290 
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Annuaire Général de Madagascar et Dépendances, 
1914. Pp. x+745. (Tananarive.) 
X-Rays: an Introduction to the Study of Réntgen 
Rays: By Dr. G. W.-C. Kaye. Pp. x-+252, °(Lon= 
don: Longmans and Co.) 5s. net. 
I Minerali. By Prof. E. Artini. Pp. xv+ 422+ 40 
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Beitrage zur Kenntnis der Land- und Sitisswasser- 
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Beitrage zur Kenntnis der Meeresfauna Westafrikas. 
Edited by W. Michaelsen. Lief 1. Pp. 84+2 Plates. 
(Hamburg: L. Friederichsen and Co.) 6 marks. 
Lectures Introductory to the Theory of Functions of 
Two Complex Variables. By Prof. A. R. Forsyth. 
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Kinetische Stereochemie der  Kohlenstoffverbin- 
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Canada. Department of Mines. Memoir No. 18 E. 
Bathurst District, New Brunswick. By G. A. Young. 
Pp. 96+9+Maps. Memoir No. 26. Geology and 
Mineral Deposits of the Tulaween. District, B.C. By 
C. Camsell. Pp. vii:+188+10+maps. (Ottawa.) 
Photography in Colours. By Dr. G. L. Johnson. 
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DIARY OF SOCIETIES. 
THURSDAY, May 14. 
Rova Society, at 4.30.—The Various Inclinations of the Electrical Axis 
cf the Human Heart. Ia,: The Normal Heart. Effects of Respiration : 
Dr. A. D. Waller.— Fossil Plants showing Structure from the Base of the 
Waverley Shale of Kentucky: Dr. D. H. Scott and Prof. E. C. Jeffrey.— 
The Controlling Influence of Carbon Dioxide in the Maturation, 
Dormancy, and Germination of Seeds. IT.: F. Kidd.—The Cultivation 
of Human Tumour Tissue 2% vito: D. Thomson and J. G. Thomson.— 
The Nutri ive Conditions Determining the Growth of Certain Freshwater 
and Soil Protista: H. G. Thornton and G. Smith. 
Rova InsvTiTuTion, at 3.—Identity of Laws: in General: and Biological 
Chemistry : Prof. Svante Arrhenius. 
CONCRETE INSTITUTE, at 7.30.—Sand and Coarse Material and Propor- 
tioning Concrete: J. A. Davenport and Prof. S. W. Perrott. 
Society oF Dyers anp Co.ourists, at 8.—Notes on the Chemistry of 
Starch and its Transformations: W. A Davis.—The Analysis of Malt 
Fxtracts : W. P. Dreaper.—Temperature and Concentration as Affecting 
Hydration and Soda Absorption during the Process of Formation of 
Cellulose Mouofils: Clayton Beadle and H. P. Stevens. 
FRIDAY, May 15s. 
Rovar InstiTuTION, at 9.—Plant Animals: A Study in Symbiosis : 
F. Keeble. 
Prof. 
SATURDAY, May 16. 
RovAL INSTITUTION, at 3.—Bird Migration: Prof. C. J. Patten. 
UONDAY, May 18. 
RoyAL GEOGRAPHICAL SOCIETY, at 3.—Anniversary Meeting. 
Junior InstiruTION OF ENGINEERS, at 8.—-Static Transformers, the 
Design and Application: F. R. Peters. 
VicroriA INSTITUTE, at 4.30.—The Composite of Races and Religions in 
America: Rev. Dr. S. B. McCormick. 
TUESDAY, May 1o. 
Roya InstiruTion, at 3.—Natural History in the Classics. I.: The 
Natural History of the Poets, Homer, Virgil, and Aristophanes : Prof. 
D'Arcy W. Thompson, C.B. x 
ROVAL STATISTICAL SociETy, at 5—Suggestions for Recording the Life 
History and Family Connections of Every InJividual: W. Hazell. 
ZOOLOGICAL Society, at 8.30.—Notes on the Circulatory System of 
Elasmobranchs, I.: The Venous System of the Dogfish (Sey@léinm 
cantcula: Dr. C H. O'Donoghue.—Scent-organs in Trichoptera : B. F. 
Cummings.—Notes on Plumage Development in the African Wood-stork : 
G. Jennrison.—A New Cestode from an Albatross (Diomedea irrorata): 
H. A. Baylis. —The Deinocephalia, an Order of Manmal-like Reptiles : 
D. M. S. Watson.—The Species of the Genus Paralastor, Sauss, and some 
other Hymenoptera of the Family Eumenidz: Dr. R. C. L. Perkins. 
RovaL Socirty oF ARTS, at 4.30.—The Singing of Songs: Old and New. 
