Index 



r Nature, 



[^September 29, 



British and Mediaeval Antiquities of the British Museum, 

 722 



Damiens (A.), The System Bromine-Tellurium, 799 ; The 

 System Iodine-Tellurium, 94 ; Tellurium Tetraiodide, 414 



Dangeard (P. A.), The Structure of the Plant-cell in its 

 Relations with the Theory of the Chondriome, 735 



Daniels (G. W.), appointed Professor of Commerce and" 

 Administration in Manchester University, 380 



Danjon (A.), and G. Rougier, Re-appearance of Saturn's 

 Ring, 119 



Darmois (E.), The Molybdomalates of Ammonium and 

 Sodium, 607 



Darton (N. H.), The Rate of Increase of Underground 

 Temperature with Increasing Depth in the United 

 States, 344 



Darwin (Dr. C. G.), appointed a Professor at the Norman 

 Bridge Laboratory of Physics at the California Insti- 

 tute of Technology, 820 



Darwin (Sir Francis), The Annular Eclipse, 212 



Datta (S.), The Spectra of the Alkaline Earth Fluorides and 

 their Relation to each other, 444 ; The Vacuum Arc 

 Spectra of Sodium and Potassium, 158 



Davidson (Dr. J.), The Cells of Plant Tissues in Relation 

 to Cell-sap as the Food of Aphids, 93 



Davidson (J. H.), British Laboratory and Scientific Glass- 

 ware, 331 



Davies (Sir Alfred T.), The Collection of Rural Lore in 

 Wales by School-children, 124 



Davies (Nina de Garis), and Dr. A. H. Gardiner, The Tomb 

 of Amenemhet, 70 ; The Tomb of Antefoker, Vizier of 

 Sesostris I, and of his Wife, Senet, 70 



Davis (H. J.), appointed Lecturer in Mathematics in the 

 Bradford Technical College, 411 



Davis (W. A.), Modern Methods of Manuring in India, 58 



Davison (Dr. C.), The Chinese Earthquake of December 16, 

 1920, 473 ; The Elements of Analytical Conies, 616 ; 

 The Elements of Plane Geometry, 134 ; The Sound of 

 Distant Gun-fire, 108 



Dawson (Sir Philip), Electric Traction in Connection with 

 Heavy Railway Work, 181 



Dawson (Dr. W. Bell), Ocean Tides, 651 



Dawson (W. H.), The Yearbook of the Universities of the 

 Empire, 1921, 519 



Debenham (F.), re-elected University Lecturer in Surveying 

 and Cartography in Cambridge University, 474 ; The 

 Future of Polar Exploration, 179 



Decarri^re (E.), The R61e of the Gaseous Impurities in the 

 Catalytic Oxidation of Ammonia, 670, 735 



D6jardin (G.), The lonisation of Argon by Slow Electrons, 

 542 



Delacre (Prof. M.), Dalton and Atomic Symbols, 440 



Delauney (P.), The Extraction of the Glucosides in some 

 Indigenous Orchids, 94 



Del^pine (M.), The Active Racemic Compounds, 382 ; 

 Fleury, and Ville, Researches on /3j8-Dichlorethyl Sul- 

 phide, 478 



De Marchi (L.), Vertical Temperature Gradient in the 

 Atmosphere, 671 



Dendy (Prof. A.), An Addition to the British Fauna 

 {Rhynchodemus Scharffi), 298; Hexactinellld Sponges, 

 413 ; The Problem of Human Evolution, 691 



Denham (H. J.), Method of Cutting Sections of Cotton 

 Hairs, 299 



Dennett (R. E.), [death], 434 ; [obituary article], 529 



Denning (W. F.), Prof. W. R. Brooks, 340 ; Large Detonat- 

 ing Fireball, 153 ; Large Meteors on March i and 2, 55 ; 

