INDEX. 



557 



Relativity Contraction in a rotating 



shaft . . ., by Dr. F. E. Hackett, 412. 



Rennib (Dr. J.), Acarine disease in hive 



bees, 425. ^4:65 (D 22). 

 Rescue apparatus for use in mines, by 



Prof. H. Briggs, 437, 1*66 (G23). 

 Results with 72-in. reflector in British 



Columbia, by Sir F. W. Dyson, *410. 

 Retinal rivalry for test of colour fatigue, 



use of, by J. G. Taylor, 450. 

 Rew (Sir H.), Agricultural statistics, 



*4.59, 1467 (M 15). 

 Reynolds (Prof. S. H.). on geological 



photographs, 251. 

 Rhynie chert bed, by Prof. W. M. Lang, 



419. 

 Richardson (Prof. O. W.), Address to 



Section A, 25. 

 Rickets in pigs, by Dr. W. E. Elliott and 



A. Crichton, 459, 1467 (M18). 

 RiDEAL (Dr. E. K.), on structure of 



molecules, 472. 

 Ridgeway (Sir W.), Totemism, 441, 



t466 (H 7). 

 Ritchie (Dr. J.), Giant squids . . ., 423. 

 Ritchie (Dr. W.), Larvae of genus 



Rhagium F. and their economic im- 

 portance, 451, 1466 (K3). 

 Rivers (Dr. W. H. R.), Instinct of 



acquisition, *449, t466 (J 13). 



Melanesian land-tenure, *442. 



Robinson (Prof. R.), Genesis of plant 



pigments . . ., 417. 

 RoscoE (Rev. J.), Death ceremonies 



. . . among tribes ... of Uganda, 443, 



t466 (H 14). 

 Mackie ethnological expedition to 



Uganda, 444, 1466 (H 17). 

 Ross (Miss E. L. G.), Vocational fitness 



among mental defectives, 450. 

 Russell (Dr. E. J.), *457, t467 (M 1). 



Salter (Carle), The drought in England, 



1921, *411, t464(A18). 

 Sampson (Prof. R. A.), Microchrono- 



graph, 415. 

 Sapyga 5-punctata, by P. Balfour 



Browne, 425. 

 Saunders (Miss E. R.), . . . Dicotyledon 



shoot, 453, t466. (K 12). 

 Science and citizenship, discussion on, 



497. 

 Science and crop production, by Dr. E. 



J. Russell, *457, t467 (Ml). 

 Science and Ethics, by Dr. E. H. Oriffitfis, 



479. 

 Scots pine, mechanical properties of, 



by Prof. A. R. Home, 434, t465 (G2). 

 Scott (Dr. D. H.), Address to Section K, 



170. 

 Scott (Prof. W. R.), on credit, currency, 



dkc, 268. 



ScoTT-TaQoart (J.), Negative resistance 

 devices for use in wireless telegraphy, 

 436, t465 (G 14). 

 Scottish folk-lore, by D. A. Mackenzie, 



445. 

 Scottish people, discussion on origin of, 



439. 

 Sea, Internal movements ia the, by Dr. 



H. Pettersson, 411. 

 Seaplanes, by A. J. Miley, *435. 

 Scistnological investigations. Report of 



Committee on, 206. 

 Sense of humour in school children, by 

 Dr. C. W. Kimniins, 449, t466 (.J 15)". 

 Sewage gas for power purposes, by J. D. 



Watson, *437, t466 (G 20). 

 Sex and growth features in racial 

 analysis, by Miss R. M. Fleming, 444. 

 Sex differences in tests of constructive 



ability, by Miss M. McFarlane, 447. 

 Sex-reversal in frogs . . ., by Dr. F. A. E. 



Crew, 420, t465 (D 3). 

 Shaw (J. J.), on seismological investi' 



gations, 206. 

 Shaw (Lady), on training in citizenship, 



361. 

 Shaxby (Dr. J. H.), Testing of colour 



discrimination, *447. 

 Sheppard (T.), List of papers, 1920, on 

 zoology, botany, and prehistoric archao- 

 logy of British Isles, 499. 

 Shetlands, Geophysical observatory in 



the, by C. Mitchell, *409. 

 Sitones, genus . . ., by Miss D. J. Jackson, 



462. 

 Size and form, discussion on, *453. 

 Smith (Dr. S. P.), Large electric units, 



435, t465 (G 13). 

 Smith (Dr. W. G.), Grassland analysis. . ., 

 *457. 



and Dr. A. Lauder, Hill farms 



in the Lothians, *457. 

 Smithells (Prof. A.), on structure of 



molecules, 470. 

 Smoke impurities in air of Manchester, 



by W. Thomson, *418. 

 Social progress and psychological under- 

 standing, by J. C. Flugel, *449. 

 Soil protozoa, by D. Ward Cutler, 422, 



t465 (D 10). 

 Soil survey work in west of Scotland, by 



M. M. Monie, *457. 

 Somatic nucleus in development, b}' Prof. 



R. C. McLean, 453. 

 South African bush, demonstration of, 



by Prof. 1). and Mrs. Thoday, •452. 

 Southwell (R. V.), Problems relating to 

 design of high-speed discs, 341. 



and Barbara S. Gouqh, Stability 



of a rotating shaft, subjected simul- 

 taneously to end thrust and twist, 345. 

 Spectra of hydrogen from long vacuum 

 tubes, by "Prof. R. W. Wood. 408. 



