Nature, 

 April 14, 2931 



J 



Index 



XV 



" Magnitudes," 438; Testinif Einstein's Shift of 

 Spectral 'Lines, 280; The British Asscx:iation, 107; 

 The Energy ol Cyclones, 407 ; The Geometrisation of 

 Physics, and its Supposed Basis on the Michelson- 

 Morley Experiment, 795 ; The Velocity of Light, 358 

 "•eb (J-), The Influence of Ions on the Osmotic Pressure 



of Solutions, 587 

 Loeb (L. B.), The Nature of the Heat Production in a 



System of Platinum Black, Alcohol, and Air, 167 

 Long (Prof. J.), The Small Farm and its Management. 



Second edition, 659 

 Longo (B.), The " Flowerless Apple " (P^yrus apetala, 



Monch), 714 

 Loomis (F. B.), The Oreodontida from Upper Eocene to 



Pliocene Genera, 672 

 Loomis (F. W.), Absorption Spectrum of Hydrogen 



Chloride, 179 

 Lorentz (Prof. H. A.), The Michelson-Morley Experiment 



and the Dimensions of Moving Bodies, 793 

 Lorrain (R. A.), Lakherland, the Home of the Head- 

 hunters, 359 

 Loth (W. A.), A New Method of N.ivigation, 330 

 Louis (Prof. H.), Imperial Mineral Resources, 528 

 I^vat (Lord), Recent Progress in British Forestry, 704 

 Loveday (J.), and S. II. Monro, Output in the Boot and 



Shoe Industry, 703 

 Lowe (H. J.), The Needles of Kent's Cavern with reference 

 to Needle Origin, 56; Variations of Eucalyptus Foliage, 

 "4 

 Lucas (W. J.), A Monograph of the British Orthoptera, 211 

 LudendorfT (H.), Connection of Planetary Nebulae with 

 Helium Stars, 254 ; Secular Change in the Period of 

 J Ccphei, 816 

 I Lugeon (.Vf.), and N. Oulianofi, The Geology of the Crofat- 

 de-Fer Massif, 266 

 Lull (Dr. R. $.), New Tertiary Artiodactyls from Nebraska, 



.89 

 Lumiire (A.), The Awakening of the Soil, 426: The 

 Harmful Action of Dead Leaves on Germination, 818: 

 and J. Chevrotier. A Simple and Inoffensive Method 

 of Avoiding Anaphylactic Shock, 363 ; and H. Coutu- 

 rier, The Nature of the Anaphylactic Stock, 851 ; The 

 Shock Produced by the Introduction of Insoluble Sub- 

 stances into the Circulation, 586 ; and F. Pcrrin, A 

 New Class of Hypnotics : Ttie Dialkylhomophth'ali- 

 mides, 299 

 Lumsden (T. A.), appointed an Assistant Lecturer in 



Mathematics in Birmingham University, 298 

 T.vall (Sir Charles) [obituary], 54 



Macallum (Prof. A. B.). appointed Professor of Bio- 

 chemistry at .McGill University. 199 

 Macassey (Sir Lynden). Present-day Industrial Psycholoq-y, 



815 

 Macbeth (Dr. A. K.), Organic Chemistry for Medical, Inter- 

 mediate Science, and Pharmaceutical Students, 241 

 .MacBride (Prof. E. W.), Heredity and Acquired Characters, 



501, 630; Recapitulation and Descent, 280 

 MacDonald (A.), The Anthropology of Modern Civilised 



Man, 3S4 

 MacDonald (Sir Murdoch), Nile Control, 557 

 Marpouf,',ill (Dr. R. S.), apiwinted Render in Entomology 



in Edinburgh University, 298 

 M.i< l)ow.lI. Effects of Alcohol on White RaU ; Children 



and Alcohol, 133 ; Extra Bristles in Drosophila, 13a 

 Macewen (Sir William), fleeted President of the 1923 



Congress of the Intern.ilional Society of Surgery, 87 

 MacGregor-Morris (Prof. J. T), Portable Direct-reading 



Anemometer for the Measurement of Ventilation in 



Coal-mines, 423 

 MacKay (A. H.), The Alkaloids of SrntHojacobaea, noj 

 Mackenzie (Dr. W). Achie^-ements of the "rerrier Loia 188 

 Mackic (T. J.), A Study of the Racillu.t coU Group, with 



Special Rrferenre to the Serological Characters of these 



Organisms, 523 

 Macl.^an (Prof H.), appointed Director of the Clinical 



Medical Unit at St. Thomas's Hospital. 424 

 Maclray (Sir William), Centeoarv of thr Birth of, 67 

 Macf^od {Prof. J. J. R.), and others, Phvslology and Bio 



rhemisfrr in Modern Medicine* Third -Hlilion, 602 



MacRitchie (D.), Greenland in Europe. 647 7eo 

 Madge (H. A.), appointed a C.B.E., 4,5^'' ^" 

