Nature, 

 February 2, 1924 _ 



Name Index 



xvii 



Nicholson (S. B.), Photographic Magnitudes of Satellites 



of Jupiter, 555 

 Nicolle (C.) and E. Conseil, New Facts concerning Measles, 



226 ; E. Conseil and A. Cuenod, Preventive Vaccina- 

 tion against Acute Conjunctivitis due to the Weeks 



Bacillus, 380 

 Niven (Prof. C), [obituary article], 244 

 Niven (Dr. J.), Observations on the History of Public 



Health Effort in Manchester, 275 

 Nodon (A.), Radioactivity and Solar Radiations, 557 

 Norbury (A. L.), The Volumes occupied by the Solute 



Atoms in certain Metallic Solid Solutions, and their 



consequent Hardening Effects, 850 

 Nordmann (Dr. C), translated by Dr. E. E. Fournier 



d'Albe, The Kingdom of the Heavens : Some Star 



Secrets, 783 

 North (S. H.), Oil Power, 468 

 Noumeroff (B. V.), Perturbations by the Method of 



Quadratures, 555 

 Noyes (A. A.) and Prof. M. S. Sherrill, An Advanced 



Course of Instruction in Chemical Principles, 616 

 Noyes (Prof. W. A.), History of the Development of the 



Theory of lonisation, 180 

 Nunn (Prof. T. P.), Scientific Objects and Commonsense 



Things, 746 ; The Education of the People, 424, 692 

 Nuttall (Prof. G. H. F.), Symbiosis in Animals and Plants, 



423, 657 ; the Pasteur Centenary Celebrations, 22 



Obaton (F.), Experimental Researches on the Reddening 



of Cherries, 75 

 v. Oechelhaeuser (Dr. W.), [obituary], 172 

 Ogg (A.), The Crystalline Structure of the Alkaline Sul- 

 phates, 227 

 Ogilvie (A.), elected chairman of the Royal Aeronautical 



Society, 174 

 Ogilvie (A. G.), Modern Geography as a Study and as an 



Aid, 665 

 Ogilvy and Co., catalogue of Leitz microscopes, etc., 842 

 Okada (Dr. T.), awarded the Symons gold medal of the 



Royal Meteorological Society, 948 

 Okill (J.), Internal-Combustion Engines, 468 

 Oldham (R. D.), The Pamir Earthquake, 191 1, 876 

 Olson, Nitrogen Content of Wheat Grain, 772 

 Omori (Prof.), Earthquakes and Pheasants, 20 

 O'Neill (H.), Hardness Tests on Crystals of Aluminium, 491 

 Onslow (Mrs. M. W.), awarded a prize fellowship by the 



Swedish Federation of University Women, 674 

 Oostingh (Dr. C. H.), Recent Shells from Java, 771 

 Orelkin (B.), Space Formulae of Benzene, Naphthalene, and 



Anthracene, 456 

 Ortlepp (Dr. R. J.), the Gape-worm of Chickens, 374 

 Orton (A.), The Diesel Engine, 468 

 Orton (Dr. J. H.), A Possible Cure for Cancer, 688 ; On 



the Significance of " Rings " on the Shells of Cardium 



and other Molluscs, 10 ; Some New Commensals in 



the Plymouth District, 861 

 Orton (W. A.) and R. K. Beattie, The Biological Basis of 



Plant Quarantines, 289 

 Osborn (Prof. H. F.), Giant Hornless Rhinoceros from 



Mongolia, 67, 218 

 Osgood (T. H.), Variation in Photo-electric Activity with 



Wave-length for certain Metals in Air, 886 

 Osman (C. W.), Geology of the Northern Border of Dart- 

 moor between Whiddon Down and Butterdon Down 



958 

 Ostwald (Prof. Wilhelm), seventieth birthday of, 289 

 Ostwald (Prof. Wo.), translated by Prof. M. H. Fischer. 



