Nature, 

 April 14, 192 



.] 



Index 



XlVJl 



Pearl (Prof. Raymond), The Nation's Fo<.d : A Statistical 

 Study of a Physiological and Social Problem, 305 



Penrose's Annual. Vol. x.xiii. of the Process Year Book 

 and Review of the Graphic .Arts, 192 1. Edited by \V. 

 Gamble, 755 



Perrctt (Dr. W.), Poetikay : An Essay towards the .Aboli- 

 tion of Spelling : Being a Sequel to " Some Questions 



I of Phonetic Th'-ory," part i., iqi6, 309 



Portraits of Scientists, 372 



Poulton (Prof. E. B.), The Life of Ronald Poulton, 369 



Royal Historical Society, Transactions of the. Fourth 

 Series. Vol. xi., 44 



Savory (A. H.), Grain and Chaff from an English Manor, 



211 



Schrenck-Notzin(< (Baron von), translated by Dr. E. E. 

 Fournier d'.Albc, Phenomena of Materialisation : A 

 Contribution to the Investigation of Mcdiumistic Tele- 

 plastics, 367 



Spitta (E. J.), Microscopy : The- Construction, Theory, 

 and Use of the Microscope. Third edition, 77 



Thompson (\V. P.), Handbook of Patent Law of -Ml 

 Countries. Eighteenth edition, 275 



Universities of the Empire, The Yearbook of the, 1918- 

 1920, Edited by W. H. Dawson, 237 



Victoria History of the Counties of England, The, 105 



Watts (F.), Education for Self-realisation and Social Ser- 

 vice, 435 



Wimperis (Lt.-Col. H. E.), A Primer of Air Navigation, 

 340 



Young (A. P.), The Elements of Electro-Technics, 340 



Phlloiophy and Ptyehology: 



Carr (Prof. H. Wildon), The General Principle of Rela- 

 tivity : In its Philosophical and Historical Aspect, 431 



Goddard (Dr. H. H.), Psychology of the Normal and 

 the Subnormal, 4 



Gould (F. J.), Augustc Comte, 6 



llardwick (J. C), Religion and Science: From Galileo 

 to Bergson, 338 



Huxley (Dr. L.), Thomas Henry Huxley : A Character 

 Sketch, 6 



Lay (Dr. W.), The Child's Unconscious Mind : The 

 Relations of Psychoanalysis to Education : a Book for 

 Teachers and Parents, 4 



Marelt (Dr. R. R.), Psychology and Folk-lore, 207 



Marvin (F". S.), The Century of Hope : A Sketch of 

 Western Progress from 1815 to the Great War. 

 Second edition, 275 



Royce (Prof. J.), Lectures on Modern Idealism, 102 



Sorley (Prof. W. R.), A History of English Philosophy, 

 309 



Swift (Prof. E, J.), Psychology and the Day's Work : 

 A .Study in the Application of Psychology to Daily 

 Life, 4 



Taylor (Dr. A. E.), Aristotlo. Revised edition, 6 



Taylor (R. D.), The Mystery of Life as Interpreted by 

 Science, 499 



Trotter (W.), Instincts of the Herd in Peace and War. 

 Second edition. 275 



Whitehead (Prof. A. N.), The Concept of Nature : 

 Tarncr Lectures dclivi'rrd in Trinity College, Novem- 

 ber, 1919, I02 



Technology: 



Gissing (F. T.), Peat Industry Reference Book, 594 

 Taggart (W. Scott), Cotton .Spinning. Vol. ill. Fifth 

 edition, 45 



Rhinoreros, While, History of the, of the Belgian Congo, 



470 

 Rhodes Scholarships Trust, Statement of the, for i9t<>-90, 



Rice ; Crop in the United States, How Insects afTect the, 

 77T : -Ipaf Hoppers, Destructive, C. S. Misra, 320 ; 

 Reports on, Indian Trade Inquiry. 480 



RIfmann's Method of Inlrifration. Some other Formula; of 

 lnver«iion rrinnef »<■(! with, O. Tedone too 



River : -discharge Measurements. Effect of Turbulence on. 