 Madgwick (T. G.), appointed Assistant Professor in Petro- 



leutn Technology in Birmingham University 208 

 Mahmudabad (Raja of), Speech at Inauguration of the 



Muslim University of Aligarh, 680 

 Mahood (Dr. A. E.), Edited by Dr. E. I. Spriggs. Banff 



and District, 561 

 Maiden (J H ). A Box-tree from N.S.W. and Queensland, 

 395 ; A Critical Revision of the Genus Eucalyptus. 

 Vol. li., pts. 8-10: vol. iii., pts. 18; vol. iv., pts. 

 '. 3, S'o, 45 ; A New Angophora, 586 ; Notes on Two 

 Acacias, 683 ; The Botany of Lord Howe Island (sixth 

 paper), 715 ; Three New Species of Eucalyptus, 36, 586 

 Maiihe (A.), The Catalytic Preparation of Secondary 



Amines, etc., 851 

 Mair-Rumley (J. G. V.) [obituary], 605 

 .Malcolm (Capt. L. W. G.), Culture and Environment in 

 the Cameroons, 677; Tasmanian Half-castes on Cape 

 Barren Island, 354; The Anthropogeography of the 

 Cameroons, 516 

 Mallemann (R. de). The Rotatory Power of Tartaric and 

 Malic Acids in Solution, 490; The Variation of the 

 Rotatory Power of Tartaric Acid, 778 

 Mallik (Dr. D. N.), The Planet Mars, 743 

 .Vlallock (A.), Propagation of a Finite Number of Waves, 

 567; Relativity, 46; Tidal Power, 629: Uses for Air- 

 craft, 147 

 Mally (C. W.), Some Zoological Factors in the Economic 



Development of South Africa, 388 

 Maltwood ^T.), [obituary], 669 



Mann (Miss A.), Behaviour of the Endodermis in the 

 Secondarily Thickened Root of Dracaena fruHcosa, 

 Koch, 554 

 Marchal (P.), The Utilisation of Ladybirds against Insects 



Harmful to Cultivation in the South of France, 778 

 Marett (Dr. R. R.), Psychology and Folk-lore, 207; Ronald 



Poulton, 369 

 Margoulis (W.), A New Method of Testing Aerodynamic 



Models in Gas Currents. 521 

 Margules (Dr. M.) [death], 219; [obituary article], 286 

 Marie (A.), and L. MacAuliffe, The Influence of Life in 



Paris on the Race, 199 

 Marion (.\L), The Action of Hydrogen Peroxide on Flour, 



394 

 Marshall (A.), Dictionary of Explosives, 660 

 Martin (Dr. C. J.), Prof. W. A. Osborne's Biography of 



William Sutherland. 826 

 Martin (Dr. G.), Animal and Vegetable Oils, Fats, and 

 Waxes : Their Manufacture, Refining, and Analysis, 

 including the Manufacture of Candles, Margarine, and 

 Butter, 43 

 Martin (L C). The Physical Meaning of Spherical Aberra- 

 tion, 469, 567 

 .Martindale and Westcott, The Extra Pharmacopoeia of, 

 Revised by Dr. W. H. Martindale and Dr. W. W. 

 Westcott. Seventeenth edition, vol. i., 276 

 Martinelli (Dr. G.), Catalogue of Earthquakes felt in Italy 



in 1917, 28 

 Marvin (F. S.), The Century of Hope : A Sketch of Western 

 Progress from 1815 to the Great War. Second edition, 

 »75 

 Maskell (E. J.), appointed Frank Smart University Student 

 in Botany in Cambridge University, 34 ; awarded a 

 Graduate Research Studentship in Plant Physiology at 

 Emmanuel College, Cambridge, 34 

 Mason, (F.), A New Maximum Current Density In Com- 

 mercial Silver-plating, 521 

 Massart (Dr. J.), Observations of the Ilex, 417; The 

 Movement of Different Species of Littoral Flagellates, 

 290 

 Massey (Anne L.), and others, British Museum (Natural 

 History). British Antarctic (Terra Sova) Expedition, 

 1910. Natural History Report. Zoology. Vol. xi.. 

 No. 9, etc., 398 

 Mather (ftight Hon. Sir William^ [obituary article], 118 

 Mathews (Prof. G. B.), Non-Euclidean Geometries, 790 

 Malhias (E.), C. A. Crommelin, and H. K. Onnes, The 

 Rectilinear Diameter of Hydrogen, 850 



