
1o4 NATURE 
[JANUARY 20, 1923 

hence it appears probable that in the Golgi apparatus 
ferments indispensable to the nutrition and develop- 
ment of the cell are produced.—H. Colin and H. 
Belval: The genesis of the carbohydrates in wheat. 
The presence of levulosanes in the stem.—C. Champy : 
The fluctuating appearance of the male sexual 
characters in the female Tyiton alpestris——Edouard 
Chatton and André Levoff: The evolution of the 
infusoria of the lamellibranchs. Relations between 
the Sphenophryide and the Hypocomide. 

Official Publications Received. 
_ Bulletin of the Imperial Earthquake Investigation Committee. Vol. S, 
No. 6: The Sakura-jima Eruptions and Earthquakes, VI. By F. Omori. 
Pp. 465-525+plates 88-107. (Tokyo.) 
Bulletin of the Geological Institution of the University of Upsala. Vol. 
18. Edited by Hj. Sjogren. Pp. xxvii+269+6 plates. (Uppsala: 
Almquist and Wiksells Boktryckeri-Aktiebolag.) 
Journal of the College of Agriculture, Hokkaido Imperial University, 
Sapporo, Japan. Vol. 11, Part 2: Vlora of the Island of Paramushir. By 
Yushun Kudo. Pp. 23-183, (Sapporo.) 
The Work of the Chemical Examiner's Department in the Punjab. By 
poe J. A. Black. Pp. 28. (Lahore: Civil and Military Gazette 
Tess. 
The Marine Biological Station at Port Erin: Being the Thirty-Sixth 
Annual Report of the former Liverpool Marine Biology Committee, now 
the Oceanography Department of the University of Liverpool. Drawn up 
by Prof. Jas. Johnstone. Pp. 52. (Liverpool.) 
Meteorology in Mysore for 1921: Being the Results of Observations at 
Bangalore, Mysore, Hassan and Chitaldrug. ‘'wenty-ninth Annual 
Report. By N. Venkatesa Iyengar. Pp. iii+15. (Bangalore: Govern- 
ment Press.) 
Mysore Government: Meteorological Department. Report on Rainfall 
Registration in Mysore for 1921. By N, Venkatesa Iyengar. Pp. xvii+35. 
(Bangalore ; Government Press.) 

Diary of Societies. 
SATURDAY, Janvary 20. 
British Myco.ocicat Society (in Botany Department, University 
; College), at 11 a.m.—Dr. W. Brown and Dr. A. 8. Horne: Fusarium.—4J. 
Ramsbottom: Berkeley and Broome.—Miss W. Ridler: The Fungus 
present in Lunularia cruciata.—Dr. H. Wormald: Crown-Gall in 
Nursery Stock, 
Roya. InsTiTuTION oF GREAT Britatn, at 3.—Sir Walford Davies :. Speech 
Rhythm in Vocal Music (1), 
MONDAY, January 22, 
RoyaL GeEooRAPHICAL Society (at’ Lowther Lodge), at 5.—P. Lake: 
Wegener's Hypothesis of Continental Drift. 
INSTITUTION OF ELEcTRICAL ENGINEERS (Informal Meeting), at 7.—A. G. 
Warren and others: Discussion on Insulators and Insulating Materials. 
InsTiTuTION OF MecHANICAL ENGINEERS (Graduates’ Section), at 7.— 
Informal Discussion on The Value of College Training to Engineers. 
Roya. Iystirute or British ArcuitTects, at 8.—R, Koott and W. E. 
Riley : The London County Hall. 
Roya Society or Mepicine (Odontology Section), at 8.—Sir William 
Willcox and others: Discussion on Dental Sepsis as an Etiological 
Factor in Disease of other Organs. 
TUESDAY, January 23. 
Royat InsTITUTION OF GREAT Brirary, at 3.—Prof. F. G. Donnan: 
Semi-Permeable Membranes and Colloid Chemistry (2). Relation to 
Probleins of Colloid Chemistry and Biology. 
INSTITUTION OF CIVIL ENGINEERS, at 6, 
INSTITUTE OF Marine Engineers, Inc., at 6.30.—Film illustrating 
Industrial Works,—Messrs. Beardmore, Ltd. 
RoyaL Prorocrapmic Sociery oF Great Britain, at 7.—F. C. Tilney: 
Address. 
Roya ANTIROPOLOGICAT, [NstITUTE (Anniversary Meeting), at 8.15. 
WEDNESDAY, January 24. 
GEOLOGICAL Society or Lonpon, at 5.30.—Rey. C. Overy: The Glacial 
Succession in the Thames Catchment-Basin.—Dr. 8S, H. Haughton : 
Reptilian Remains from the Karroo Beds of East Africa. 
Women’s ENGINEERING Society (at 26 George Street, Hanover Square), 
at 6.15.—Miss V. Holmes: Mechanical Injection of Fuel as applied to 
Diesel Engines (to be followed by a Discussion). 
Roya Microscopicat Socrery (Section dealing with the Industrial 
Applications of the Microscope), at 7.—Inaugural Meeting.—Prof. F. J. 
Cheshire: Opening Address.—Dr. F. J, Brislee: Training in Practical 
Microscopy ani the Necessity of providing Facilities for more Definite 
Instruction.—Dr. J. S. Owens: Atmospheric Pollution.—Demonstra- 
tions.—Exhibits. 
NOY2799; VOL.1I | 

