INDEX. 
Privileges and limitations of visual 
imagery, by Prof. T. H. Pear, 434, 469 
(J 1). 
Protoplasmic structure and function 
. . ., by Dr. G. H. A. Clowes, *429. 
Pseudo-Mongolian type in Central Africa, 
by Prof. C. G. Seligman, *421, 467 
(H 23). 
Pulling electrons from metals by intense 
electric fields, by Dr. R. J. Piersol, 359. 
Pupils for auxiliary classes, Selection of, 
by Dr. S. B. Sinclair, 459, 469 (L 14). 
Purposive Striving ..., by Prof. W. 
McDougall, 226. 
Pyronema confluens .. ., Growth and 
reproduction in, by Dr. W. Robinson, 
444, 
Quantitative estimation of reducing 
power of normal and cancer tissue, by 
Dr. C. Voegtlin, Dr. J. M. Johnson, and 
Miss H. A. Dyer, 429, 468 (I 20). 
Quantum theory of scattering of X-rays, 
by Prof. A. H. Compton, *363. 
Quebec, visit to, 470. 
Quirke (Prof. T. T.), Correlation of Gren- 
ville and Huronian rocks of S.E. 
Ontario, 390, 466 (C 218, e). 
Races of man, Suggested arrangement of, 
by Dr. A. C. Haddon, 417, 467 (H 1). 
Racial characteristics emerging from 
* America’s study of her immigrants, by 
Dr. Laughlin, *422. 
Racial mental differences, Discussion on, 
439. 
Radiant resistor furnace, by F, A. J. 
Fitzgerald, 376. 
Radiation from a star, Theory of outflow 
of, by Prof. A. 8. Eddington, 372. 
Radiation pressure and equilibrium of 
solar chromosphere, by E. A. Milne, 372 . 
Radiation, Secondary and tertiary, by 
Prof. W. Duane, 363. 
Railway transportation in Canada, by 
Sir H. Thornton, 412, 467 (G 2). 
Rainfallin relation to the wheatcrop . . ., 
_by R. A. Fisher, *463, 469 (M 12). 
Rainmaking, by Prof. W. J. Humphreys, 
368, 464 (A 31). 
Raman (Prof. C. V.), Scattering of 
light . . ., 369. 
Ramulina, . . ., by Sir W. Herdman, 404. 
Rank in Polynesia, by Miss M. Mead, 421. 
Recording instruments ..., by R. S. 
Whipple, *416, 467 (G 19). 
Red paint people of Maine, by W. K. 
Moorehead, 420. 
Reep (Dr. G. B.), Influence of salt and 
hydrogen ion concentration upon 
growth and structure of bacteria, 427. 
565 
Religious complexes of North American 
Indians, by Mrs. R. F. Benedict, 419. 
RENDLE (Dr. A. B.), Early botanical 
exploration in British North America, 
*448. 
Respiratory quotient .. 
E. P. Cathcart, 432. 
Respiratory variation of arterial blood 
pressure, by Prof, F. H. Scott, *427, 
468 (I 9). 
Reverie and industrial fatigue, by Dr. 
KE. Mayo, *442. 
Rerynoups (President J. B.), Agricultural 
education in Canada, 460. 
REYNOLDS (J. H.), . . . Permanent com- 
mittee on geographical names. . 
406, 466 (E 3). 
RuoavDEs (Guy E.), Composition in art of 
North-West Coast Indians, 420 
RicHarpson (L. F.), Measurements of 
up-gradient of temperature . . ., *365. 
Turbulence and temperature-gra- 
dient among trees, 364. 
RipeEau (Dr. E. K.), Chemical union in 
adsorption, *379. 
RisHBETH (O. H. T.), Geographical con- 
sequences of geology of Australia, 409. 
River-fisheries, Biological factors involved 
in destruction of, by pollution . . ., by 
Miss K. E. Carpenter, 403. 
Ropack (Dr. A. A.), . . . Graphic inter- 
ference, 442. 
Rosertson (Prof. A.), Drop of stress at 
yield point of ductile materials, 337. 
Effects of inaccuracy of axial load- 
ing, 332. 
Rospertson (Dr. G. Scott), . . . Rock 
phosphates on soils poor in phosphoric 
acid, 463. 
ROBERTSON (Sir R.), Chemistry and the 
State, 53. 
Rosryson (Dr. W.), . . . Growth and re- 
production in Pyronema confluens, 444. 
Rock phosphates on soils poor in phos- 
phoric acid ..., by Dr. G. Scott 
Robertson, 463. 
Roman road system ..., by Dr. T. 
Ashby, *418, 467 (H 7). 
Ross (Prof. H. J.), Bride of Hades, 419, 
467 (H 11). 
ROSENBERG (Prof. O.), Cytological basis 
for production of species by hybridisa- 
tion, 453. 
Roxsy (Prof. P. M.), Distribution of 
population in China, 409, 466 (E 19). 
Rural dwellings and communities of rural 
Scotland, by A. Stevens, 410. 
RusseLL (Prof. H. N.), Spectrum of 
titanium, *359. 
RussExu (Sir J.), Present-day problems in 
crop production, 256. 
Russexy (Prof. J. W.), . .. Recent ex- 
tinction of American mastodon, 385. 
5 AbyeucBrof: 
9 
