588 

atmosphere. It is possible that the four lines not 
identified, including the green line (5578-4), may be 
due to nitrogen.—L. d’Azambuja: New measure- 
ments of the velocity of rotation of the filaments. 
Evaluation of the height of these objects above the 
solar chromosphere. The average velocity does not 
sensibly vary from one filament to another: it is 
independent of the shape, intensity, and extent of 
the filaments observed. There is a clear reduction 
of velocity toward the pole, the angular velocity 
being 14:45°-—1-90° sin*\, where \ is the heliographic 
latitude.—Louis Dunoyer: Induction spectra and 
spark spectra. Reclamation of priority as regards 
work by Léon and Eugéne Bloch, and a discussion 
of the nomenclature of spectra.—Pierre Lamare: 
Geological observations on the Yemen. The region 
of the Yemen (south-west angle of Arabia) presents 
remarkable geological and lithological analogies with 
the Somali and Abyssinian regions. The properties 
of the six main types of basalts are summarised.— 
C. E, Brazier : Magnetic measurements in Normandy. 
The magnetic elements (on January I, 1922) are 
given for 43 stations in the Departments of Eure 
and Seine-Inferieure——Mlle. Y. Dammann: The 
Kansou earthquake : determination of the epicentre. 
This earthquake took place on December 16, 1920, 
in the north China province of Kansou, and for the 
determination of the epicentre the seismological 
records from 24 observatories were utilised.— 
Mme. J. Samuel Lattés: Some numerical values 
characterising the radium rays responsible for the 
phenomenon of necrosis. 

Official Publications Received. 
Papers and Proceedings of the Royal Society of Tasmania for the Year 
1922. Pp, v+104+8 plates. (Hobart: Tasmanian Museum.) 10s. 
Reports of the Council and Auditors of the Zoological Society of London 
for the Year 1922, prepared for the Annnal General Meeting to be held on 
Monday, April 30, 1923. Pp. 55. (London.) 
Review of Agricultural Operations in India, 1921-22, 
(Calentta: Government Printing Office.) 1.4 rupees. 
The Science Reports of the Tohoku Imperial University, Sendai, Japan. 
Second Series (Geology), Vol. 6, No. 2: On some Tertiary Brachiopods 
from Japan. By Ichiro Hayasaka, Pp. 25+2 plates. (Tokyo and Sendai : 
Maruzen Co, Ltd.) 
_ Union of South Africa. Report of the Sonth African Museum for the 
Year ended 31st December 1922. Pp. ii+14. (Cap Town.) 
Report and Balance Sheet of the National Botanic Gardens of South 
Africa, Kirstenbosch, Newlands, Cape (and the Karroo Garden, Whitehill, 
near Matjesfontein), for the Year ending 31st December 1922. Pp. 23. 
(Kirstenbosch.) 
_ The Institution of Civil Engineers. Engineering Abstracts prepared 
from the Current Periodical Literature of Engineering and Applied 
Science, published outside the United Kingdom. New Series, No. 15, 
April. Edited by W. F. Spear. Pp. 196. (London.) 
Pp. vi+160. 

Diary of Societies. 
SATURDAY, Aprit 28. 
Roya Institution or Great Britarn, at 3.—Dr. L. L. B. Williams: The 
Physical and Physiological Foundations of Character (1). 
MONDAY, Apri 30. 
INSTITUTE OF ACTUARIES, at 5.—A. D. Besant: Notes on some Actuarial 
Aspects of the Local Government and other Officers’ Superannuation 
Act, 1922, and on a Method suitable for the Initial Valuation of a Small 
Fund of the ‘‘ Officer” Type. 
RoyaL CoLtece oF SurGeons or ENGLAND, at 5.—Prof. Shattock : 
Spina Bitida, ete. 
Roya Socirry or Arts, at 8.—S. S. Cook : Recent Improvements of the 
Steam Turbine (1). (Howard Lecture.) 


TUESDAY, May 1. 
Royat InstiTurion oF GREAT Brivarn, at 3.—Sir Arthur Keith: The 
Machinery of Human Evolution (4). Are our Bodies Changing? 
Roya Instiro110N or GREAT Briratry, at 5.—Annual Meeting. 
Royat CoLLece or Paysicrans or Lonpon, at 5.—Dr. H. H. Dale: The 
Activity of the Capillary Blood-yessels, and its Relation to Certain 
Forms of Toxemia (Oliver-Sharpey Lectures) (1). 
Royat Socrery or Mepicine (Orthopedics Section), at 5.30.—Annual 
General Meeting. 
RoyaL Paoroorapaic Sociery or Great Britain, at 7.—F. G. Tutton: 
Three-colour Carbro, 
NO. 2791, VOL. 111] 
NATURE 



