Nature, \ 



Augyist 12, 1 922 J 



Index 



xxxix 



Nubi, Le, L. Taffara. Parte I., II., 301 



Nucleolus, Morphology and Physiology of the, R. S. 

 Ludford, 666 



Nucleus, Shape of the, and the Mechanical Causes, Prof. 

 Champy and H. M. Carleton, 22 



" Nurse-hound," The Term, E. Ford, 55 



Nut Grouang, R. T. Morris, 337 



Nyasaland : A Handbook on Cotton and Tobacco Cultiva- 

 tion in, A Guide to Prospective Settlers, J. S. J. 

 McCall, 337 



Ocean : Island, The Phosphate Deposit of, L. Owen, 62 ; 



Research and the Great Fisheries, G. C. L. Howell, 



201 

 Oceanography of the Gibraltar Region, Dr. Johs. Schmidt, 



45 



Octet Theory, A Modified, 629 



Oil: Engineering and Finance, No. i, 350; Firing for 

 Ranges and Steam Boilers, E. C. Bowden -Smith, 204 ; 

 Geologist, Field Mapping for the, C. A. Warner, 474 ; 

 on the Surface of a Sheet of Water, Velocity of Ex- 

 tension of Thin Layers of, P. Woog, 158 ; Shale as a 

 Source of Gasoline, 594 



Oils, Fats, and Fuels, T. Hull, 774 



Oleic Acid, The Catalytic Decomposition of, A. Mailhe, 567 



Oligocene Mosquitoes in the British Museum, J. W. 

 Edwards, 598 



Opalescence, The Variations of Critical, with the Tem- 

 perature and the Wave-length of the Incident Light, 



A. Andant, 799 



Opalina, Nuclear Division in. Prof. R. W. Hegner and Dr. 

 Wu, 319 



Optical : Instruments, The Classification of, T. Smith, 830 ; 

 The Photometry of, J. Guild, 431 ; Resolving Power 

 and Definition, T. Smith, 745 ; Rotatory Dispersion, 

 Prof. T. M. Lowry and Dr. P. C. Austin (Bakerian 

 Lecture), 447 ; Society, Election of Officers of the, 385 ; 

 of America, Journal of the. Dr. L. Silberstein appointed 

 an Associate Editor of the, 724 ; Theories, Dr. S. 

 Brodetsky, 706 ; Theories, Based on Lectures delivered 

 before the Calcutta University, Prof. D. N. MalUk. 

 Second edition, 706 ; Three - apertures Problem, 

 The, T. Smith, 157 



Optics, Examples in. Compiled by Dr. T. J. I 'A. Bromwich, 



235 



Optik, Physikalischen, Die Prinzipien der, historisch und 

 erkenntnispsychologisch entwickelt, E. Mach, 706 



Optisches Instrument, Die Brille als. Prof. M. von Rohr, 

 Dritte Auflage, 772 



Oranges on Keeping, The Transformations undergone by, 

 G. Andre, 30 



Organic : Dependence and Disease : Their Origin and 

 Significance, Dr. J. M. Clarke, 708 ; Sulphur Com- 

 pounds, The Auto-oxidation of, M. Delepine, 763 ; 

 Syntheses : An Annual Publication of Satisfactory 

 >Iethods for the Preparation of Organic Chemicals, 

 Vol. I, 443 



Organism, The, and Environment, Dr. F. B. Sumner, 456 



Organo-metallic Compounds, An Attempt at the System- 

 atic Extension of the Preparation of, A. Job and R. 

 Reich, 800 



Orites excelsa, R. Br. (family Proteaceae), One of the 

 Austrahan Silky Oaks, Specimens of Wood of. Dr. A. 



B. Rendle, 194 



Osage Tribe of American Indians, The, F. la Flesche, 756 



Oxford : and Cambridge and the Royal Commission, 465 ; 

 Report of the Royal Commission, 428 ; University, 

 A. L. Dixon appointed Professor of Pure Mathe- 

 matics, 394 ; The Romanes Lecture to be delivered 

 by Prof. A. S. Eddington ; Rejection of Preamble of 

 a' Statute to discontinue the Delegacy of the Univer- 

 sity Museum, 155 ; Press, Some Account of the, 1468- 

 1921, 514 



Oxides : in Washington's Collected Analyses of Igneous 

 Rocks, The Distribution of, W. A. Richardson, 126 ; 

 The Reduction of, by Hydrogen, E. Berger, 799 



Oxygen Consumption, Apparatus for Measuring, Prof. A. 

