XXX 
Title Index 
Nature, , 
August 11, 1923 

Shapley, 717 ; Projection of Aldebaran on the Moon, 
R. L. Waterfield, 822; Photographic Studies of 
Nebula, J. C. Duncan, 857; Variations in the 
Spectrum of @? Orionis, F. Henroteau, 892; Colours 
and Spectra of Double Stars, F. C. Leonard, 892; 
The Radial Velocities of 1013 Stars, W. S. Adams 
and A. H. Joy, 892 
Sun : 
Solar Prominence Activity, 27 ; Coming Solar Eclipses, 
60; Observations at Wallal of the Eclipse of 
September 1922, J. Hargreaves and G. S. Clark- 
Maxwell, 128; The Position of the Solar Apex, J. S. 
Paraskevopoulos, 159; The Eclipse of September 
1922 in Queensland, J. C. Russell, 441 ; Solar Eclipse 
Investigations, Prof. A. D. Ross, 510; The Corona 
of 1908 and Solar Prominences, J. Evershed, 785 
Miscellaneous : 
British Astronomical Association Handbook for 1923, 
27; Atmospheric Dispersion in Parallax Work, 
W. M. H. Greaves and C. Davidson, 27 ; The Drayson 
Paradox, A. H. Barley, 94; Calendar Reform, Rev. 
D. R. Fotheringham, 159; Astronomical Circulars, 
197; Periodic Motion in the Three-body Problem, 
Prof. Strémgren, 233; The Zodiacal Light, W. F. 
Denning, 338; Old Egyptian Water-clocks, 479; 
Greece adopts the Gregorian Calendar, 546; Astronomy 
in the United States, 546; The Astronomical Society 
of South Africa, 717 
Astronomy: and Geology, The Borderland of, Prof. A. 
S. Eddington, 18; General, H. Spencer Jones, 247; 
in the United States, 546; Outlines of, 247; The 
Interferometer in, Prof. A. S. Eddington, 572; The 
Réle of, in the Development of Science, Dr. M. A. 
Peres, 162 
Atheneum Club: Maj.-Gen. Sir Frederick B. Maurice, 
Dr. A. Scott and Prof. A. N. Whitehead elected 
members of the, 232; Dr. H. H. Dale, Rev. Prof. 
G. Milligan and Very Rev. Dean W. F. Norris elected 
members of the, 544; Prof. H. Lamb, Lord Meston, 
and G. Gilbert Scott elected members of the, 406 
Atlas, Orographical, Regional, Economic, edited by T. 
Franklin. Part 4: Africa, 494 
Atmosphere: A Heavier Constituent of the, A Critical 
Search for a, by means of the Mass-spectrograph, Dr. 
F. W. Aston, 689; Characteristics of the, up to 
200 km., as obtained from observations of Meteors, 
G. M. B. Dobson, 487; The Water in the, Dr. G. C. 
Simpson, Supplement (April 14), v.; Upper Layers 
of the, Constitution of the, L. Vegard, 831; Vertical 
Movements of the, I. I. Kassatkine, 787 
Atmospheric: Dispersion in Parallax Work, W. M. H. 
Greaves and C. Davidson, 27; Humidity in the 
United States, Prof. R. de C. Ward, 511 
Atmospherics: R. M. Deeley, 362; The Nature of, R. A. 
Watson Watt and E. V. Appleton, 622; The Study 
of, F. Baldet, 554; Radiotelegraphic, in relation to 
Meteorology, C. J. P. Cave and R. A. W. Watt, 34 
Atom? A Static or Dynamic, Dr. N. R. Campbell, 569 ; 
~ The Structure of the, Hon. B. Russell, 477; R. H. 
Fowler, 523 
Atomic: Form: with special reference to the Con- 
figuration of the Carbon Atom, E. E. Price, 733; 
Number 72, On the Missing Element of, Dr. D. Coster 
and Prof. G. Hevesy, 79; Dr. A. Scott, 195 ; Number 
72, On the Element of, Profs. G. Urbain and A. 
Dauvillier, 218 ; Radii, Constant, The Hypothesis of, 
R. W. G. Wyckoff, 555 
Atoms and Isotopes, The Evolution of, W. D. Verschoyle, 12 
Aucuba Leaves preserved in a Vacuum, The Vitality of, 
P. A. and P. Dangeard, 171 
Audition, The Mechanism of, F. W. Kranz, 291 
Aurora: and Allied Phenomena, Dr. C. Chree, 135; 
Borealis: of March 22-23, 1920, Photogrammetric 
Measurements of the, Prof. C. Stérmer, 171; The 
Spectrum of the, and the Upper Layers of the Atmo- 
sphere, L. Vegard, 587 
Aurore, Recent, W. B. Housman, 706 
Austral Rhynchonellacea of the ‘‘ Nigricans Series ’’ with 
a Description of the New Genus Tegulorhynchia, F. 
