xliv 



Index 



r A'atMrc, 



LSe/>tentber 29, 1921 



Naturhistorischer Verein der preussischen Rheiniande und 



Westfalens, Publications of the, for 1913-19, 758 

 Navajo Country, The, H. E. (jregory, 406 

 Navigazione Astronomica : Nuova, Le Kette di Posizione. 



leoria — Applicazioni — Tavole, Prof. G. Pes. Seconda 



edizione, 777 

 Nebulae : Dark, Dr. A. C. D. Crommelin, 464 ; Two, with 



Unparalleled Velocities, Prof. V. M. Slipher, 55 

 Negative Carriers Produced in Pure Hydrogen and Nitrogen 



by Photoelectirons, The Nature of the, L. B. Loeb, 



223 

 Nelumbo, A New Species of, from the Eocene of Meridian, 



Mississippi, E. W. Berry, 246 

 Nematodirus, Notes on, H. G. May, 343 

 Nepenthes, The Active Digestive Agent,, in the Liquor 



Secreted in the Pitchers of, Drs. J. S. Hepburn and 



E. Q. St. John, 764 

 Nervous System, Release of Function in the, Dr. H. Head, 



350 



Neujmin's Comet, 1916a, G. Neujmm, 345 



Neuropteroid Insects of the Hot Springs Region of New 

 Zealand, The, in Relation to the Problem of Trout- 

 food, Dr. R. J. Tillyard, 791 



New : South Wales, Linnean Society of. Presidential Address, 

 J. J. Fletcher, 479; The Influenza Epidemic in, in 1919, 

 308 ; York, Chemists' Club, Sir Edward Thorpe, Prof. 

 Le Chatelier, Prof. Ciiamician, and Dr. E. Solvay elected 

 Honorary Foreign Members of the, 114; Zealand, Dis- 

 covery of an Ancient Drainage System in, 533 ; Geology 

 of the Osborne and Whatatutu Subdivisions, J. Hender- 

 son and M. Ongley, 828 ; Geology, Recent Advances in 

 our Knowledge of, Prof. W. N. Benson, 440; Some 

 Aspects of Insect Life in, Comdr. J. J. Walker, 54; 

 Species of the Genus Lycopodium, Dr. J. E. Holloway, 

 151 ; The Jurassic of, Dr. C. T. Trechmann and L. F. 

 Spath, 638 



N/Cwcomen : Society, Activities of the, 468; Thomas, a 

 Memorial to. Unveiled at Dartmouth, 722 



Newington Moraine of New England, The F. J. Katz and 

 A. Keith, 86 



Newts, Intersexes in,. Ch. Champy, 692 



Nichols Prize of the Royal Society of Medicine, The, 215 



Nickel : A Paper on, 724 ; The Constitution of. Dr. F. W. 

 Aston, 520 ; Steels, The Electrical Resistance of the, 

 A. Portcvin, 94 



Nigeria : Forest Administration of, Annual Report for 1919 

 of the, 86 ; Geological Survey of, Bulletin No. i. The 

 Geology of the Plateau Tin Fields, Dr. J. D. Falconer, 

 679 



Night Sky, Colour of the Light from the. Lord Rayleigh, 



158 



Nile Basin : Hydrography of the, 90 ; The Measurement of 

 the Discharge of the, through the Sluices of the Assuan 

 Dam, Sir Murdoch MacDonald and H. E. Hurst, 310 



Nitrocellulose Powders, The Stability of, M. Fric, 734 



Nitrogen : Critical Potentials and Band Spectra of, L. and 

 E. Bloch, 767 ; Fixation, The Influence of Uranium 

 Salts on, E. Kayser, 414 ; in/ Organic Compounds, The 

 Detection of, C. D. Zenghelis, 799 ; in Sewage, The 

 Action of Bacteria and Protozoa in Conserving the, 

 E. H. Richards, 318 



Nobel: Prize for Physics for 192 1, The, awarded to Prof. 

 E. Branly, 598 ; Prizes, Proposal to Increase the Value 

 of the, 598 



Non-ferrous Metallurgy, 677 



Norfolk and Norwich Naturalists' Society, Transactions of 

 the. Vol. xi., part i., 85 



North America, The Cretaceous-Tertiary Boundary in, 

 Prof. A. C. Seward, 282 ; Western States of. Hydro- 

 logy of the. Dr. B. Cunningham, 406 ; -east Coast 

 Institution of Eng-ineers and Shipbuilders, Sir William 

 J. Noble elected President of the, 629 ; Pole, Proposed 

 Aeroplane Flight by E. Naulty across the, 755 



Northern D'Entrecasteaux, The, D. Jenness and the late 

 Rev. A. Ballantyne, 11 1 



Northumbria, Highways and Byways in, P. A. Graham, 

 168 



Norwegian Scientific Expedition to Jan Mayen, 598 



Nototherium, The Remains of, Discovered in Tasmania, 

 H. H. Scott and C. E. Lord, 501 



Nova : Cygni III. (1920), W. F. Denning, 471 ; Geminorurr^ 

 II., the New Star of 1912, Major W. J. S. Lockyer, 

 248; The Spectrum of, F. J. M. Stratton, 248 



Novae Aquilae III., Photographs of the Spectra of, C. F. 

