oe 
=—=S * 
Nature, ] 
August 11, 1923 
Title Index 
xl vii 

Nederlandsch Oost-Indié, De Zeeén van, 9 
Négatif, Le, en photographie, A. Seyewetz. 
I 
Neolithic : Age, A New Industrial Material of the, L. 
Franchet, 243; Painted Pottery of South-eastern 
Europe, The, V. G. Childe, 726 
Neon Radiations, Study of some, with the View of their 
Applications to Metrology, A. Pérard, 310 
Nerves of the Fingers, Prof. J. S. B. Stopford, 718 
Nervous System, The Origin and Development of the, 
from a Physiological Viewpoint, Prof. C. M. Child, 216 
Neurotropic ultravirus, Filtration of, through Collodion 
Membranes, C. Levaditi and S. Nicolau, 452 
New: Brunswick Oil-shale and Gypsum Deposits, 374; 
. South Wales: Geological Survey of, Records of the, 
613; Linnean Society of, election of officers and 
council, Prof. J. P. Hill and Prof. J. T. Wilson elected 
honorary members of the, 716; No Volcanoes now 
in, C. A. Sussmilch, 904; Oil Exploration in, L. J. 
Jones, 303; Royal Society of, election of officers 
and council, 891; The Freshwater Entomostraca of, 
Pt. II., Copepoda, Marguerite Henry, 135; Year 
Honours, 24; Zealand: Geology of, P. G. Morgan, 
160; Sand, Hafnium and, Dr. A. Scott, 598; The 
Vegetation of, Dr. L. Cockayne, 457 
Nickel, The Magnetism of, H. Pécheux, 691 
Night Sky, Spectrum of the, Further Observations on the, 
Lord Rayleigh, 418 
Nightingale in Uganda, Dr. G. D. Hale Carpenter, 636 
Nitrogen: and Hydrogen, The Ionising Potentials of, Dr. 
H. D. Smyth, 810; Fertilisers for the Sugar Cane, 
J. Kuyper, 198; Fixation of: by Plants, E. Whitley, 
187; by the Wheat Plant, Lipman and Taylor, 95 ; 
industry in France, position of the, 543; Peroxide 
and Camphor, Two Definite Combinations of, P. 
Pascal and M. Garnier, 347 
Nocturnal Sky, Spectrum of the, J. Dufay, 762 
Nomenclature, The Rule of Priority in, F. Chapman, 148 ; 
Dr. F. A. Bather, 182 
Non-ferrous : Alloys, The Analysis of, F. Ibbotson and L. 
Aitchison. Second edition, 459; Metals Research 
Association, Bulletin of the, 267 
North: Carolina, Fruit-growing in, H. J. Cox and W. N. 
Hutt, 858; of England Institution of Mining and 
Mechanical Engineers, the Greenwell medal of the, 
awarded to Prof. R. V. Wheeler, 240 
Northmen in England, The, R. Lennard, 616 
Norway and Iceland : an Interesting Contrast, 514 
Notothixox incanus (Oliv.) var. subaureus, The Parasitism 
of, J. McLuckie, 136 
Nova Aquile 1918.4, Light and Colour Variations of, H. 
Shapley, 555 
Novaya Zemlya Island, a Wireless Station to be erected 
on, 751 
Novocaine and Curarisation, H. Laugier and R. Legendre, 
Deux. édition, 
554 
Number Form, A New Type of, Prof. T. H. Pear, 654 
Numbers, the Theory of, History of, Prof. L. E. Dickson, 
Vol. II., 11 
Nutrition de la plante : utilisation des substances ternaires, 
Prof. M. Molliard, 770 
Observer’s Handbook, The, 1921 edition, 107 
Occult Phenomena and After-images, Dr. F. W. Edridge- 
Green, 16 . 
Occultism ands Modern Science, Prof. T. Osterreich. 
Translated, 840 
Oceanographical Research, Recent, Prof. G. Matthai, 413 
Oceanography of the Southern Ocean, Comdr. F. A. 
Worsley, 302 
Odorous Strength, Factors of, T. H. Durrans; 
Perrycoste, 359. 
