HEILBRONN, Dr. Hans, Waring’s | 
problem, 356, 495. 
HENDERSON, Sir J. 
terms, 421*, 497. 
Henry, Dr. T. A., Antimalarial 
drugs of natural origin, 364, 495. 
B., Electrical 
HERRING, Prof. P. T., Pituitary body | 
and diencephalon, 143, 433*. 
Herring and plankton, by Prof. A. C. 
Hardy, 386. 
Herring fishery and plankton of | 
North Sea, by R. S. Wimpenny, 
387. 
Herring problem, symposium by, 
E. Ford, Dr. W. C. Hodgson, 
Prof. A. C. Hardy, R. S. Wim- 
penny, 386. 
Herring, vertebral variations and the 
race problem, by E. Ford, 386*. 
Herrings in North Sea, recent addi- 
tions to knowledge, by Dr. C. W. 
Hodgson, 386, 496. 
Hertz, Dr. G., Separation of iso- 
topes by diffusion, 347. 
HIck.ine, Prof. H. G. A., Geological 
aspects of recent research on coal, 
47, 369*. 
HIGINBOTHAM, 
349*, 494. 
Hitey, W. E., Woodland cultivation 
and marketing of woodland pro- 
ducts, 451. 
Hirst, Dr. E. L., Optical activity 
and structure of sugars, 358. 
Hopcson, R. A., Occupational 
changes and population move- 
ments in S.E. England, 407*. 
Hopeson, Dr. W. C., Recent addi- 
tions to knowledge of herrings in 
the North Sea, 386, 496. 
Ho.pen, Prof. H. S., on Anatomy 
of timber-producing trees, 344. 
Hore, Miss E. M., Industries of 
Norwich, 397. 
Houianp, J. L., Land Utilisation 
Survey of Northamptonshire, 480. 
Hottick, F. 8S. J., Flight of insects, 
395. 
Horne, Dr. A. S., Resistance of 
apple fruit to fungal invasion, 447. 
Howarp, A. L., British-grown hard- 
wood trees, 456, 499. 
Howarp, H. J., Collection of My- 
cetozoa, 396*. 
Zoology of Norfolk, Appdx. 36. 
Hi; 
Lubrication, 
INDEX 
129 
Hucues, Dr. A. H., Chemical re- 
actions in unimolecular films, 361. 
Horre.t, H. E., Collection of fresh- 
water Polyzoa, 396*. 
Horst, Dr. C. C., Species problem, 
392. 
Huxtey, Prof. J. S., on Biological 
measurements, 322. ° 
Private life of the gannets, 393*. 
Imagery, mental, and style of 
writing, by Prof. T. H. Peat, 435, 
499. 
Industries of Norwich, by Miss E. 
M. Hole, 397. 
Industries of Norwich and district, 
by H. P. Gowen, Appdx. 89. 
Industry, causes of localisation in 
Norwich, by P. A. Forrester, 410, 
496. 
Inland Water Survey, report on, 324, 
42T Fr. 
Insects, tlight of, by F. S. Hollick, 
395. 
Insects, migration of, by Dr. C. B. 
Williams, 395*. 
Insulating materials, dielectric pro- 
perties, by Prof. E. W. Marchant 
and B. J. O. Kane, 415*, 497, 498. 
Interests, measurement of, by Dr. 
R. B. Cattell, 442. 
International trade, monetary pro- 
blems, by J. C. Gilbert, 407, 497. 
Invertebrates, brackish water, os- 
motic regulation in, by L. C. 
Beadle, 386. 
Inverted factor technique, applica- 
tions, by Dr. W. Stephenson, 
441*. 
Isaac, Dr. W. E., Marine alge on 
coasts of South Africa, 455, 499. 
Isotopes, separation by diffusion, by 
Dr. G. Hertz, 347. 
Isotopes, The story of, by Dr. F. W. 
Aston, 23, 347*. 
Jacks, M. L., Physical education, 
464. 
Jackson, K., Language of Roman 
Britain, 425. 
James, Lt.-Col. S. P., Chemo- 
therapy of malaria, introduction 
to discussion, 362. 
