive the Honorary De- 

 gree of D.Sc. from the University of Dublin, 89 



Bragg (Prof. W. L.), Crystal Structure, 646 



Braly (Ad.), Method for Collecting and Characterising the 

 Sublimates Produced by Metalloids and Metals Vola- 

 tilised by the Blowpipe, 219 



Brashear (Dr. J. -A.), [obituary], 273 



Brenchley (Dr. W. E.), Sugar Cultivation in India, 840 ; 

 The Improvement of Grassland, 408 



Breuil (I'Abb^), appointed Munro Lecturer for 1920-21 in 

 Edinburgh University, 121 



Bridgman (Dr. P. W.), Effects of Pressure on the Elec- 

 trical Resistance and Thermo-electric Properties of 

 Metals, 529 



Brierley (Mrs. S.), The Present Attitude of Employees to 

 Industrial Psychology, 400 



Brierley (W. B.), A Form of Botrytis cinerea with Colour- 

 less Sclerotia, 186; Ellis's Applied Botany, 164 



Briggs (G. E.), elected to the Allen Scholarship in Caim- 

 bridge University, 154 ; The Beginning of Photo- 

 synthesis in the Green Leaf, 89 



Brindley (H. H.), Further Notes on the Food-plants of the 

 Common Earwig (Porficula auricularia), 378 



Brindley (H. S. B.), [obituary], 208 



British Dyestuffs Corporation, Gift" to Oxford University 

 towards the Extension of the Organic Chemical 

 • Laboratory, 313 



Britten (J.), Banks as a Botanist, 530' 



Britton (N. L.), and C. P. Berkey, Thfe Scientific Survey 

 of Porto Rico and the Virgin Islands, 147 



Brives (A.), Some Results of a New Journey in Morocco, 



475 

 Broad (Dr. C. D.), appointed Professor of P^hilosophy in 

 Bristol University, 630 