 Krogh, 123 



Oyster, The Blood-cells of the, Dr. J. H. Orton, 612 



Pacific, Problems of the. Sir Haltord Mackinder, 91 



Padua, University of, The Seventh Centenary of the, 

 486 ; The 700th Anniversary of the. Prof. E. w! 

 Scripture, 752 



Palaeontological Research, Records of, 561 



Palm Pritchardia, The Geographical Distribution of the, 

 the late Prof. O. Beccari and Prof. J. Rock, 392 



Palms, The Development and Morphology of the Leaves 

 of, Agnes Arber. 499 



Para Rubber-tree, The Brown Bast Disease of the. Dr. 

 S. E. Chandler, 357 



ParaboUc Wage, The, C. Lallemand, 566 



Parallaxes and Proper Motions, Dr. Van Maanen, 318 



Paralysis, General, Histo-microbiological Researches on, 

 Y. Manouelian, 667 



Paramecium aurelia at Yale University, Present Status of 

 the Long - continued Pedigree Culture of, L. L. 

 Woodruff, 159 



Parasitic : Amoeba with Pathogenic Capacities, A, 

 Prof. C. A. Kofoid and Dr. Olive Swezy, 282 ; Worms 

 from Animals, Dr. G. A. MacCallum, 187 ; of Man 

 and Methods of suppressing them, Major F. H. 

 Stewart, 379 



Parasitism and Symbiosis, F. A. Potts, 643 



Parasitisme, Le, et la symbiose, Prof. M. Caullery, 643 



Parfumerie, Manuel de, I. Lazennec, 774 



Particle Emission, Random Direction of a. An Attempt 

 to influence the, G. H. Henderson, 398 



a-Particles as Detonators, G. H. Henderson, 749 



Passivity and Overpotential, U. R. Evans, 257 



Pasteur : and his Work, L. Descour. Translated by 

 A. F. and Dr. B. H. Wedd. 805 ; the Centenary of 

 the Birth of, 486 



Pasteur's Scientific Career, 805 



Patents and Chemical Research, H. E. Potts, 338 



Pathological and Bacteriological Laboratories, The Associa- 

 tion of Assistants in, 488 



" Patternscope, " The, 724 



Pearls, Cultivated Japanese, A Method of recognising, 

 J. Galibourg and F. Ryziger, 631 



Peat, the Winning and the Utilisation of, A Handbook on, 

 A. Hausding. Translated from the third German 

 edition by Prof. H. Ryan, 774 



Peaty Soils, Spontaneous Ignition of, E. A. Andrews, 77 



Pebrine in Silkworms, C. M. Hutchinson, 253 



Peltier Effect, The, E. H. Hall, 159 



Pencil Markings in the Bodleian Library, C. Ainsworth 

 Mitchell, 516 



Pendulations-Theorie, Die, Prof. H. Simroth, 809 



Pendulum and a Chronometer, Experiments relating to 

 the Course of a, J. Lecarme, 831 



Penny, The Power of the, H. AUcock, 724 



Peoples of All Nations, Edited by J. A. Hammerton. No. 

 I. 475 



" Peptone," The Action of, on Blood and Immunity 

 thereto, J. W. Pickering and J. A. Hewitt, 430 



Perfumery : The Raw Materials of. Their Nature, Occur- 

 rence, and Employment, E. J. Parry, 305 



Perfumes, Essential Oils and Fruit Essences used for 

 Soap and other Toilet Articles, Dr. G. Martin, 271 



Personal Beauty and Racial Betterment, Prof. K. Dunlop, 

 339 



Peru : Ancient, Culture of, T. A. Joyce, 187 ; Carboni- 

 ferous Plants from. Prof. A. C. Seward, 598 ; Tertiary 

 Fossils of, H. Woods, T. W. Vaughan, and J. A. 

 Cushman, 561 



Petrole, Exploitation du, par puits et galeries, P. de 

 Chambrier, 443 



Petroles, Technique des, R. Courau, 548 



Petroleum : Sir Boverton Redwood. Fourth edition. In 

 three volumes, 403 ; A Treatise on. Sir T. H. Holland, 

 403 ; Commission, The International, Prof. J. S. S. 

 Brame, 497 ; Divining in France, Dr. H. Moineau and 

 M. Regis, 247 ; Geology, Field Methods in, Dr. 

 G. H. Cox, Prof. C. L. Dake, and Prof. G. A. Muilen- 

 burg, 474 ; Imperial Institute : Monographs on 

 Mineral Resources, with special reference to the 

 British Empire, 475 ; in a Well at Darcy, near 

 Dalkeith, 654 ; Industry, The. Edited by A. E. 

 Dunstan, 774 ; Resources of California, 188 



Petrological Microscope, A, 58 