[APRIL 28, 1923 

Roya ANTHROPOLOGICAL INSTITUTE, at 8.15.—V. G. Childe; The Neolithic 
Painted Pottery of South-Eastern Europe. 
ROnTGEN Soctery (at Institution of Electrical Engineers), at 8.15.— 
C. Thurstan Holland; X-rays and Diagnosis (Sixth Silvanus Thompson 
Memorial Lecture). 
WEDNESDAY, May 2. 
Grotoaicat Society or Lonpon, at 5.30. f. J. Joly: The Bearing of 
Some Recent Advances in Physical Science upon Geology. ; 
InsTITUTION OF BLECTRICAL ENGINEERS (Wireless Section), at 6.—Prof, 
C. L, Forteseue; The Design of Inductances for High-Frequency — 
Circuits. 2 
SocieTy OF PUBLIC ANALYSTS AND OTHER ANALYTICAL CHEMISTS (at 
Chemical Society), at 8.—W. Dickson: The Quantitative Determination 
of Hempand Wood in Papers containing these two Fibres.—H. Jephcott: 
The Estimation of Fat, lactose, and Moisture in Dried Milks.—A. L. 
Bacharach : The Estimation of Lactose by the Polarimetric and Gravi- 
metric Methods.—M. 8. Salamon: The Melting Point and Iodine Value 
of Refined Natural D. Camphor.—A. G. Francis: The Presence of 
Barium and Strontium in Natural Brines. 
Rovat Sociery oF Arts, at 8.—M. Drake: The Fourteenth-century 
Revolution in Glass Painting. 
ENTOMOLOGICAL Society or Lonpon, at 8. 
Insv1rvre OF METALs (at Institution of Mechanical Engineers), at 8.—Dr. 
W. Rosenhain: The Inner Structure of Alloys (Thirteenth Annual May 
Lecture). 
THURSDAY, May 3. 
Roya. InstrTUTION oF GREAT Britain, at 3.—Prof. J. T. MacGregor 
Morris : Modern Electric Lamps (2), Glowing Solids in Gases. 
Roya Socrery, at 4.30.—F. A. E. Crew: Studies in Intersexuality. 
I.-A Peculiar Type of Developmental Intersexuality in the Male of the 
Domesticated Mammals.—E. J. Morgan and J. H. Quastel: The Re- 
duction of Methylene Blue by Iron Compounds.—C. F, Cooper: The | 
Skull and Dentition of Paraceratherium bugtiense. A genus of aberrant 
Rhinoceroses from the Lower Miocene Deposits of Dera Bugti.—Dr. 
W. L. Balls: The Determiners of Cellulose Structure as seen in the 
Cell Walls of Cotton Hairs.—I. de B. Daly : The Influence of Mechanical 
Conditions of the Circulation on the Electrocardiogram. 
Linnean Socrety oF Lonpon, at 5.—Dr. W. T. Gordon: The us 
Pitys. —R. Gurney: The Crustacean Plankton of the English Lake 
District.—S. L. Ghose: A Systematic aud Ecological Account of Blue- 
green Alge from Lahore.—J. Groves: Notes on Indian Charophytes. 
—J. G. H. Frew: The Morphology of the Head and Month-parts of 
Chlorops teniopus Ege (Diptera). ie M. Alston: The Genital 
System of the Beetle Lyctws brunneus Steph, 
Baek CoLLEGE oF Parysicians oF Lonpon, at 5.—Dr. H. H. Dale: 
The Activity of the Capillary Blood-vessels, and its Relation to Certain 
Forms of Toxemia (Oliver-Sharpey Lectures) (2). 
CuemicaL Society, at §.—Prof. H. B. Baker: Change of Properties of 
Substances on Drying. Part II.—H. Bassett and P. Halton: The 
Sodium Salts of Phenolphthalein.—H. Bassett and R. G. Durrant: The 
Action of Thiosulphates on Cuprie Salts.—R. G. W. Norrish and Dr. 
E. K. Rideal: The Conditions of Reaction of Hydrogen with Sulphur. 
Part II. The Catalytic Effect of Oxygen. Part ILI. On the Mechanism 
of the Reaction of Hydrogen with Sulphur and its Catalysis by Oxygen.— 
Prof. T. M. Lowry: Studies on Electrovalency. Part Il. Co-ordinated 
Hydrogen.—H. Hunter: Investigations on the Dependence of Rotatory 
Power on Chemical Constitution. Part XX. The Rational Study 
of Optical Properties: Refraction a Constitutive Property. . 
Royat Socrery or Meprcine (Obstetrics and Gynecology Section) 
(Annual General Meeting), at 8.—L. P. Pugh: Investigation into 
Ovarian Disease in Cows.—Dr. A. Donald: The Clinical Aspects of 
Adenomyomata of the Female Pelvic Organs. 
FRIDAY, May 4. 
Roya AstronomicaL Soctety (Geophysical Discussion), at 5.—'The 
Volatilisation of Meteors, in relation to the Density and Temperature of 
the Air at 60 km. Chairman, Prof. A. 8. Eddington. Opener, Prof. 
F. A. Lindemann; other speakers, Major G. M. Dobson, Sir Napier 
Shaw, and F, J. Whipple. 
InstrtuTION o¥ CrviL Pecoant at 6.—Sir Richard T. Glazebrook ; The 
Interdependence of Abstract Science and Hngineering (Twenty-ninth 
James Forrest Lecture). 
JuNtor INSTITUTION OF ENGINEERS, at 7.30.—S. A. Stigant: A.C. Neutral { 
Point Earthing. 
RoyaL InsTiTuTION oF GREAT BRITAIN, at 9.—Prof. F. Soddy: The « 
Origins of the Conception of Isotopes. ’ 
SATURDAY, May 5. f 
Royat Institution or Great Britain, at 3.—Dr. L. L. B. Williams: 
The Physical and Physiological Foundations of Character (2). y 
i 
PUBLIC LECTURES. a 
MONDAY, Apri 30. " 
Kinc's CoLLecE For WomEN (Household and Social Science Department), ie 
at 4.30.—Prof, V. H. Mottram : Nutrition. (Succeeding LecturesonMay 
2, 7, 9, 14, 16, 23, and 28.) F) 
TUESDAY, May 1. 
Kino's Coutece, at 5.30.—Prof. A. P, Newton: Africa and Historical 
Research. 
THURSDAY, May 3. 5 
Sr. Mary's Hospirat (Institute of Pathology and Research), at 4.30.— 
Prof, W. Bulloch: Spallanzani’s Researches on Respiration, 
FRIDAY, May 4. a 
University CoLiece, at 5.—W. Macnab: Some Scientific Principles of ' 
Chemical Industry. (Succeeding Lectures on May 11 and 18.) 