Chapman and I. Crespin, 311 
Australasian Biological Collecting Expedition, An, 272 
Australia: proposed Solar Observatory in, 857; The 
Natives of, S. H. Ray, 121; Western, University of, 
Government grant for the Permanent Buildings of 
the, 518 
Australian: Anthicide (Coleoptera), A. M. Lea, 136; 
Ethnological Collection, Guide to the, exhibited in 
the National Museum of Victoria, Sir Baldwin 
Spencer, Third edition, 121; National Research 
Council: publication of a Quarterly Journal of the, 
440; Sir David Orme Masson elected president of 
the ; work of the, 478; Skull, An Ancient, A. N. St. 
G. H. Burkitt and Prof. J. I. Hunter, 198; Tipulide, 
New or Little-known Species of, (Diptera), Pt. L., 
C. P. Alexander, 136; Trees, Chemical Characteristics 
of, H. G. Smith, 649 
Auto-oxidation and Anti-oxygenic Action, C. Moureu and 
C. Dufraisse, 519 
Aviation Problems, Recent Contributions to, Prof. G. H. 
Bryan, 886 
Ayrshire Bauxitic Clay, The, G. V. Wilson, 110 
Baade’s Comet, Dr. W. H. Steavenson, 27 
Baby: Clinic Statistics, Miss M. N. Karn and Prof. Karl 
Pearson, 547; Week, National, 890 
Babylonians, Ancient, A Biochemical Discovery of the, 
L. J. Harris, 326 
“* Baccy-juice,’’ The so-called, in the Waters of the Thames 
Oyster-beds, Dr. J. H. Orton, 773 
Bacillaria pavadoxa, Distribution of the Organ-Pipe 
Diatom, F. Chapman, 15 
Bacot, A. W., proposed memorial of the late, 749 
Bacteria and Travertine, J. Parry, 269 
Bacterial Count Work, A New Culture Medium for, 
H. G. Thornton, 411 
Bacterio-stasis, Selective, The Mechanism of, J. W. 
Churchman, 763 
Badger: The, Afield and Underground, H. M. Batten, 800 
Bakerian Lecture, The, G. I. Taylor and C, F. Elam, 309 
Bakhuis-Roozeboom medal, the, conferred on Prof. G. 
Tammann, 612 
Balfour, Sir Isaac Bayley, Prof. T. D. A. Cockerell, 150 
Balkan Embroidery Patterns, Miss Edith Durham, 786 
Ball Hardness and Scleroscope Hardness, H. O’Neill, 430 
Ballot, Buys, medal, awarded to Sir Napier Shaw, 91 
Balmer Series Lines of High Frequency, Photography of, 
Prof. R. Whiddington, 636 ‘ 
Baluchitherium osborni (? syn. Indricotherium turgaicum, 
Borrissyak), C. F. Cooper, 134 
Barometric Depression and Anaphylactic Shock, A. 
Lumiére and H. Couturier, 655 
Batavia, Royal Magnetical and Meteorological Observa- 
tory, retirement of Dr. W. van Bemmelen ; appoint- 
ment of Dr. Braak, 29 
Batrachians, The Inhibiting Action of the Internal 
Medium of, on the Fecundation and the Partheno- 
genetic Activation of their Eggs, A. Weber, 728 
Batteries with Fluorescent Liquid, A. Grumbach, 171 
Bauxite in Ayrshire, 110 
B Ceti, Increase of Brightness of, C. Flammarion, 451 
Bedde Group of Tribes of Northern Nigeria, The, F. W. H. 
Migeod, 170 
Bee-keeping, Pamphlet on, 509 
Beetles, More, J. H. Fabre. 
de Mattos, 285 
Belfast, Queen’s University : the bequest of H. Musgrave ; 
R. C. Johnson appointed lecturer in physics; S. P. 
Mercer appointed lecturer in agricultural botany and 
plant diseases, 380; resignation of Rev. Dr. T. 
Hamilton, 586 
Belgian Botany : a Record of War Time, Prof. J. Massart, 
Translated by A. Teixeira 
97 
Belgique, l’Observatoire Royal de, Annuaire de, 1924, 
52 
Baler grants to Universities in, 761 
Benzene: Chloride, Vapour of, The Ultra-violet Absorp- 
tion Spectrum of the, V. Henri, 762; Nucleus, 
Substitution in the, R. Fraser and J. E. Humphries, 
512; Structure of, Dr. M. L. Huggins, 444 