Oil: engines, tests on, appointment of a committee on, 
59; Exploration in N.S.W., L. J. Jones, 303; Fields 
and the Gravity Balance, 617; in Laccolithic Domes, 
A. J. Collier and S. H. Cathcart, 342; in Russia, T. 
G. Madgwick, 61; Palm under Cultivation, The, 
G. G. Auchinleck, 894; -Well: A French, P. Glan- 
geaud, 684; History of an, A. E. Chambers, 754 
BE 

Oils and Fats, Technology of, 595 
Oklahoma City, prohibition of books, etc., teaching the 
theory of the evolution of the human race, 406 
Oldebroek Explosion of October 28, 1922, the, 32 
Oldhamia Rocks of Bray Head;A Problematic Structure 
in the, L. B. Smyth, 831 
Olivine-bearing Quartz-monzonite from Kiandra, N.S.W., 
An, W. R. Browne and W. A. Greig, 311 
Opalescence, Critical, Application of Photography to the 
Study of, A. Andant, 347. 
Optical: Glass, The Refractive Index Changes in, 
occasioned by Chilling and Tempering, F. Twyman 
and F. Simeon, 830; Instruments, The Resolving 
Power and Definition of, A. Mallock, 382; Law, 
Generalised, 583 ; Methods in Control and Research 
Laboratories, Dr. J. N. Goldsmith, Dr. S. J. Lewis, 
and F. Twyman. Vol. I. Second edition, 566; 
Society, election of officers and council of the, 337 
d’Optique, Essai, sur la gradation de la lumiére, P. 
Bouguer, 320 
Ordnance Survey: the Second Geodetic Levelling of 
England and Wales, 1912-1921, 7 
Ore-dressing: A Text-book of, Prof. S. J. Truscott, 696; 
Modern Processes of, 696 
Organ-pipe Diatom, Distribution of the 
paradoxa), J. W. Williams, 116 
Organisms, Contiguity of, Effects of the, Prof. R. Pearl 
and S. L. Parker, 302 
Orionis, 6,, Variations of the Spectrum of the Star, F. 
Henroteau, 727, 892 
Orthopterous Insect Wing in a Selenite Crystal, Dr. R. J. 
Tillyard, 374 ¢ 
Osage Oilfield, Wyoming, A. J. Collier, 548 
Oscillator, Short Wave, at very low Pressures, Char- 
acteristics of a, L. L. Nettleton, 207 
Osmotic Effects, The Origin of. IV., Prof. H. E. Armstrong, 
689 
Osteodystrophic Factors, Some, and their Action accord- 
ing to the Species of Animal, G. Mouriquand and P. 
Michel, 904 
Outdoor Boy, The, edited by E. Wood, 321 
Overvoltage, The Measurement of, Dr. S. Glasstone, 
(Bacillaria 
775 
Overzicht van de theorie en de toepassingen van gassen, 
waarin de onderlinge botsingen der moleculen kunnen 
verwaarloosd worden, Dr. J. ter Heerdt, 736 
Oxford: Early Science in, Part 2: Mathematics, R. T. 
Gunther, 75; University: Press, Catalogue of the, 
127; Dr. R. A. Peters elected Whiteley professor of 
Biochemistry, 204; Sir Archibald E. Garrod appointed 
deputy to Dr. R. A. Peters; the Weldon memorial 
prize awarded to Dr. J. Schmidt, 240; proposal to 
establish a new final school in science and philosophy 
rejected ; reports on Forestry and Rural Economy, 
273; the Osler Memorial Fund ; M. E. Shaw elected 
Radcliffe travelling fellow; Dr. A. D. Gardner 
awarded the Radcliffe prize; the Matteucci gold 
medal handed to Mrs. Sollas as a posthumous honour 
for the late H. G. Moseley, 485; Sir Michael Sadler 
elected Master of University College, 621; an annual 
scholarship in chemistry under the will of Charles 
Day Dowling Gibbs; establishment of a prize by 
Mrs. Emily Poulton, 724; annual report of the 
Savilian professor of astronomy; proposed confer- 
ment of degrees on Sir Ernest Rutherford and Prof. 
L. Lapicque, 828; and Cambridge, Universities of, 
Bill read a second time, gor 
Oxidation: of 1.3.4-Dimethylcyclohexanone and the 
Synthesis of Cyclopentane Diketones, M. Godchot, 
692 ; of the Metals of the Alkaline Earths, The Heat 
of, A. Guntz and Benoit, 243 > 
Oxidations and Reductions in the Animal Body, Dr. H. D. 
Dakin. Second edition, 390 
Oxide of A,-Methylcyclohexene and the Dimethylcyclo- 
hexanols, M. Godchot and P. Bedos, 103 
Oxides, The Action of, and the Oxyacids of Nitrogen on 
Aromatic Urethanes and Ureas at Low Concentra- 
tions of the Reacting Substances, Prof. H. Ryan 
and others 67 
Oxyacetylene Blow-pipe in Spectrum Analysis, Use of the, 
A. de Gramont, 691 
