614 
Ceratostomella pluriannulata, hetero- 
thallism, by Dr. M. J. F. Gregor. 483, 
571. 
CHAPMAN, Prof. 8., Magnetic storms and 
ionisation of upper atmosphere, 356*. 
Atmospheric absorption of solar 
radiations, 358. 
Cuaunpy, T. W., Partition-generating 
functions, 343, 566. 
Chemical engineering problems, by Prof. 
W. A. Bone, 366*, 567. 
Childhood, psychology, by Prof. C. W. 
Valentine, 466. 
CurystaL, Dr. R. N., Pine shoot moth, 
498, 571. 
Wood wasp, Sirex, 490*. 
Cuurcu, Maj. A. G., Central institute for 
Imperial education, 502*. 
Creriant, Dr., Origin of Bantu, 457*, 569. 
CiarKkE, Prof. F., Central institute for 
Imperial education, 500, 577. 
Classification with reference to phylogeny 
and convergence, discussion by Dr. 
C. T. Regan, Dr. F. A. Bather, Dr. 
W. D. Lang, Dr. J. Stephenson, Dr. H. 
Scott, 398. 
Clinics and child guidance, symposium : 
Dr. G. A. Auden, Dr. W. Moodie, Dr. 
A. Macrae, Dr. C. W. Kimmins, Dr. 
C. L. C. Burns, Dr. R. G. Gordon, D. T. 
John, Dr. E. Miller, Dr. J. R. Rees, 
504, 571. 
Clouds, stratified, by Sir G. Walker, 351, 
567. 
Coal, chemical constitution, by Prof. 
W. A. Bone, 366*, 567. 
Couen, Sir R. W., Rationalisation of 
distribution, 426*, 568. 
Coker, Prof. E. G., Force fits and 
shrinkage fits, 439. 
Collaboration of workpeople in _ pro- 
duction, by H. Dubreuil, 422, 568. 
Cottins, Dr. M., Immediate colour- 
memory, 467. 
Colour-memory, by Dr. M. Collins, 467. 
Colour vision, induction in, by Prof. F. 
Allen, 476. 
Combustion in electrical discharges, by 
Prof. W. A. Bone, 366*, 567. 
Commutation, spark-neglecting, by Prof. 
J. Hartmann, 439, 569. 
Conception control, by Dr. M. Stopes, 
458, 570. 
Conceptual thinking, by A. W. Wolters, 
471. 
Conductivity and frequency relation- 
ship in different solvents, by Prof. P. 
Debye, 358*, 567. 
Conifer morphology, by Prof. J. Doyle, 
480, 570. 
Conjugation in mougestia, by Prof. F. E. 
Llovd, 481. 
INDEX. 
Coox, Prof. G., Upper and lower yield 
point in steel exposed to non-uniform 
stress, 440*, 568. 
CorBETT, J. 8., Railways as consumers of 
timber, 498, 571. 
Corbicula fluminalis in west of England, 
by Dr. J. W. Jackson and Dr. A. 
Bulleid, 379. 
CornisH, Dr. V., Effect of urban ex- 
pansion on flora and fauna, 538. 
— National park of Northumberland, 
405, 568. 
Cotton, by Sir J. Currie, 514*, 572. 
Cotton industry and rationalisation, by 
J. Morris, 416, 568. 
Cotton production, by Dr. W. L. Balls, 
514*, 577. 
Council, Report 1930-31, |x. 
Coxeter, H. 8. M., Uniform polytope in 
four dimensions, 340, 566. 
Crastren, J. A., Utility of trade baro- 
meters, 427, 568. 
Crang, M. B., Pomology and genetics, 
521. 
Creep, Dr. R. 8., Physiological basis of 
sensation, 458*. 
Crete, report on archeological and ethno- 
logical researches in, 275. 
Crew, Prof. F. A. E., Breeding, 517. 
— Genetic backgrounds of mental 
defect, 472, 570. 
Population, 397*, 567. 
Crops, food, by Dr. E. 8. Beaven, Prof. 
R. G. Stapledon, Dr. E. M. Crowther, 
Dr. D. J. Hissink, 509, 572. 
Crops, industrial, by F. D. Ascoli, Dr. 
B. J. Eaton, Sir J. Currie, Dr. W. L. 
Balls, 513, 571-2. 
Cross-section of gas molecules with 
respect to very slow electrons, by Prof. 
H. L. Brose, 327, 566. 
CrowtHer, Dr. C., Nutrition and pig, 
518, 572. 
CrowtTHER, Dr. E. M., Improvements in 
food crops, 512. 
Culbin sands, by J. F. Annand, 497, 571. 
Cutis, Prof. C. G., Genesis of ores, 380. 
Cutuis, Prof. W., Broadcasting in adult 
education, 508. 
CurrtE, Sir J., Cotton, 514*, 572. 
Curved pipe stream line flow, by Prof. 
J. R. Partington and N. L. Anfilogoff, 
348. 
Cytology of bacterial plant parasites, by 
R. H. Stoughton, 484, 577. 
Dahlia, genetics, by W. J. C. Lawrence, 
522. 
Daz, Dr. H. H., Biological nature of 
viruses, 172, 460*. 
Datrymp_e-Hay, H. H., London tunnell- 
ing problems, 437, 568. 
— 
ee 
