Nature, 

 August 12, 1922 



Index 



Macrocystis pyrifera, Studies in, E. Marion Delf and M. 



Michell, 194 

 Madagascar, Lead in the Uranium Minerals of, M. :Muguet, 



158 

 Magnesium : in Organic Chemistry, H. Hepworth, 251 ; 

 Positive-ray Analysis of, A. J. Dempster, 159 



Magnetic : Induction, Ewing's Theory of, 321 ; Suscepti- 

 bilities at High Frequencies, The Measurement of, M. 

 H. Belz, 398 



Magnetism and Atomic Structure, II., Dr. A. E. Oxley, 290 



Magneto : -chemical Investigation of Constitution in Mineral 

 Chemistry, P. Pascal, 326 ; -optische Verschijnselen, 

 Verhandehgen van Dr. P. Zeeman over, 66 



Maidstone Museum, Donations to the, 216 



Majorana's Theory of Gravitation, A Criticism of. Prof. 

 H. N. Russell, 352 



Malacological Society of London, Election of Officers and 

 Council of the, 249 



Malaria : in the Federated Malay States : The Prevention 

 of, A Record of Twenty Years' Progress, Dr. M. 

 Watson, with Contributions by P. S. Hunter and A. 

 R. Wellington. Second edition, 334 ; The Conquest 

 of. Col. W. G. King, 647 



Malaysian Butterflies, Major J. C. Moulton, 23 



Mallard, Nestling Feathers of the. Prof. J. Cossar Ewart, 

 662 



Malta, Recent Excavations in. Miss M. A. Murray, 27 



Maltese Cross shown by Wood that has undergone Trau- 

 matisms, J. Costantin, 799 



Man : Sir G. Archdall Reid, 579 ; and his Past, O. G. S. 

 Crawford, 302 ; in India, No. 3, 558 ; in the Pacific, 

 Dr. C. Wissler, 387 



Manchester : Literary and Philosophical Society, Election 

 of Officers and Council of the, 590 ; L. E. Vlies elected 

 Chairman of the Chemical Section of the, 690 ; Uni- 

 versity, Donation from the Executors of the late H. 

 WooUey, Appointments in, 155 ; Resignation of 

 Prof. H. R. Dean of the Proctor Chair of Pathology, 

 325 ; Prof. A. Lapworth appointed Sir Samuel Hall 

 Professor of Chemistry, 429 ; Institution of a Fellow- 

 ship in Memory of the late Prof. A. S. Delepine, 460 ; 

 Impending Resignation of Prof. J. W. Smith ; Ap- 

 pointments in, 498 ; Prof. R. Robinson appointed 

 Professor of Organic Chemistry in, 664 



Manganese: Group, Monochnic Double Selenates of the, 

 Dr. A. E. H. Tutton, 461 ; Spectrum of. Series and 

 other Regularities in the, M. A. Catalan, 461 



Manurial : Phosphates, The Citric Solubility of. Dr. Tocher, 

 25 ; Substances, The Absorption and Retention of, 

 by Granite Soils, Prof. Hendrick, 25 



Manuring Grassland, Effect of Long - continued. Dr. 

 Winifred E. Brenchley, 25 



Map Projection, Elements of, C. H. Deetz and O. S. Adams, 

 88 



Marine : Borers in San Francisco Bay, 426 ; Invertebrates, 

 C. H. Edmondson and others, 530; MoUusban Fauna 

 of America, W. H. Dall, 282 ; Organisms, An Elusive 

 Group of. Sir W. A. Herdman, 130 



Mars : Conjunction of, with a Star, W. F. Denning, 186 ; 

 The Approaching Opposition of, 386 ; The Rotation 

 Period of, 791 



Mary, Princess, and Viscount Lascelles, The Marriage of, 

 279 



Mastodon, The American Indians' Knowledge of the, J. 

 L. B. Taylor, Dr. C. Wissler, 387 



Mathematical : Analysis, Prof. G. H. Hardy, 435 ; Associa- 

 tion, Annual Meeting of the. Sir T. L. Heath elected 

 President, 85 ; Pastimes, New, Major P. A. MacMahon, 

 200 ; Recreations, 200 ; Tables, Wightman's Second- 

 ary School, edited by F. Sandon, 737 



Mathematics : and Public Opinion, 520 ; Elementary, Text- 

 books of, 574 ; for Technical Students : Junior 

 Course, S. N. Forrest, 574 ; in Japan, 287 ; Pure, 

 Elementary, Dr. S. Brodetsky, 737 



Maud Arctic Expedition, The, 789 



Maxwell, The Tensions and Pressures of, in Magnets and 

 Dielectrics, G. Gouy, 362 



Maya Hieroglyphs, A. M. Tozzer, 282 



Mayen Island, Jan, A Summer Visit to, J. M. Wordie, 15 ; 

 The Flora of, J. L. C. Musters, 194 



Measure, How to, Profs. G. M. Wilson and K. J. Hoke, 472 



Measurements and Instruments, Physical, A Tournal for. 