 Hurst, 609 ; -(low, Rainfall, and Evaporation Records, 

 An Investigation of, Lt.-Col. J. E. E. Craster, 554 



Riveted Joints, the Partition of the Load in. Dr. C. Batho, 



423 



Robber-flies of the Sub-family Asilinic (Diptera), The Mole 

 Genitalia of some, G. H. Hardy, 68 



Robin's Water-music, Prof. \V. Garstang, 351 



Rock : -analysis Diagrams, A Method of, based on 

 Statistics, W. \. Richardson, 848; -paintinjjs of Spain, 

 The, r.Abbd Brcuil, 814; Sculptures in Derbyshire, 

 G. H. Garfitt, 517 



Rockefeller Foundation : Gift to France for Anti-tubirculosis 

 Work, 737; Grants made by the, 585 



Roe Cable Conveyor, The. G. F. Zimmer, 514 



Roman : Pottery, K Handbook to, 537 : Roads of Central 

 and Southern Italy, Dr. T. .Ashby and R. Gardner, 517 



Rome, Ancient, The \Vatcr-supplv of. Dr. T. Ashbv. 390 



Romer Graph Plotter, The, A. G. Thornton, Ltd.. '841 



Rontgen Society, Election of Officers and Council of the, 

 416 



Rook. The Status of the, in its relation to the Farmer, 

 Fruit-grower, and Forester, Dr. W. E. Collinge, 576 



Rosa, Microspore Formation in. Anomalies in. Miss Black- 

 burn, 55 r 



Roscoe and Schorlemmer's Chemistry, 400 



Rose* : Their History, Development, and Cultivation, Rev. 

 J. H. Pemberton. Second edition, 371 



Ross's Seal, Characters of .Adaptation of the Kidney of. to 

 the conditions of .Aquatic Life, R. Anthony and J. 

 Liouville, 67 



Rotating Fluids, Experiments with, G. I. Taylor, 849 



Rowatt Research Institute, The, 67; Dr. Marion B. 

 Richards appointed an .Assistant in the, 199 



Rubber. The Cold Vulcanisation of, 481 



Rural Lore, Collection of, by Welsh Schools, A. E. I.. 

 Hudson, 390 ^ 



Ruscus acfileatus , Linn., Seeding and Germination of, in 

 the South-eastern quarter of England, T. .A. Dvmes, 

 849 



Russia : .Appeal for help for the Scientific and Literary Men 

 in, Lord Montagu of Beaulieu, and others, 598, 606; 

 L. F. Schuster, 728: Position of Scientific Men in. 

 H. G. Wells, 1^2 



Royal : Air Force, Cadet College, Cranwell, Dr. O. S. 

 Sinnatt appointed Professor of Aeronautical Science at 

 the, 134 ; .Arsenal, Woolwich, Dr. J. N. Pring appointed 

 Head of the Physical Chemistry Branch. Research Di- 

 partment, 488 ; Astronomical Sorietv. .Award of the 

 Gold Medal of the, to Prof. H. N. Russell, 736: 

 Presentation of the Gold Medal of the. to Prof. H.N. 

 Russell. 814; College of Physicians of London, appoint- 

 ment of Lecturers, 736 ; Award of the Gold Medal of 

 the, to Dr. W. H. Hamer, 240: Historical .Society, 

 Transactions of the. Fourth .Series. Vol. xi., 44 ; In- 

 stitute of Public Health, The Twenty-sixth .Annual 

 Congress of the, to be held in Geneva in 1921, "- ; 

 Institution of Great Britain, Prof. J. Perrin, and Prof. 

 C. Fabry elected Honorary Members of the. Prof. -A. 

 Keith reelected Fullerian Professor of Physiologv at 

 the, 478 ; Meteorological Society, Election of Officers 

 and Council, 737 : Proposed Incorporation of the Scottish 

 Meteorological .Society with the, 639 ; Photographic 

 Society, Annual Exhibition of the, ijt ; .Society: 

 Anniversary Meeting of the Report of Council, 452 ; 

 Presidential Address; Medallists, 4^1: Award of the 

 Medals of the, 383 ; Bequest to, by E. W. Smithson, 

 415; Recommended Officers and Council of the, 3^1; 

 of Edinburgh, Election of Officers and Council of the, 

 288 



St. Andrews University : Prof. J. C. Irvine appointed Prin- 

 cipal of, S'o; The appointment of Prof. J. C. Ir\-ine 

 as Principal of, 54a 



St. Thomas s Hospital, Prof. H. Macf^nn nppoinietl 

 Director of the Clinical Medical Unit of, 424 



Sakura-jima Eruption of 1914, The. Prof. Omori, 165 



Saline ; Solutions, Albuminous Substances and, " Inter- 

 traction " between. Sir Almrolh Wright 778; The 

 Temperature of the Vapour arising from Boiling, Dr. 



