Nature, J 
Angust 11, 1923 
Title Index 
XXXV 

German Book Prices, Prof. D. H. Peacock, 362 
Germanium, The Isotopes of, Dr. F. W. Aston, 771 
Golgi Bodies in Protozoa, Stages of, Miss S. D. King and 
Prof. J. B. Gatenby, 326 
Green Flash at Sunset, The, J. Evershed, 13 
Gregarine Parasite of Leptoplana, A New, Prof. B. L. 
Bhatia, 116 
Growth, Some Experiments on Rate of, in a Polar Region 
(Spitsbergen) and in England, Dr. J. H. Orton, 146 
Hemoglobin: Adsorption and, Sir W. M. Bayliss, 666 ; 
Prof. A. V. Hill, 843; J. Barcroft; N. K. Adam, 844; 
W. E. L. Brown, 881 ; The Measurement of the Rates 
of Oxidation and Reduction of, Dr. H. Hartridge and 
F. J. W. Roughton, 325; -Content and Surface of 
_ Red Blood-Cells, Relation between, Dr. E. Gorter, 845 
Hafnium : On the New Element, Dr. D. Coster and Prof. 
G. Hevesy, 182, 252; The Optical Spectrum of, H. M. 
Hansen and S. Werner, 322; and New Zealand Sand, 
Dr. A. Scott, 598; and Titanium, Sir T. E. Thorpe, 
252; W. L. Fox, 429 
Hardness and Penetration, Experiments on, A. S. E. 
Ackermann, 17; E. Mardles; H. O'Neill, 116 
Haze on Derby Day—June 6, Dr. J. S. Owens, 848 
Heape and Grylls Rapid Cinema, The, W. Heape, 881 
Hearing, The Resonance Theory of, Sir James W. Barrett ; 
G. Wilkinson, 396; Prof. H. E. Roaf, 498 
Heat, The Mechanical Equivalent of, Prof. T. H. Laby, 877 
Helium : Neutral, The Spectrum of, Dr. L. Silberstein, 46 ; 
Prof. W. M. Hicks, 146; The Crossed-orbit Model of, 
its Ionisation Potential, and Lyman Series, Dr. L. 
Silberstein, 567; Tracks of a-Particles in, Prof. D. M. 
Bose and S. K. Ghosh, 463 
Herapath’s Artificial Tourmalines, Dr. M. Nierenstein, 291 
Hermit-crab, The, and the Anemone, A. T. Watson, 464 
Hydra, Green and Colourless, Prof. S. J. Hickson, 601 
Hydrogen, Active: by the Action of an Acid on a Metal, 
Prof. A. C. Grubb, 600; by Electrolysis, Prof. A. C. 
Grubb, 671 
Immunising Diseases, Epidemiology of, Martini’s Equa- 
tions for the, Dr. A. J. Lotka, 633; Prof. G. N. Watson, 
808 
Indian Sketches, A Lost Collection of, Lt.-Col. H. H. 
Godwin-Austen, 845 
Industry, Labour and Science in, Prof. F. Soddy, 497; 
F. S. M., 498 
Insects and Arachnida, Tactile Vision of, J. P. O’Hea, 
498; G. H. Locket, 570 
Insulin: Dr. H. H. Dale, 253; Effect of, upon Blood 
Sugar Concentration, L. B. Winter and W. Smith, 810 
Ionised Gas, The Opacity of an, J. Q. Stewart, 186 
Isotopic Ions, Separation of, J. G. Pilley, 848 
Kammerer’s, Dr.: Alytes, Dr. W. Bateson, 738, 878; 
Experiments, Prof. E. W. MacBride, 841 
Labour and Science in Industry, Prof. F. Soddy, 497; 
F. S. M., 498 
Lepidoptera, Spermatogenesis of the, Prof. J. Bronté 
Gatenby, 568; H. G. Cannon, 670 
Light: Dispersion and Scattering of, in Gases and 
Liquids, The Complex Anisotropic Molecule in Relation 
to the Theory of, Prof. L. V. King, 667; Elements, 
The, and the Whole Number Rule, Dr. F. W. Aston, 
739; -Quanta, The Nature of, H. Bateman, 567; 
Sensitiveness, Vision and, J. P. O’Hea, 705 
peg Equality, The Definition of, Prof. G. H. Bryan, 
183 
Liquid State, The Nature of the, Prof. C. V. Raman; 
Sir W. H. Bragg, 428 
Liquids, Viscosity of, A Theory of the, Prof. C. V. Raman, 
532, 600; R. M. Deeley, 774 
Lubrication, The Latent Period in, Ida Doubleday and 
W. B. Hardy, 182 
Magnet, A Levitated, F. H. Glew, 669 
Magnetic Disturbance of March 24-25, The, Rev. A. L. 
Cortie, 534 
Maketu Sand, Black, Constitution of, Dr. C. J. Smithells 
and F. S. Goucher, 397; Dr. A. Scott, 463 
Man, Biology of, Prof. Karl Pearson; J. S. H., 809 
Martini’s Equations for the Epidemiology of Immunising 
Diseases, Dr. A. J. Lotka, 633; Prof. G. N. Watson, 808 
Medical Education, Sir G. Archdall Reid, 50, 324; Prof. 