 Butterworth, 182 



Nummulospermum, gen. nov.. The Probable Mega- 

 sporangium of Glossopteris, Dr. A. B. Walkom, 445 



Nutrition, Protein in. Quality of. Dr. R. H. A. Plimmer, 

 664 



Obstetrics : Normal and Operative, Prof. G. P. Shears. 

 Third edition, revised by Dr. P. F. Williams, 484 



Ocean : Currents, The Dissipation of Energy in Permanent^ 

 with some Relations between Salinities, Temperatures,, 

 and Currents, R. O. Street, 158; Tides, Prof. J. Proud- 

 man, 176; A. C. Tennant, 299; Prof. J. Proudman, 

 300; H. A. Marmer, 393; Dr. VV. Bell Dawson, 651 



Oceanographic : Problems, 33 ; Research, Prof. W. A. 

 Herdman, 172 ; in the British Empire, Dr. N. Annan- 

 dale and Major R. B. S. Sewell, 139 ; in the U.S.A.^ 

 632 



Ochreous Flint Artefacts from Sheringham, J. Reid Moir^ 

 684 



Oersted : H. C, Scientific Life and Works of, K. Meyer ,^ 

 493 ; the Discoverer of Electro-magnetism, 492 



Oil: from Grape Pips, The, E. Andr6, 510; Fuel, The Use 

 of. 385 ; in Western Sinai, H. B. Milner, 250 ; Possi- 

 bilities in and around Baxter Basin, Rock Springs, Up- 

 lift, Wyoming, A. R. Schultz, 792 ; Waste, from Ships,. 

 Prof. T. D. A. Cockerell, 333 



Oiliness of Fatty Bodies, The, P. Woog, 799 



Oldknow, Samuel, The First Manufacturer of British 

 Muslins, Prof. G. Unwin, 477 



Old Red Sandstone Plants, Showing Structures from the 

 Rhynie Chert Bed, Aberdeenshire. Parts iv. and v.. 

 Dr. R. Kidston and Prof. W. H. Lang, 382 



Ontario, University Education in. Report of Royal Com- 

 mission on the Financial Obligations of the State 

 Towards, 188 



Optical : Instruments, Catalogue of, Adam Hilger, Ltd., 

 725 ; Rotatary Dispersion, Drs. T. M. Lowry and C. P. 

 Austin, 476 



Optophone : Amplifying the, A. A. Campbell Swinton, 8 ; 

 Dr. E. E. Fournier d'Albe ; J. W. French, 43 



Ore Deposits : of Utah, The, B. S. Butler, G. F. Loughlin, 

 V. C. Heikes, and others, 484 ; The Enrichment of, 

 W. H. Emmons, 581 



Organic : Liquids and Tissues of Some Marine Animals, 

 The Reducing Power of the, R. Bayeux, 287 ;- Systems, 

 Certain Rhythftiic Relations in, Analytical Note on, 

 A. J. Lotka, 222 



Orientation of the Dead, Celestial and Terrestrial, Prof. 

 H. J. Rose, 538 



a Orion, The Apparent Diameter of, C. Nordmann, 319 



Ornithological Problem, An, G. A. Macmillan, 746 



Ornithology, Early, Notes on, and Kindred Subjects, J. R. 

 McClymont, 167 



Osiris Prize, The, awarded to Gen. Ferris, 629 



Osier Memorial Fellowship, An, Formed in California, 380 



Osmose, Anomalous, F. E. Bartell, 94 



Otozamites in Australia, The Occurrence of, Dr. A. B. 

 Walkom, 575 



Ottokaria-like Plant from South Africa, .'\n, H. H. Thomas, 



445 

 Over-voltage Compounds, The Life-period of the, E. New- 



bery. 800 



Owl, The Great Horned, Dr. Overton, 822 



Owls, Young, Transported in Mid-air, J. H. Gurney, 245 



Oxalic Acid and Iodic Acid, The Mutual Reaction of, 

 G. Lemoine, 702 ; iii., G. Lemoine, 767 



Oxford : Early Chemistry in. Sir Edward Thorpe, 13 r 

 Early Science in. Part i.. Chemistry, R. T. Gunther, 

 13 ; The Historic Names of the Streets and Lanes of. 

 Intra Muros, H. E. Salter, 532 ; University, Work of 

 the Forestry School, qi ; Dr. W. Brown elected W'ilde 

 Reader in Mental Philosophy, .^07 ; Dr. E. Mallam 

 appointed Litchfield Lecturer in Medicine ; Approval 

 of Statute Constituting the Delegacy for the Society of 

 Oxford Home Students and to the Decree Authorising 



