Sature, ■«-"l 

 truary 2, 1922 J 



Index 



XXI 



Reid, 176, 401; Dr. F. A. Bather, 271; J. T. 



Cunningham, 368 

 Bisexuahty in Animals a Function of Motion ? Is, Dr. 



J. H. Orton, 145; G. C. Robson, 212 

 Boyle, Robert, The Resting-place of, Sir W. A. Tilden, 



176 

 Brightness in the Penumbra during an Eclipse of the 



Moon, The Distribution of, F. J- W. Whipple, 497 

 Bro%\Ti Bast and the Rubber Plant, G. Bryce ; The Writer 



of the Note, 81 

 Calendar of Scientific Pioneers, The, Eng.-Comdr. E. C. 



Smith, 567 

 Carborundum for Ruling Test Plates, Use of, W. G. 



Cady, 370 

 Ceratium and Pedalion, A. E. Harris, 340 

 Ceratium furca and Pedalion mirnm, A. E. Harris, 42 

 Chlorine, The Separation of, into Isotopes, Prof. W. D. 



Harkins, 209 

 Chrvsalids, Metallic Coloration of, A. Mallock, 302 ; 



Hon. H. Onslow, 366 

 Classics, The Use of the, W. M. F. P.. 180 

 Communism and Science, Dr. J. W. Mellor, 113 

 Co-operative Indexing of Periodical Literature, H. W. 



Wilson, 43 

 Cosmic Friction : A Query, Sir Oliver Lodge, 275 

 Courtship, The Accessory Nature of many Structures and 



Habits associated with, J- S. Huxley, 565 

 Cylindrical Surfaces, Reflection from, C. O. Bartrum, 436 

 Dushman Equation for the Velocity of a Monomolecular 



Reaction, The, W. E. Gamer, 211 

 Earth, The Age of the. Lord Rayleigh, 335 ; Dr. H. 



Jeffreys, 370 

 Echinoderm Larvae and their Bearing on Classification, 



Prof. E. W. MacBride, 529 ; Dr. F. A. Bather, 530 

 Electric Telegraph, The, T- C. Carter ; The Writer of the 



Note. 568 

 Elongated Bodies to set in the : East and W'est Direction, 



The Tendency of, W. D. Lambert, 528 ; North and 



South Direction, The Tendency of. Sir Arthur Schuster, 



240 ; Col. E. H. Grove-Hills, 403 ; E. A. Reeves, 433 

 Evolution, Some Problems in, W. R. Bousfield, 530 ; Prof. 



E. S. Goodrich, 531 

 Film-photophone, The, W. S. Gripenberg ; The Writer of 



the Note, 307 

 Flames, Simple Sensitive, G. A. Sutherland, 532 

 Gold-coloured Teeth of Sheep, T. Steel, 242 

 Hearing, The Resonance Theory of, Dr. W. Perrett, 569 

 Heath-fires, The Generation of, H. Bury, 83 

 Hedgehog, Habits of the, 242 

 Highest Inhabited House, The, W. Harcourt-Bath ; The 



Reviewer, 179 

 Hvbridity and the Evolution of Species, Prof. J. P. Lotsy ; 



The Writer of the Article, 274 ; Prof. J. P. Lotsy, 400 ; 



Prof. R. Ruggles Gates, 401 ; Prof. J. Bronte Gatenby, 



469 

 Hvdrogen-ion Concentration of the Soil to Plant Distribu- 

 tion, Relation of the. Dr. W^ R. G. Atkins, 80, 568 ; 



M. N. Comber, 146 ; E. A. Fisher, 306 

 Indian Land Mollusca, Dr. N. Annandale, 180, 340; Sir 



A. E. Shipley, 271 

 Industries Act, 1921, Safeguarding of. Prof. L. Bairstow 



and Major A. G. Church, 271 

 Inheritance, Mendelism, and Mutation, Sir G. Archdall 



Reid, 335 

 lonisation Currents, The Measurement of, by Three- 

 electrode Valves, J. C. M. Brentano, 332 

 Japanese Culture Pearls, Dr. H. Lyster Jameson, 528 

 Life and Mind, Sesamy, 83 

 Light in Liquids and Solids, The Molecular Scattering of. 



Prof. C. V. Raman, 402 

 Limnaea peregra. Sinistral, Prof. A. E. Boycott, 403 

 Lizards, Behaviour in, E. L. Gill, 179 

 Lumbricus terrestris, L., Miill., Penial and Genital Setae of. 



Dr. J. Stephenson, 337 

 Materialism, Relativitv and. Dr. N. R. Campbell, 399 ; 



Prof. H. Wildon .Carr, 400 ; H. Elliot, 432 ; Prof. 



H. Wildon Carr; Canon E. McClure, 467; Dr. H. 



Jeffreys, 568 ; S. V. Ramamurty ; Dr. N. R.Campbell, 



569 



Metaphysics and Materialism, Dr. Norman R. Campbell, 



399 ; Prof. H. Wildon Carr, 400 

 Mercury, The Separation of, into Isotopes, Prof. W. D. 