 182 



M6canismes communs aux ph^non^mes disparates. Prof. 

 M. Petrovitch, 739 



Mechanical Engineers, Institution of. Awards of the, 351 ; 

 Work of the Research Committees of the, 351 



Mechanics and Engineering from the Time of Aristotle to 

 that of Archimedes, T. E. Lones, 214 



Medicinal Chemicals, 37 



Medicine : Comparative, Imperial Aspects of, 633 ; 

 History of, the Third International Congress of thej 

 Election of Officers of, 21 



Mediterranean Fever, A New Method of Diagnosis of, E. 

 Burnet, 259 



Megalithic Monuments of Malta, The, 27 



Melanesian Witchcraft, Dr. B. Malinowski, 827 



Melbourne University Bill, The, 329 



Meldola Medal, The, 49 ; awarded to Dr. C. K. Ingold, 

 249 



Melting Points of Pure Organic Liquids as Thermometric 

 Standards for Temperatures below 0° C, The, J. 

 Timmermans, Mile. H. Van der Horst and H. K. Onnes, 

 258 



Memories of a Long Life, Rev. Canon T. G. Bonney, 607 



Memory, Sir G. Archdall Reid, 551 



Mendel, The Centenary of the Birth of, 486 



Mental: Hygiene. A National Council for, Sir Courtauld 

 Thomson, 565 ; Inauguration of a. Sir Courtauld 

 Thomson elected President, 621 ; Measurement, The 

 Essentials of. Dr. W. Brown and Prof. G. H. Thomson, 

 472 ; Tests and Mentality, Prof. Pear, 657 



Mercury : from Different Sources, The Atomic Weight of. 

 Prof. J. N. Bronsted and Dr. G. Hevesy, 780 ; Iso- 

 topes of. Separation of. Prof. W. D. Harkins and R. 

 S. MulUken, 388 ; Pump, A New Form of High 

 Vacuum Automatic, H. P. Waran, 462 ; The Isotopes 

 of. Prof. T. H. Laby and W. Mepham, 206 ; Vapour, 

 Low Voltage Glows in, G. Stead and E. C. Stoner, 397 



Mercury, The Planet, W. F. Denning, 623 



Merlin, Breeding Habits of the, W. Rowan, 423 



Mesopotamia, River Control in, E. Howell, 215 



Messier, 33, Internal Motion with Spiral Nebula, A. Van 

 Maanen, 158 



Metallurgy, Industrial, Periodicals of Interest on, 724 



Metals : and Alloys at Low Temperatures, The Variations 

 of the Mechanical Properties of, L. Guillet and J. 

 Cournot, 258 ; Endurance Limits of, H. F. Mooxe 

 and J. B. Kommers, 219 ; Institute of. The Journal 

 of the. No. 2, 192 1, vol. xxvi. Edited by G. Shaw 

 Scott, 644 



Metchnikoff: (Mgcnikov), and Russian Science in 1883, 

 Prof. B. Brauner, 478 ; Elie, Life of, 1845-1916, Olga 

 Metchnikoff, 163 



Meteoric Fireballs, 318 ; Shower of December 4-5, 1921, 

 W. F. Denning, 121 



Meteorological : Observations, Mont Blanc, Sir Napier 

 Shaw, 190 ; Office — Air Ministry : British Rainfall, 

 1920, ro2 



M^teorologie pratique, £tudes 616mentaires de, A. 

 Baldit, 440 



Meteorology : Elementary, C. J. P. Cave, 440 ; Handbook 

 of, A Manual for Co-operative Observers and Students, 

 J. W. Redway, 440 ; in Medicine, Dr. A. G. Mac- 

 donald, 354 ; in the Netherland Indies, 594 



Meteors, The April, 1922, W. F. Denning, 560 ; The 

 Shower of January, W. F. Denning, 55 



Metres, Standard, Recent Fundamental Determinations 

 and Verifications of the, C. E. Guillaume, 62 



Metric Gallon, suggested, 117 



Mexican Archaeology, A. M. "ITozzer, 624 



Mexico, Archaeological Investigations in, Mrs. Zelia 

 Nuttall, 59 



Microphones, Doubly Resonated Hot-wire, E. T. Paris, 698 



Microscope : A New Science, C. Baker, 562 ; Beck's 

 Standard London Petrological, 58 ; Illumination and 

 Fatigue, H. J. Denham, 78 ; Objectives, 320 ; The, 

 Its Design, Construction, and Applications. A Sym- 

 posium and General Discussion by many Authorities. 

 Edited by F. S. Spiers, 370 ; The Mechanical Con- 

 struction of the, from a Historical Point of View, 

 Prof. A. Pollard, 754 



