Nature, 

 September 29, 192 



.] 



Index 



xlvii 



den Chemischen Elementen, Prof. K. Fajans, Dritte 

 Auflage, 583 



Radiogoniometry and Atntospheric Influences, M. Roth^, 

 542 



Radiological : Installations, Concerning the Danger of, 

 M. Menard and Pestel, 447 ; lonometric Arrangement, 

 A, M. Solomon, 702 



Radiology, Congress of. Postponement of the, 277 



Radioscopic Couch, A New Model, Newton ana Wright, 

 Ltd., 437 



Radium : and Mesothorium, The 7 Radiation and the Evolu- 

 tion of Heat from, Mme. P. Curie, 382 ; gift of, to 

 Mme. Curie, 402 ; X-rays and. Protective Measures 

 against, 557 



Railway Electrification in the United States, The 

 Economic Aspects of, A. H. Armstrong, 404 



Railways, The Width of, A. Ross, 596 



Rainfall : British, 1919, 71 ; Explosions and the Precipita- 

 tion of, 659 ; Maps, Average Monthly, A New Method 

 of Constructing, M. de Carle S. Salter, 30 ; Rate Re- 

 corder, Negretti and Zambra's, 117 



Rain-!?auges, the Design of, 824 



Ramsay, the late Sir William, Memorial Tablet to, to be 

 Placed in Westminster Abbey, 691 



Rattlesnakes, Facts about, W. S. Griswold, 245 



Ray Society, Election of Officers and Council of the, 115 



Rayleigh, the late Lord : Some Aspects of the Scientific 

 Work of. Prof. A. W. Porter, 252 ; Scientific Papers, 

 546 



Rays, Tracing, through an Optical System, T. Smith, 126 



Reale Istituto Lombardo di Scienze e Lettere di Milano, 

 Dr. E. J. Russell appointed a Foreign Corresponding 

 Member of the, 402 



Realism, A Study in, Prof. J. Laird, 228 



Reality Ultimate, Relativity, Space, and, L. C. W. Bona- 

 cina, 171 



Reconstitution Processes in Shales, Slates and Phyllites, 

 The Trend of, A. Brammall, 605 



Red : Fatigue, The Effect of, on the W'hite Equation, Dr. 

 F. W. Edridge-Green, 509 ; Sea, Northern, The Rela- 

 tions of the, and its Associated Gulf-areas to the 

 " Rift " Theory, Dr. W. F. Hume, 574 



Rede Lecture, The. Sir Napier Shaw, 653 

 Refraction, Atmospheric, A. Mallock, 456 



Refractory Materials, Testing the Hardness of, at a High 



Temperature, E. Rengade and E. Desvignes, 735 

 Reid : Comet, 1921a, 153; Miss Vinter-Hansen. 217; M. 

 Ebell; W. F. Denning, 247; H. Godard ; P. Chofardet,. 

 J. Guillaume, 286, 311, 471 ; Reinmuth, 373 

 Relationship, and of Geographical Distribution, An Im- 

 portant Method of Studying Problems of, M. M. Met- 



Calf, 22"? 



Relativitatstheorie und Erkenntnis Apriori, H. Reichen- 

 bach, 583 



Relativity : and Gravitation. 742 ; and the Deviation of 

 Spectral Lines, Prof. H. J. Priestly, 43 ; and the 

 Velocity of Light, C. O. Bartrum ; J. H. Jeans, 42 ; 

 Sir Oliver Lodge, 73 ; C. O. Bartrum, 141 ; J. H. 

 Jeans, 169 ; Electrical Theory and, 133 ; Further Re- 

 marks on. Sir Oliver Lodge, 784 ; Gravitational, 

 Remarks on, S'lr Oliver Lodge, 814 ; in Science Im- 

 plies, What, Prof. H. Wildon Carr, 578 ; Simple, 

 Remarks on, and the Relative Velocity of Light, Sir 

 Oliver Lodge, 716 ; 748 : Solar Eclipse Results 

 and the Principle of, C. E. Stromeyer ; Sir 

 F. W. Dyson, 682 ; Space, and Ultimate Reality, 

 L. C. W. Bonacina, 171 ; The Development and 

 Present Position of the Theory of. Prof. Einstein, 504 ; 

 The Electron Theory and Gravitation, E. Cunningham. 

 Second edition, 742 ; The Reign of. Viscount Haldane. 

