580 
Barker (W. H.), on geography teach- 
ing, 321. 
Barxkua (Prof. C. G.), X-ray absorption 
and J discontinuities, *424. 
Barnes (W.), Single-bucket excavator, 
467, 505 (G10). oa 
Barner (Dr. F. A.), Zoological biblio- 
graphy and publication, 319. 
Baytis (Dr. H. A.), . . . Host-range 
of parasitic nematodes, 453, 504 
(D 22). 
Bearrie (Prof. J. M.), Action of finely 
divided particles of slate, &c., on 
toxins, *479. 
Beeriman (A. E.), Road transport, 463, 
505 (G 4). , 
Beveripce {Sir W. H.), Population 
and unemployment, 138. 
BickerstetH (Dr. M. F.), 
grams, *483. 
Bio-radioactivity and humoral environ- 
ment, by Prof. H. Zwaardemaker, 
478. 
Buacxuock (Prof. B.), Tumbu fly.. .. 
453. 
Buackman (Dr. F. F.), Oxygen and 
respiration, *487. 
Buackman (Prof. V. H.), and Lzee 
(A. T.), Effect of electric currents on 
Psycho- 
growth of plants in pot cultures, 487,. 
507 (K 11). 
Lece (A. T.), and Grecory (Dr. 
F. G.), Effect of direct electric cur- 
rent. ..on... growth of coleop- 
tile of barley, 487, 507 (K 12). 
Blood in retina on colour equations, 
effect of, by Dr. F. W. Edridge- 
Green, 480, 506 (I 16). 
Bohr atom and periodic iaw. by Dr. 
N. V. Sidgwick, *432, 504 (B 6). 
Bour (Prof. N.), Correspondence prin- 
ciple, 428. 
Bonsrr (W.), Magic properties of the 
Finns . . ., 472, 506 (H 4). 
Boswett (Prof. P. G. H.), Geology of 
Liverpool district, *437. 
- - « Silurtan “rocks”... Den- 
bighshire moors, 441. 
Botany, Some aspects of the present 
position of, by A. G. Tansley, 240. 
Bowte (J. A.), British Coal Agreemeit 
of 1921, 462, 505 (F 9). 
BRaANCKER (Sir 8.), Air transport, 464. 
Brazil, high plateau of, by R. R. Walls, 
458, 505 (E 7). 
Breeze (Miss M. 8S. G.), Invasion of 
tissues of higher plants by protozoan 
parasites, 456. 
Brieruey (Dr. W. B.), on virus diseases 
of plants, 493. 
Brockwe tt (Prof. C. A. Bropre), Evo- 
lution of arithmetic .. ., 472. 
INDEX. 
Bronze Age implements, Report of com- 
mittee on distribution of, 412. 
Bronzes, Composition of early, by 
Prof. J. Sebelien, *476, 506 (H 24). 
Brooks (J.), and Ramsven (Prof. W.), 
Factors determining which of two 
liguids forms the droplets of an 
emulsion, *479. 
Brooxs (Dr. 8. C.), Electrolytic con- 
ductance of micro-organisms, *479, 
506: (I 12). 
Brown (8S. G.), the Frenophone, 427. 
Bruce (J. R.), and Ramspen (Prof. 
W.), lrreversible coagulation of 
albumin at free surfaces, *479, 505 
(itz). 
Brunt (Capt. D.), Energy of circula- 
tion of the atmosphere, 425. 
Bunter sandstones, middle, of Liver- 
pool district, by T. A. Jones, 440. 
504 (C 4). 
Burnett (Miss I.),... Repetitive 
work, 485. 
Burr (Dr. C.), mental differences 
between individuals, 215. 
on the delinquent child, 497. 
Butterflies, transparent undersurface 
of wings in certain, by Prof. E. B. 
Poulton, 447, 504 (D 2). 
Campin (Miss M. G.), Chromosomal 
survey of certain plant families .. .. 
489. 
Cannon (H. Grawam), Post-naupliar — 
development of an estherid crus: 
tacean, 453, 504 (D 25). 
Carbon dioxide accumulation on root 
elongation, effect of, by C. Hunter — 
and Miss E. M. Rich, 487. 
Carbon. dioxide and adrenaline. . ._ 
bronchi and pulmonary vessels, by — 
Prof. R. Magnus, 478. : 
CarrutHers, (J. N.), North Sea cur- — 
rents in relation to fisheries, 449. f 
Casson (H.), Prehistoric sites in Dar- — 
danelies and Bosporus, 475, ; 
Casson (S.), North Afgean coast in the 
Bronze Age, 475. > 
Catalytic actions in the system copper. — 
&e., by W. G. Palmer, 485, 5047 
(Baas 
Camicarr (Prof. E. P.), New type of 
pursuitmeter, *484. 
Cuapwick (H. C.), Exhibit of -. & 
slides of plankton organisms, 450. : 
Cuarwin (C. P.), New gasteropod 
fauna from the chalk, 447. 
Chromosomal survey of certain plant 
families ..., by Miss M. G 
Campin, 489. 