Royat Society or Arts, at 8.—Sir William Henry Bragg: The New 
Methods of Crystal Analysis, and their Bearing ou Pure and Applied 
Science (‘ Trueman Wood” Lecture). e 
British PsycHotoaicat Society (Medical Section) (at Royal Society of 
Medicine, 1 Wimpole Street), at 8.30.—Dr. W. Brown; Autosuggestion 
and Transference. 
_ 
THURSDAY, January 25. 
Royau Society, at 4.30.—Probable Papers.—Prof. A. V. Hill: The 
Potential Difference occurring in a Donnan Equilibrium and the 
Theory of Co'loidal Behaviour.— Dr. E. F. Armstrong and T. P. 
Hilditch: A Study of Catalytic Actions at Solid Surfaces. X. The | 
Interaction of Carbon Monoxide and Hydrogen as conditioned by 
Nickel at relatively low Temperatures. A Practical Synthesis of 
Methane.—Dr. J. Holker: The Periodic Opacity of certain Colloids 
in progressively increasing Concentrations of Electrolytes.—E. K. 
Rideal and R. G. W. Norrish: The Photochemistry of Potassium 
Permanganate. Part I. The Application of the Potentiometer to the 
Study of Photochemical Change. Part II. On the Energetics of the 
Photo-decomposition of Potassium Permanganate.—B. A. Fisher: Some 
Moisture Relations of Colloids. I. A Comparative Study of the Rates 
of Evaporation of Water from Wool, Sand, and Clay.—R. Whytlaw-Gray, 
J. B, Speakman, and J. H, P. Campbell: Smokes—A Study of their 
Behaviour and a Method of determining the Number of Particles they 
contain.—R. Whytlaw-Gray and J. B. Speakman: A Method of deter- 
mining the Size of the Particles in Smokes. Part Il.—R. C. Ray: The 
Effect of Long Grinding on Quartz (Silver Sand). 
Opticat Socrety (at Imperial College of Science and Technology), at 7.30.— 
W. Day: The Birth of Cinematography and its Antecedents. 
InstituTION oF STRUCTURAL ENGINEERS (at 296 Vauxhall Bridge Road), 
at 7.30.—W. J. H. Leverton: The Relations between the Architect and 
the Engineer. 
Camera Ciup, at 8.15.—W. Wrench: Our Old Village Churches and 
their Story. 
Royat Society or Mepicine (Urology ‘Section), at §.30.—Clinical and 
Pathological Meeting. 
FRIDAY, JANuARY 26. 
ASSOCIATION oF Economic Brotocists (in Botanical Lecture Theatre, 
Imperial College of Science and Technology), at 2.30.—Prof, R. T. 
» Leiper: The Study of Helminthology. . 
Royat Society oF Mepicrne (Study of Disease in Children Section), at 5. 
—Special Clinical Meeting. 
PaysicaL Society or Lonpon (at Imperial College of Science and 
Technology), at 5.—J. J. Manley: A Further Improvement in the 
Sprengel Pump.—-Dr. C. Chree: A Supposed Relationship between 
Sunspot Frequency and the Potential-Gradient of Atmospheric Elec- 
tricity.—Dr. D. Owen: Null Methods of Measurement of Power-Factor 
and Effective Resistance in Alternate-Current Circuits by the Quadrant 
Electrometer. 
Junior INSTITUTION OF ENGINEERS, at 7.30.—G. F. Shotter: K.V.A. and 
its Measurement. 
Royat Society or Meprcrns, at 8.30.—Special Meeting to commemorate 
the Centenary of the Death of Edward Jenner.—Sir W, Hale-White : 
Jenner and his Work, 
Roya Institution or Great Britain, at 9.—Sir Almroth Wright: The 
Machinery of Anti-Bacterial Defence. 
SATURDAY, Janvary 27. 
Roya. InstTrTvuTION oF GREAT BriTaty, at 3.—Sir Walford Davies : Speech 
Rhythm in Vocal Music (2). 
PUBLIC LECTURES. 
MONDAY, January 22. 
ImPERIAL INstiTUTE, at 3.—Miss Edith Browne: West Africa and Empire 
Production. (Succeeding Lecture on January 29.) 
TUESDAY, January 23. 
IMPERIAL Institute, at 3.—Col. M. C. Nangle: The Empire in the Far 
East. (Succeeding Lectures on January 24, 30, 31, February;6, 7, 13, 
14, 20, 21, 27, 28, March 6, 7, 13, 14, 20, 21, 27, and 28.) 
Socrotocicat Socrery (at 65 Belgrave Road), at 4.45.—Dr. C. W. Saleeby : 
Sunlight and City Life. 
Krno’s Conece, at 5.30.—Miss Hilda D. Oakley: The Enigma of Socrates. 
« (Succeeding Lectures on January 30 and February 6 and 13.) 
GresHam CoLiece, at 6.—Sir Robert Armstrong-Jones: Physic. (Sue- 
ceeding Lectures on January 24, 25, and 26. 
WEDNESDAY, January 24. 
Krno's Cotece, at 5.30.—Dr. A. N. Whitehead: The Quest of Science 
To-day, and as exemplified in its History. 
FRIDAY, January 26. 
METEOROLOGICAL OrFice (South Kensington), at 3.—Sir Napier Shaw: 
Forecasting Weather. (Succeeding.Lectures on February 2, 9, 16, 23, and 
March 2, 9, 16, 23.) 
University Couuece, at 5.—Dr. G. Anrep: The Physiology of the Cortex 
as investigated by the Method of Conditioned Reflexes. (Succeeding 
Lectures on February 2, 9, 16, 23, and March 2, 9, and 16.) 
SATURDAY, January 27. 
Horniman Museum (Forest Hill), at 3.30. Capt. W. H. Date: Wireless 
Telephony and Broadcasting. 
a a 