Harkins and R. S. Mulliken, 146 

 Micro-barograph, A Simple, A. Wechsler, 469 

 Microscope Illumination and Fatigue, H. J. Denham, 



369, 496 ; J. E. Barnard, 468, 566 

 Molecules, The Constitution of. Prof. J. R. Partington. 242 

 Newt and Slow-worm, Breeding Periods of, R. Elmhirst, 



179 

 Nomenclature, Curiosities of. Rev. T. R. R. Stebbing, 340 

 Ophion luteus, Sir Herbert Maxwell, 339, 436 ; Dr. C. J. 



Gahan ; R. Stenton, 403 

 Optical Industries, The Development of, J. W. Atha & Co., 



238; The Writer of the Article, 239; Dr. J. W. French, 



304; M. P. Swift; Prof. K. C. Browning, 305 

 Oyster : Sex-change in the Native, W. L. Calderwood, 272 ; 



Spat (1921), An, with Mature Male Sexual Products, 



Dr. J. H. Orton, 500 

 Pearls, Japanese Culture, Dr. H. Lyster Jameson, 528 

 Peronospora Schleideni, Unger, The Presence of Perennial 



Mycelium in, P. A. Murphy, 304 

 Philosophical Magazine, The, Sir Oliver Lodge, 12 

 Physiological Phenomenon, A Curious, F. C. Dannatt ; 



Prof. T. Graham Brown, 529 

 Pickering Series in O Type Stars, The, H. H. Plaskett, 210 

 Piezo-electricity ? Muscular, E. W. Russell, 275 ; F. 



Buchanan, 340 

 Pisidium clessini in British Lochs, A. W. Stelfox, 40 

 Plankton, Illumination of, Lt.-Comdr. G. C. C. Damant, 42 

 Prismatic Structure in Optical Glass. Dr. J. Weir French, 



567 

 " Radiant " Spectrum, The, Prof. C. V. Raman, 12 ; 



Dr. H. Hartridge, 467 

 Radiation and Chemical Action, T. W. J. Taylor, 210 ; 



Prof. \\. C. McC. Lewis, 241 

 Radio-elements, The Isotopy of the. Dr. M. L. Neuburger, 



180 

 Radium Equivalent, The Designation of the, N. E. Dorsev, 



40 

 Rainfall, July, Remarkable, at Blue HiU, Mass. Dr. A. 



McAdie, 12 

 Rainfall Records at Rothamsted, W. D. Christmas, 307 

 Reflection " Halo " of (Semi-) Cylindrical Surfaces, J. H. 



Shaxby, 369 

 Relativity : Particles starting with the Velocity of Light, 



Prof. E. Kasner, 434 ; and Materialism, H. Elliot, 432 ; 



Prof. H. Wildon Carr ; Canon E. McClure, 467 ; Dr. H. 



Jeffreys, 568 ; S. V. Ramamurty ; Dr. N. R. Campbell, 



569 

 Rothamsted, Rainfall Records at, W. D. Christmas, 307 

 Ruling Test Plates for Microscopic Objectives : Sharpness 



of Artificial and Natural Points, A. Mallock, 10 

 Russ, Dr., The Apparatus of. Prof. C. V. Boys, 40 

 Russia, Scientific Workers in. Prof. V. Korenchevskv, 469 

 Scarlet-runner Beans, Bees and, H. B. Heywood, 147 

 Science, Communism and. Dr. J. W. Mellor, 113 

 Science," The " Proletarisation of, in Russia, Dr. H. 



Lyster Jameson, 147 ; Prof. B. Brauner, 367 

 Scientific : Inquiry a Criminal Occupation ? Is, Prof. 



H. E. Armstrong, 241 ; Periodicals, World List of, 



Prof. W. W. Watts, 531 ; Publication, Dr. W. B. 



Brierley, 41 ; Dr. F. A. Bather ; J. A. H., 144 ; C. A. 



Hoare, 179 

 Sea, The Colour of the. Prof. C. V. Raman, 367 

 Sex : -change in the Native Oyster, W. L. Calderwood, 272 ; 



-manifestations and Motion in Molluscs, Dr. J. H. 



Orton, 303 ; G. C. Robson, 403 

 Smoke-veil, The, Dr. W. L. Balls, 499 

 " Smoky " Quartz, Prof. C. V. Raman, 81 

 Snails, The Dispersal of, by Birds, Prof. T. D. A. Cockerell, 



496 

 Space-Time Co-ordinates, A System of, J. L. Sj*nge, 



275 

 Speaking Films. L. Pendred, 338 ; Prof. A. O. Rankine, 



339 

 Sunlight : The Action of, A Case for Inquiry, Dr. C. W. 



Scileeby, 466 ; Sir Oliver Lodge, 496 

 Sunrise : and Sunset, The Duration of. Dr. W. J. Fisher , 