 Meteors from Pons-Winnecke's Comet, 601 ; Nova Cygni 

 III (1920), 471 ; Pons-Winnecke's Comet and its Meteor 

 Shower, 15 ; Observations of Pons-Winnecke's Comet, 

 373. 438 ; Recent Brilliant Fireballs, 182 ; Recent 

 Meteors, 634; Reid's Comet, 247; The August 

 Meteors, 694 ; The August Meteoric Displav, 793 ; The 

 Fireball of March 2, 88 ; The Meteoric Radiants of 

 June 25-30, 535 ; The Recent Meteoric Display, 825 



Denny (M. E.), Fabricated Ships, 596 



Densmore (Prof. H. D.), General Botany for Universities 

 and Colleges ; Laboratory and Field Exercises for 

 " General Botany," 69 



Dervieux (M.), Method of Individual Diagnosis of the Blood 

 and of Sperm, 543 



Dervin and Olmer, Ammoniacal Silver Carbonate, 670 



Desch (Prof. C), Necessity for Humanistic Instruction and 

 Study in the Training of Men of Science, 655 



Desgrez, Guillemard, and Hemmerdinger, The Fixation of 

 Carbon Monoxide diluted and carried by an Air-current, 

 735 ; Guillemard, and Labat, The Use of the Alkaline 

 Polysulphides for the Neutralisation of certain Toxic 

 Gases, 31 ; and R. Moog, The Influence of some Or- 

 ganic Bases and of their Chlorohydraves on the activity 

 of Pancreatic Amylase, 127 



Deslandres (Dr H. A.), awarded the Bruce Gold Medal of 

 the Astronomical Society of the Pacific, 115; elected a 

 Foreign Member of the Royal Society, 342 ; and V. 

 Burson, Researches on the Atmosphere of Stars, 93, 

 222 



De Stefani, Ligurian Fossil Sponges, iii., 128; vi., 671 



Destouches (L.), The Prolongation of 'Life in Galleria 

 mellonella, 351 



De Toni (Prof. G. B.), The Teratology of the genus Datura, 

 L., 92 



Detrie (J.), The Transformation of Phenol into cyclo- 

 Hexanol, 478 



Dewar (Sir James and Lady), presented with a Loving-cup 

 by the Royal Institution, 530 



Dible (J. H.), appointed Lecturer in Bacteriology in Man- 

 chester University, 669 



Dickson (A.), Survivals of the Regalia of the Wa-Vumba 

 tribe in the delta of the Umba River, 215 



Dickson (Dr. E. C. S.), appointed Senior Lecturer in Physics 

 in Manchester University, 669 



Di^nert (F.), Concerning Activated Sludge, 735 



Dixey (F.), The Norite of Sierra Leone, 638 



Dobbin (Dr. 'L.), appointed Reader in Chemistry in Edin- 

 burgh University, 411 



Dobson (G. M. B.), The Causes of Errors in Forecasting 

 Pressure Gradients and Upper Winds, 605 



Doidge (Miss Ethel), Revision of the Native Species of 

 Microthyriace.Te, 469 



Donald (C. H.), Companions : Feathered, Furred, and 

 Scaled, 805 



Donald (R.), Suggestion for a Corporation for an Inter- 

 Empire Scheme for Radio Communication, 660 



Dongier (R.), The Simultaneous Oscillations of Temperature 

 and Wind at the top of the Eiffel Tower and their rela- 

 tion with the Bjerknes Steering Surface of a Depression, 

 191 ; The Simultaneous Oscillations of the Pressure and 

 Wind at the top of the Eiffel Tower, etc., 510 



Dort (M.), The Variations of the Solar Radiation during tht 

 Eclipse of the Sun of April 8, 1921, 414 



Douglas (J. A.), Geological Sections through the Andes of 

 Peru and Bolivia. iii., From Callao to the River 

 Perene, 350 ; The Structure of the Andes, 436 



Dover (C), The Occurrence of Bombus in the Indian Plains, 

 362 



Dow (J. S.), The Use of Artificial Light as an Aid to 

 various Games and Sports, 470 



Dowling (J. J.), Observations of Plant-growth with the 

 Recording Ultramicrometer, 523 



Dowson (E. M.), The Programme and Policy of the Egyp)- 

 tian Government in regard to the Development of the 

 Oil Resources of the Country, 502 



Dragoiu (J.), and F. Vl^s, The Cytological Consequences of 

 the Osmotic Arrest of Cell Division, 447 



Drever (Dr. J.), Instinct in Man : A Contribution to the 

 Psychology of Education. Second edition, 455 



Dreyer (Dr. J. L. E.), Primitive Chronology, 274 ; The 

 Cosmology of Dante, 428 



Druce (Dr. G. C), Botanical Work in the Shetlands, 92 ; 

 The Extinct and Dubious Plants of Britain, 343 



Drury (Dr.), Protection against Smallpox by Vaccination, 



757 

 Drury (O. G. C), The Ingersoll Cement-gun, 596 

 Dry (F. W.), awarded the James Edmondson .^ckroyrf 



Memorial Fellowship at Leeds University, 732 

 Drysdale (Dr. C. V.), Science and Civilisation, 715 

 Drzewina (Mme. Anna), and G. Bohn, The Defence of 



Animals grouped together against Poisons, 222 

 Dubiago (M.), Discovery of a new Comet, 1921c, 373 

 Dubois (E.), The Minimum Potential of Electric Discharge 



in Hydrogen at Low Pressures, 799 



