xlviii 



Index 



I 



Nature, 

 April J4, 1921 



G. Harker, 683 ; Double Decompositions and the Phase 



Rule, E. Rengade, 746 

 Salters' Institute of Industrial Chemistry, Award of 



Fellowships, 519 

 Salts : Influence of, on Growth, Dr. C. Shearer, 486 ; The 



Separation of Two, having a Common Ion, A. T. 



Schloesing, 521 

 San Jos^ Scale, The, 773 

 Saprolegnia, Certain Variations of the Sporocyst in a 



Species of, M. I. Collins, 135 

 SAri, Ornamentation of the, in the Cuddapa District of the 



Madras Presidency, R. S. Nicholson, 320 

 Saturn's Rings, Disappearance of, Hepburn, Ainslie, 



Steavenson, and Watcrfield, 610 

 Saussure, The Life of Horace B^n^dict de, Dr. D. W. 



Freshfield, with the collaboration of H. F. Montagnier, 



7S3 

 Schmerzproblem, Das, Prof. A. Goldscheider, 755 

 Scholarships and Free Places in Secondary Schools, 421 

 Schools in their relation to Life, Miss Strudwick, 579 

 Science : and Education, Some Aspects of, A. Vassall, 6t~ • 

 and Farming, 6^g ; and Fisheries, H. G. Maurice, 410 : 

 Prof. W. C. Mcintosh, 565; H. G. Maurice, 566; Prof. 

 J. Stanley Gardiner, 628 ; and Labour, 37 ; and Religion, 

 The Unity of, i ; and Research, Importance of, to Indus- 

 try, Sir Robert Home, 815 ; and the Cenotaph, 365 ; Ger- 

 man Course, G. W. P. Moffatt. With a Glossary by 

 J. Bithell. Third edition, 595; in History, 44; in 

 Medicine, Birth and Growth of, Sir Frederick An- 

 drewes, 611; Masters' Association, The, 677 ; Museum, 

 South Kensington, Aeronautics at the, 229 ; Symbolic 

 Language of, Sir Napier Shaw, 301 ; Teaching in 

 Memphis, Tennessee, 265 ; The Advancement of, 1920. 

 Addresses delivered at the 88th Annual Meeting of 

 the British Association, 107 ; The Application of, to 

 Agriculture, 429 ; The Disinterested Character of, in 

 View of Certain of its Working Maxims, A. E. Heath, 

 554 ; The History of. Sir W. H. Bragg, 220, 250 ; The 

 Practical Teaching of, 493 

 Scientific ; and Industrial Research, Advisory Council to the 

 Committee of the Privy Council for, Prof. J. B. Farmer 

 appointed a Member of the, 51; ; Department of, The 

 Activities of the, Prof. F. Soddy ; Dr. J. W. Evans ; 

 J. W. McConnell, 187; J. W. Williamson, 227; The 

 Policy and Administration of, 353 ; Report of the Food 

 Investigation Board for the Year 1919, 774; and Tech- 

 nical Workers in the United States Civil Service, Major 

 A. G. Church, 843 ; British Laboratory and, Glassware, 

 C. Andrews, 440; Education and Research, Brunner, 

 Mond and Co. 's Gift for, Justice Eve, 415; in the 

 Metropolis, 653 ; Glassware Industry, The, T. L. 

 Swain, 759 ; Investigation of the Ocean, The, Prof. 

 W. A. Herdman, and others, 30 ; Literature, Inter- 

 national Conference on the International Catalogue of, 

 195 ; Men Employed in Government Service, The Pay- 

 ment of, 511 ; Papers, Collected, Prof. J. H. Poynting, 

 559; Pioneers, Calendar of, 585, 617, 650, 681, 713. 

 745. 777, 817, 847; Terms, A "Dictionary of, I. F. and 

 Dr. W. D. Henderson, 498 

 Scientists : Portraits of, 372 ; Reference Book and Diary, 



Woolley's, 609 

 Scotland, Central Coalfield of, Memoirs on the Economic 



Geology of the, 544 

 Scottish : County Geographies, Prof. J. W. Gregory, 561 ; 

 Fauna, Man and the, 568 ; Dr. J. Ritchie, 727 ; The 

 Reviewer, 728 ; National Antarctic Expedition : Report 

 on the Scientific Results of the Voyage of S.Y. 

 Scotia during the Years 1902, 1903, and 1904, 

 under the Leadership of Dr. W. S. Bruce. Vol. vii., 

 Zoology. Parts i.-xiii., Invertebrates, 398; Ornitho- 

 logy in 1919, Miss L. J. Rintoul and Miss E. V. 

 Baxter, 88 

 Scratch-reflex in the Cat, The, Dr. W. Kidd, 9 

 Scyllium and Chrysemys, The Early Development of the 



Pronephros in, J. H. Lloyd, 487 

 Sea: Gravity at, The Investigation of, Prof. W. G. 