W. J. Dakin, 151 
Megalithic Monuments, Distribution of, O. G. S. Crawford, 
602 
Mendelian Genes, The Function of, J. S. Huxley, 286; 
Prof. E. W. MacBride, 394 
Mentone, The Phantom Island of, Prof. G. H. Bryan, 430 
Mercury: A New Phototropic Compound of, Prof. Y. 
Venkataramaiah and Bh. S. V. Raghava Rao, 775; 
Separation of, into Isotopes in a Steel Apparatus, 
Prof. W. D. Harkins and S. L. Madorsky, 148 
Metallic Crystals and Polarised Light, J. H. Shaxby, 431 
Metals, Pressure of Fluidity of, A. S. E. Ackermann, 534 
Meteorite at Quetta, Slag mistaken for a, G. H. Tipper, 704 
Meteorological: Disturbance, A, of an_ Oscillatory 
Character, Prof. W. G. Duffield, 598; Nomenclature 
and Physical Measurements, Sir Napier Shaw, 218; 
Dr. H. R. Mill, 327 
Microphonic Flames, Dr. Lee de Forest, 739 
Microscope, Industrial Applications of the, A. G. Lowndes, 
358 
Microscopic Bodies, The Determination of fH of, C. F. A. 
Pantin, 81 - 
Millibar in Aerodynamics, Use of the, Major A. R. Low, 535 
Mirage, A Double-Vertical-Reflection, at Cape Wrath, 
D. Brunt, 222 
Molecular: and Crystal Symmetry, T. V. Barker, 632; 
Dr. J. W. Evans; G. Shearer and W. T. Astbury, 740 ; 
Oscillation, Selective Interruption of, A. Fairbourne, 
149; R.d’E. Atkinson, 326 
Moonlight, Colour Temperature and Brightness of, W. E. 
Forsythe, 533 
Museums, Prof. T. D. A. Cockerell, 184 
Nature Study and Phenology, J. E. Clark and I. D. 
Margary, 49 
Nebule, Spiral, Gravitation and Light-Pressure in, Sir 
Oliver J. Lodge, 702; Dr. J. H. Jeans, 806; Prof. 
F. A. Lindemann, 806, 881 
Nightingale in Uganda, Dr. G. D. Hale Carpenter, 636 
Nitrogen: and Hydrogen, The Ionising Potentials of, 
Dr. H. D. Smyth, 810; Fixation of, by Plants, E. 
Whitley, 187 
Nomenclature, The Rule of Priority in, F. Chapman, 148 ; 
Dr. F. A. Bather, 182 
Occult Phenomena and After-images, Dr. F. W. Edridge- 
Green, 16 
Odorous Strength, Factors of, T. H. Durrans ; 
Perrycoste, 359 
Organ-pipe Diatom (Bacillaria paradoxa), Distribution of 
the, J. W. Williams, 116 
Overvoltage, The Measurement of, Dr. S. Glasstone, 775 
Oxygen and Hemoglobin, The Combination between, and 
the Criteria of Adsorption, N. K. Adam, 496 
Oysters and other Lamellibranchs, The Cause of Chamber- 
ing in, Edith Worsnop and Dr. J. H. Orton, 14 
Paleontology and Archaic Fishes, Prof. J. Graham Kerr, 
Be. Es 
113 
Paradromic Rings, Dr. G. T. Bennett, 882 
Permanent Image on Clear Glass, A, E. Robinson, 569 ; 
Dr. J. W. French, 570; Dr. T. J. Baker, 743 
Perseid Meteors in July 1592, Dr. J. K. Fotheringham, 
774; W. F. Denning, 848 
Phosphates as Fertilisers, Discovery of the Use of, Sir 
John Russell and A. Henderson Smith, 116 
Phosphorescence caused by Active Nitrogen, Prof. E. P. 
Lewis, 599; W. Jevons, 705 
Physical Literature on the Continent, Dr. R. W. Lawson, 
635 
Planck Constant h, The Value of the, R. T. Birge, 811 
Pond Snail, The Name of the, F. A. B., 150 
Porto Santo in Pleistocene Times, Prof. T. D. A. Cockerell, 
464 
“Principia,’’ Definitions and Laws of Motion in the, 
Prof. W. Peddie; F. E. Hackett, 395 
Psilotacez, Modern, and Archaic Terrestrial Plants, Prof. 
B. Sahni, 84 
Puzzle Paper Band, A, Prof. C. V. Boys, 774; Annie D. 
Betts; Dr. G. T. Bennett, 882 
Radioactive Disintegration, Origin of, S. Rosseland, 357 
Rainfall Data, Paradoxical, Prof. A. M‘Adie, 362; R. A. 
Fisher, 465 
Rana temporaria, An Overlooked Feature in Four-legged 
Tadpoles of, O. H. Latter, 151 