Second American edition. An Introduction to 



Theoretical and Applied Colloid Chemistry : " The 



World of Neglected Dimensions," 236 

 O'Sullivan (A. C), Corresponding Points on the Curve of 



Intersection of two Quadrics, 184 

 Otashiro (T.), Photographic Blackening and Coloured 



Light, 808 

 Owen (E. A.) and G. D. Preston, X-ray Analysis of 



Solid Solutions, 745 

 Owen (L.), The Phosphate Deposit of Ocean Island 362 

 Owen (Miss M. N.), Skin Spot of Potatoes, 455 

 Owens (Dr. J. S.), The London Fogs of November 25-27, 



1923, 862 

 Oxley (Dr. A. E.), The Physicist in the Textile Industries, 707 



Paget (Sir R. A. S.), A Primitive Lens, 326 

 Paine (H. H.) and G. T. R. Evans, Measuring the Rate of 

 Coagulation of Colloidal Solutions over Wide Ranges, 



851 



Palmer (C. W.), Powers of Perception of Birds, 688 



Pannekoek (A.), Spectroscopic and Trigonometrical 

 Parallaxes, 702 



Pargiter (F. E.), The Royal Asiatic vSociety, 60 



Pariselle (M.), A New Working Method for the Preparation 

 of Camphene, 119 



Parkes (A. S.), Some Aspects of Reproduction considered 

 in relation to Eugenics, 922 ; The Sex-ratio and 

 Related Phenomena — Foetal Retrogression in Mice, 745 



Partington (Prof. J. R.), Early Greek Chemistry, 590 



Pascal (P.), Constitution and Evolution of the Metallic 

 Oxides and Hydroxides, 747 ; Researches on the 

 Constitution of Insoluble Alkaline Metaphosphates, 

 28 ; The Magnetic Properties of Cyanic and Cyanuric 

 Compounds, 119; The slow formation of a definite 

 compound in mixed crystals, 638 



Pascoe (Dr. E. H.), The Reported Meteorite at Quetta, 241 



Pasteur, L'Qiuvre de, et ses consequences, 290 



Patrick (Dr. A.), appointed professor of medicine in St. 

 Andrews University, 526 



Patte (E.), The Isle of Ashes, an Indo-Chinese Volcano of 

 recent appearance, 348 



Pawlow (Prof. I. P.), experimental demonstration of the 

 Inheritance of an Acquired Nervous Character, 664 



Pear (Prof. T. H.), Imagery in Thinking, 601 



Pearson (E. S.), Table of the Logarithms of the Complete 

 r-Function (for arguments 2 to 1200, i.e. beyond 

 Legendre's Range), 322 



Pearson (Prof. Karl), Charles Darwin, 1809-1882, 245 ; 

 On the Relationship of Health to the Psychical and 

 Physical Characters in School Children, 91 ; Tracts 

 for Computers, 831 



Pease (Sir Alfred E.), Edmund Loder ; Naturalist, 

 Horticulturist, Traveller and Sportsman : a Memoir, 

 469 



Peddie (Prof. W.), Colour Vision and Colour Vision 

 Theories, 362, 621, 828 ; The Trichromatic Theory 

 of Colour Vision, 163 



Pembrey (Dr. M. S.), N. W. MacKeith, W. R. Spurrell, 

 E. C. Warner, and H. J. Westlake, The Adjustment 

 of the Human Body to Muscular Work, 26 



Pendred (L. St. L.), The Value of the History of Technology, 

 701 



Penfold (A. R.), The Essential Oils of Callistemon lanceo- 

 latus and C. viminalis, 408 ; and R. Grant, Eucalyptus 

 Oils as Germicides, 952 ; The Germicidal Values of 

 Australian Essential Oils (exclusive of Eucalypts), 

 Part I., 639 ; The Germicidal Values of the Principal 

 Commercial Eucalyptus Oils and their Pure Active 

 Constituents, 256 ; and F. R. Morrison, The Electro- 

 lytic Reduction of Piperitone, 639 



Pereira (Brig-Gen. G. E.), [obituary article], 837 



Perkins (M.), Breeding Experiments on the Inheritance 

 of Acquired Characters, 238 



Pern (S.), Different Types of Australian Boomerangs and 

 Their Fhght, 348 



Perrett (Dr. W.), Some Questions of Phonetic Theory. 

 Chapter 6 : The Mechanism of the Cochlea, 201 



Perrette (Mile. Berthe), An arrangement of the Electric 

 Arc in a Vacuum allowing the Spectra of Metals to 

 be obtained with very small quantities of material, 814 



Perrin (Prof. J.), Observations on Fluorescence, 460 ; 

 Radio-chemistry of Fluorescence, 674 ; Radio- 

 chemistry and Fluorescence, 711 ; translated by 

 D. LI. Hammick, Atoms. Second English edition, 52 



Perrine (Prof.), Prof. Lindemann's Theory of the Spiral 

 Nebulae, 520 



Perrokis (N.), The Stability, in the presence of Water, 

 of a certain number of Binary Mixtures, 815 



Perry (W. J.), Distribution of Megahthic Monuments, 164 ; 

 Immigration and Degeneracy in the United States, 344 



Fetch (T.), The Diseases of the Tea Bush, 322 



Peters (Prof. R. A.), Inaugural lecture at Oxford, 767 



Pethybridge (Dr. G. H.), appointed mycologist to the 

 Ministry of Agriculture and Fisheries, 333 



Petot (A.), A Characteristic Difference between the Modes 

 of Action of Front and Back Brakes, 563 