 Duffield, 732 ; -level, Possibility of a General World- 

 wide Sinking of, Prof. R. A. Daly, 576, 587 ; The 

 Movements of the, Dr. E. C. Jce, 487 

 Secondary Schools, Scholarships and Free Places in, 421 



.Secretion, Phenomena of, Participation of the Cellular 



Nuclei in the, M. Doyon, 682 

 Seedlings: in Wind, The Growth of, Prof. L. Hill, 488; 



Resistance of, to Starvation, H. Coupin, 231 

 Seismic : Hypocentre, Determination of the, E. Oddonc, 491 ; 



Shocks in the Comrie Centre, 190 

 .Senecio : Disease in Cape Province, Dr. F. C. Willmot and 

 G. W. Robertson, 321 ; jacobaea, The Alkaloids of, 

 A. H. MacKay, 503 

 Sex, The Determination of, Dr. W. Bateson, 719 

 Se-xual Differences of Weight in the Human Body and 



Organs, M. Boldrini, 522 

 Sharks and Rays, The Classification of the Vertebral Centra 



in, Dr. W. G. Ridewood, 392 

 Sheep Panics, 710 

 Sherrington's, Prof., Work on the Nervous System, Dr. 



E. D. Adrian, 442 

 Ship, The Starting of a, J. K. Whittemore, 587 

 Ships, The Direction of, at the Entrance of Ports and 

 Channels by a Submerged Electric Cable, L. A. Herdt 

 and R. B. Owens, 746 

 Shoals and Channels, The Aerial Photography of, Dr. 



W. T. Lee, 608 

 Shock, Waves of, Ch. Den^, 330 

 Silica Glass, Double Refraction and Crystalline Structure 



of, Lord Rayleigh, 553 

 Silkworm, Excretory System of the, A. Foa, 100 

 Silkworms, Eggs of. Colouring Matters from the, L. 



Pigorini, 35 

 Silver-plating : Commercial, A . New Maximum Current 

 Density in, F. Mason, 521 ; Solutions, Old, 7he 

 Chemical Composition of, G. B. Brook and L. W. 

 Holmes, 521 

 .Siouan Tribes, .Anthropometry of the, L. R. Sullivan, 167 

 Sipunculideae, The Biological Semi-permeability of the 



External Walls of the, C. Dekhuyson, S18 

 Siren Harmonics and a Pure-tone Siren, E. A. Milne and 



R. H. Fowler, 714 

 Size : A Neglected Factor in Stelar Morphology, Prof. 



I". O. Bower, 394 

 Skjellerup Comet, The, H. Godard ; M. Michkovitch, 682; 



A. Schaumasse, 778 

 Sky: Night, Colour of the. Lord Rayleigh, 8; Splendours 

 of the, Isabel M. Lewis ; Dr. A. C. D. Crommelin, 309 

 Sleeping Sickness, Lake Victoria and the, j6i 

 Slide Rules and How to Use Them, T. Jackson, 435 

 Small Holding and Irrigation : The New Form of Settle- 

 ment in Palestine, Dr. S. E. Soskin, 434 

 Smallpox and Alaslrim, The Relationship of, Dr. M. 



Copeman, 575 

 Smith, William, His Maps and Memoirs, T. Sheppard, 144 

 Smithsonian : Institution Selection of Scientific Papers, 354 ; 



Meteorological Tables. Fourth, revised, edition, 142 

 Smoke Abatement and Housing Schemes, 517 

 Snails, Fresh-water, Experimental Infestation of, F. G. 



Cawston, 522 

 Snake, Tragic Death Feint of a, Dr. W. E. Bartlett, 503 

 Soap Solutions, Prof. McBain, and others, 673 

 Soaps, The Ultra-microscopic Structure of, W. F. Darke, 



Prof. J. W. McBain, and C. S. Salmon, 848 

 Soaring Flight, The Problem of. Dr. E. H. Hankin and 



F. Handley Page, 51S 

 Social : Fitness, Heredity and, 360 ; Worker, Facts and 



Theories for the, 497; C. R. Attlee, 497 

 •Society Italiana delle Scienze, Rome, Dr. G. E. Hale 



elected a Foreign Member of the, 55 

 Societi Italiana per lo Studio della AHmentazione, 



Bollettino della, Nos. 1-2, 56 

 Soci^t^ de Physique et d'Histoire Naturelle de Geneve, 



Compte rendu des siances, April-July, 58 

 Sociology, An Introduction to, for Social Workers and 



General Readers, Prof. J. J. Findlay, 497 

 Soil : Survey Work in North Wales, G. W. Robinson, 582 ; 



The Awakening of the, A. Lumifere, 426 

 Solar: Eclipse, The Total, of September, 1922, H. A. Hunt, 

 292 ; Facute, An Apparent Earth-efTect on the Distri- 

 bution of, E. W. Maunder, 418 ; Observations on, and 

 Photographs of Calcium Flocculi, Rev. A. L. Cortie, 

 358; Lines, The Displacement of. Dr. C. E. St. John, 

 789 ; Period, New Determination of the, Based on 