II. : Classical Songs: H. Plunkett Green. 
WEDNESDAY, May 20. 
AERONAUTICAL SOCIETY, at 8.30.—Wilbur Wright Memorial Lecture: Dr. 
R. T. Glazebrook. 
Rovat METEOROLOGICAL SOCIETY, at 4.30.—The Reduction of Barometer 
Readings in Absolute Units, and a New Form of Barometer Card: E. 
Gold.—A Cuban Rain Record and its Application: A. Hampton Brown. 
NO. 2324, VOL. 93] 
[May 14, 1914 
Rovat Society or Arts, at 8.30.—The Channel Tunnel and its Early 
History: J. C. Hawkshaw. 
Royat Microscoricar Society, at 8.—Exhibition of Microscopic Aquatic 
Life. 
THURSDAV. May 2x. 
Rovav Society, at 4.30.—/robable Papers : The Effect of the Magneton 
in the Scattering of a Rays: Prof. W. M. Hicks.—Luminous Vapours 
Distilled from the Arc, with Applications to the Study of Spectrum Series 
and their Origin. I.: Hon. k. J. Strutt.—The lTonisation of Gases by 
Collision and the Jonising Potential for Positive Ions and Negative 
Corpuscles: W. T. Pawlow.—The Determination of Elastic Limits under 
Alternating Stress Conditions: C, E. Stromeyer.—The Emission of 
Electricity from Various Substances at High Temperatures: G. W. C. 
Kayeand W. F. Higgins. 
RoyaL InstiruTion, at 3.—Identity of Laws: in General: and Biological 
Chemistry: Prof. Svante Arrhenius. 
Royat. GEOGRAPHICAL SOCIETY, at 5.—The Gulf Stream: Commander . 
Campbell Hepworth. 
INSTITUTION OF MINING AND METALLURGY, at 8. 
Roya Society oF ARTS, at 4.30.—The Indian Census of r1g11: 
graphy and Occupations: E. A. Gait. 
FRIDAY, May 22. 
RovAL INSTITUTION, at 9.—The Mortuary Chapels of the Theban Nobles : 
R. Mond. 
Puysicat Sociery, at 5.—Volatility of Thorium Active Deposit: T. 
Barratt and A. B. Wood.—The Passage of a-Particles through Photo- 
graphic Films: H. P. Walmsley and Dr. W. Makower.—A Null Method 
of Testing Vibration Galvanometers: S. Butterworth.—Experiments with 
an Incandescent Lamp: C. W. S. Crawley and S. W. J. Smith. 
SATURDAY, May 23. 
Rovat InstiruTiIon, at 3.—Fiords and their Origin. 
Distribution of Fiords: Prof. J. W. Gregory. 
Ethno- 
I. : The Nature and 
CONTENTS. 
PAGE 
Recent Extensions of the Quantum Hypothesis. 
By C. G. D. 34 os Saco ace a os Se » 263 
Books on Plant Diseases . 264 
Mechanicaland Chemical Engineering. ByT.H.B. 265 
Our Bookshelf + RE Deitel Ren erg. CRONE EE eRe a ame Cone 
Letters to the Editor :— 
The Constitution of Atoms and Molecules.—Prof. 
GeV. Nicholson ess Sp eet oe eee 
Temperature-Difference between the Up and Down 
Traces of Sounding-Balloon Diagrams.—Dr. W. 
van Bemmelen . . . © as Sout ae hot Ras) Pape Oe 
Cellular Structure of Emulsions.—Prof. W. M. 
Flinders Petrie, F.R.S. nog) ty 3) eign ee 
Modern Forms of Rontgen-Ray Tubes. (///ustvated.) 
By Charles E. S, Phillips . 270 
The Sicilian Earthquakeof May 8. ByDr.C. Davison 272 
The Bachelet Levitated) Ratlway 4.2 2s) su.) ney 
INIOtES ks, 8, 6 SOR emcee MUQ Ue) An nn scene 
Our Astronomical Column :— 
A Registering Microphotometer ........ . 278 
Variable Star Observations. . . . ers 
Enhanced Manganese I.ines anda Andromed2. . . 278 
The Carnegie Trust. By A. W. S.. ; Pi 
Laws of Atmospheric Movements. By W. H. 
Mimes, F.R SS. 0s pee ag: sine hee 
An Electrical Analogy of the Zeeman Effect. By 
a | ee ae WS PCerm e 
Relations between the Spectra and Other Charac- 
teristics of the Stars.—III. (W2zth Diagram.) By 
Prof. H. N. Russell . o: Xe 
University and Educational Intelligence. .. .. . 286 
Societies and Academies: .@)°, . . :./'. 5 . ween 
Books Received . . aces 289 
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