Nature, "1 

 April u, 1921 J 



INDEX. 



NAME INDEX. 



Abel (Prof. O.). Die Sianimc der Wirbelliere, 274 



Abctti (Dr. G.), The Densities of Binary Stars, 418; The 



Multiple System ( Ursae .Majoris, 356 

 Abiiey (Sir William), [obituary article], ^yb 

 Abraham (H.), E. Bloch, and L. Bloch, A Direct-reading 



Thermionic Voltmeter, 321 

 .Abrahams (R. G.), appointed Honorary Assistant Curator 



of the Pathological .Museum, Section of Surgery, in 



Birmingham University, 487 

 Adams (I.. H.), and E. D. Williamson, The Annealing of 



Glass, 704 

 Adgie (R. F.). The Conduct of the Mining Industry, 96 

 .\dinolfi (E.), Centres of Absorption of Coloured Solutions, 



522 ; Influence of Dissociation on Permanganate, 522 

 .Adrian (Dr. E. D.), Prof. Sherrington's Work on the 



Nervous System. 442 

 Agamennonc (Dr.). Earthquakes at Frascati, 28 

 .Aitchison (Dr. 1..), Electroplating for the Prevention of 



Corrosion, 520 

 Aitken (the late Dr. J.), Thermometer Screens, 850 

 Aitken (R. D.), The Water Relations of the Pine (Pinus 



liinasler) and Silvertree {Leucadendron argentcum), 



S'3 

 Alden (W. C), The Quaternary Geology of South-eastern 



Wisconsin, 89 

 Aldrich (J. M.), the European Frit Fly in North America, 



773 



Alexander (C. P.), and W. L. McAtie, The Crane-flies and 

 Tipuloidea from the District of Columbia, 770 



Aliverti (G.), State of Contraction of Electrolytic Metal 

 Deposits, I., 491 



Allbuft (Sir T. Clifford), Sir Norman Lockyer, 25 



Allcock (H.), A Proposal to Increase the Purchasing Power 

 of the Penny, 384 ; The Metric System and Inter- 

 national Trade, 169 



.Allen (E. Heron-), and .A. Earland, Protoplasm and Pseudo- 

 podia, 486 



Allen (Dr. H. S.), Mthrr and the Quantum Theory, 490 ; 

 Luminosity by .Attrition, 376 ; The Mechanics of Soli- 

 dity, 599 



Allen (N.A.), The Current Density in the Cratrr of the 

 Carbon Arc, 577 



Amodeo (F.>. Researches of a Neapolitan Eighteenth- 

 century Mathematician on certain Theories of Arrhi 

 medcs, 426 



Anderson (J. \.). Observations of Capella, 322 



Andrewps (Sir Frederick), Birth and Growth of Science in 

 Medirine, fill 



Andrews (C), British Laboratory and Scientific GIas«w»re, 

 440 ; Catalogue of X-ray Tubes, 481 



Andrews (R. C), The Fossils of Eastern Asia, 70^ 



Andrews (W. A.), appointed Lecturer on Applied Chemistry 

 at th* Merchant Venturers' Technical College, Bristol. 

 679 



Angell (Dr. L R-V The Organisation of Research. 55 



Annand.ile (Dr. N.). Observ.ilions on " Physa Prinsepii," 

 Sowerby, 158: Report on the Zoological Survey of 

 India for 1917-20, 738; The British Association, 373 



Anthony (R.), and J. Liouville, Characters of Adaptation 

 of the Kidney of Ross's Seal to the Conditions of 

 Aquatic Life, 67 



Appleton (A. B.). appointed a Demonstrator in Anatomy in 

 Cambridge University, 451; 



.Appleton (E. V.), A Method of Demonstrating the Retro- 

 active Property of a Triodc Oscillator, 848 ; A Method 

 of Testing Triode Vacuum Tubes, 520 



Arber (Dr. Agnes), The Leaf-tips of certain Monocotyle- 

 dons, 849 ; Water Plants : A Study of Aquatic Angio- 

 spcrms, 462 



.Armellini (G.), Latitude of the Capitoline Observatory, II., 

 619 ; Observations on Secular Comets, 619 ; The Gravi- 

 tational Potential of the Galaxy, 223 



Armsby (H. P.), J. A. Fries, and W. W. Braman, The 

 Carbon Dioxide : Heat Ratio in Cattle, 588 



.Armstrong (.A. L.), Bone Implements found at Bradfield, 

 near Shcflield, 27 



.Armstrong (ProL H. E.), Detective Work in the Potbank, 

 771 ; Pre-Kensington History of the Royal College of 

 Science and the University Problem in London, 129 ; 

 The British .Association, 109, 467 



Arnold (J. IL), Farm Management, 659 



Arthur (Capt. J. S.), Sterilisaljon of Water by Chlorine 

 Gas, 451 



.Artini (E.), Cassiteritc and Titanite of Baveno, 522 



Arup (P. S.), Industrial Organic Analysis : For the Vtt 

 of Technical and Analytical Chemists and Students. 

 Second edition, 75 



Ashby (E.), The Bracebridgc Wilson Collection of Vic- 

 torian Chitons, with a Description of a New Species 

 from New Zealand, 851 



Ashby (Dr. T.), The Water-supply of Ancient Rome, 390 ; 

 and R. Gardner, The Roman Roads of Central and 

 Southern Italy, 517 



Ashford (Dr. C. E.), Electricity and Magnetism : Theoreti- 

 cal and Practjcal. Third edition, 564 



.Ashton (W.), The Evolution of a Coast-line : Barrow to 

 Aberystwyth and the Isle of Man, with Notes on Lost 

 Towns, Submarine Discoveries, etc., 499 



Ashworth (Prof. J. H.), Zoology at the British Association, 



48s 



Aston (Dr. F. W.), awarded the Mackenzie Davidson Medal 

 of the Rontgen Society, 447 ; Isotopes, 357, 358 ; The 

 Atomic Weights of the Elements, 291 ; Tile Constitution 

 of the Elements, 468; The Deterioration of Fabric 

 under the .Action of Light, and its Physical Explana- 

 tion, 849; The Separation of the Element Chlorine 

 into Normal Chlorine and Mela-chlorine, and the Posi- 

 tive Electron, 375 ; and G. P. Thomson, The Consti- 

 tution of Lithium, 827 



Astro (G.), The Biology of the Molluscs in the French 

 Coast Dunes and its Relations with Botanical 

 Geography, 330 



Athoistan (Lord), Gift to McGlll University, 392 



Atkins (Dr. W. R. G.), appointed Mead of the Department 

 of General Physiology at the Plymouth Laboratory oJ 

 the Marine Biological Association, 736 



Atkinson (LI. B), Electrical I'rogress in the Past Fifty 

 Years, 481 



Attlee (C. R.). The Social Worker. 497 



Automatic and Electric Furnaces, Ltd., A New Electric 

 Furnace, 291 ; A Simple Form of Thermo-electric 

 Pyrometer, 123 



d' Awimhuja (M.), The Spectrum of the New Star in 

 Cygnus, 166 