 578 : The Theory of. Prof. R. D. Carmichael. Second 

 edition, 264 : and the Relation between Geometry and 

 Physics, Prof. Einstein, i;o4 : The Development of the 

 Theory of. Prof. H. J. Priestley, 440 



Reparation Act : The, and Scientific Research, Prof. J. R. 

 Partington, 394; J. S. Dunkerly, 427; Hon. H. 

 Onslow, 457 ; and the Cost of German Publications, 

 Prof. J. Stanley Gardiner, 359 



Research : and National Progress, 97 ; in the United States, 

 The Development of, Dr. J. R. Angell, 122; Organisa- 



tion in, Prof. W. M. Wheeler, 180 ; The Safeguarding. 



of, 481 ; The Universities and, Prof. J. Joly, 760 

 Resinous Exudation from the Pine, The Acid Constituents- 



of the, G. Dupont, 319 

 Resonance : in Aspiration Turbines, The Phenomena of,. 



A. Foch, 607; Theory of Hearing, The, Dr. H. Har- 



tridge, 204 

 Reversibility of the Reaction CaCOs^COj + CaO, P. Joli- 



bois and Bouvier, 447 



REVIEWS AND OUR BOOKSHELF. 



Agriculture, Forestry, and Horticulture: 



Andrew (R. C), A Farmer's Handbook : A Manual for 

 Students and Beginners, 679 



Basic Slags : Their Production and Utilisation in Agricul- 

 ture, 7 



Brown (Prof. N. C), Forest Products : Their Manufac- 

 ture and Use, 326 



Chittenden (F. J.), The Garden Doctor : Plants in Healtlv 

 and Disease, 40 



Copeland (Prof. E. B.), The Coco-nut. Second edition,. 



391 

 Ise (Prof. J.), The United States Forest Policy, 320 

 Recknagel (Prof. A. B.), and Prof. J. Bentley, jun.,. 



Forest Management, 326 

 Stout (Mary), and Madeline Agar, A Book of Gardening: 



for the Sub-Tropics, 232 

 Wilson (J.), The Breeding and Feeding of Farm Stock,. 



678 

 Wood (Prof. T. B.), The Chemistry of Crop Production,^ 



lOI 



Woolsey, jr. (T. S.), with two chapters by W. B. Greeley,. 

 Studies in French Forestry, 548 



Anthropology and Archaeology : 



Basden (Rev. G. T.), Among the Ibos of Nigeria, 495 



Davies (Nina de Garis), and Dr. A. H. Gardiner, The 

 Tomb of Amenemhet ; The Tomb of Antefoker, Vizier 

 of'Sesostris L, and of his Wife, Senet, 70 



Fornander (A.), Fornander Collection of Hawaiian Anti- 

 quities and Folk-lore, with translations. Edited and 

 illustrated", with notes, by T. G. Thrum. Third series. 

 Part iii., 391 



Hadfield (Mrs. E.), Among the Natives of the Loyalty 

 Group, 495 



Hogarth (D. G.), Hittite Seals : with particular reference 

 to the Ashmolean Collection, 70 



Jenness (D.), and the late Rev. A. Ballantyne, The 

 Northern D'Entrecasteaux, in 



Petrie (Prof. W. M. Flinders), Tools and Weapons : Illus- 

 trated by the Egyptian Collection in University College, 

 'London, and 2,000 outlines from other sources, 230 



Biology : 



Batten (H. M.), Habits and Characters of British Wild 



Animals, 547 

 Bevis (J. F.), and H. J. Jeffrey, British Plants : Their 



Biologv and Ecology. Second edition, 71 

 Britton (Prof. N. L.), and Dr. C. F. Millspaugh, The 



Bahama Flora, 327 

 Britton (Dr. N. L.), and Dr. J. N. Rose, The Cactaceae. 



Vol. ii., 580 

 Clark (Dr. H. Lyman), The Echinoderm Fauna of Torres 



Strait, 712 

 Cook (Dr. M. T.), College Botany : Structure, 



Physiology, and Economics of Plants, 807 

 Coward (T. A.), The Birds of the British Isles and their 



Eggs. Second series, 40 

 Densmore (Prof. H. D.), General Botany for Universities 



and Colleges : Laboratory and Field Exercises for 



" General Botany," 69 

 Donald (C. H.), Companions : Feathered, Furred, and 



Scaled, 805 

 Ealand (C. A.), Insect Life, 806 



Errera, L^o, Recueil de I'lnstitut Botanique. Tome iv., 6 

 Evans (Dr. I. B. Pole), The Flowering Plants of South 



Africa. Vol. i.. No. i, 40 



