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SATURDAY, NOVEMBER 26. tures.-Researches on dielectric solids : V. Crémieu and Essex Field CLUB (at Essex Museum, Stratford), at 6.30. --Delegate's L. Malcles. In the course of his researches on electric Report British Association : F. W. Rudler.-Notes on Supposed Lake convection, Crémieu observed some anomalies of electrical

Settlement at Skitt's Hill, Braintree : F. W. Reader.-Coast Erosion is

East Anglia : John Spiller. influence through solid dielectrics. The authors have commenced a systematic study of these phenomena, and give

MONDAY, NOVEMBER 28. an account in the present paper of the apparatus used, re- SOCIETY OF ARTS, at 8.-Musical Wind Instruments : David J. Blaikley serving the results for a future communication.-On the (Cantor Lecture I.) conductivity of gases from a flame : Paul Langevin and

INSTITUTE OF ACTUARIES, at 5.- Inaugural Address by the President, Eugène Bloch. The coefficient of re-combination of the

Mr. Henry Cockburn. ions from a flame has been measured, and found to be equal

TUESDAY, NOVEMBER 29. to about 0.7. This value is less than one, as the theory ZOOLOGICAL Society, at 8.30.--Some Observations on the Field Natural requires, and is much greater than in the case of the

History of the Lion : Capt. Richard Crawshay:-On some Nudibranchs

from East Africa and Zanzibar. Part VI. : Sir Charles Eliot, K.C.M.GRöntgen rays.-On the absorption of hydrogen by rhodium :

The Altai Lynx : R. Lydekker, F.R.S.-On Old Pictures of Giraffes L. Quennessen. Contrary to the statement given in the and Zebras: R Lydekker, F.R S.-On the Morphology and Classifica text-books, the absorptive power of rhodium for hydrogen tion of the Asellota Group of Crustaceans, with Descriptions of the is nil. Rhodium is not analogous with palladium in this

Genus Stenetrium and its Species : Dr. H. J. Hansen.-On the Laceris

depressa of Camerano: G. A. Boulenger, F.R.S. respect. The action of boric acid on the alkaline peroxides INSTITUTION OF CIVIL

ENGINEERS, at 8.--Discussion : Distribution of and the formation of perborates : George F. Jaubert. By Electrical Energy : J. F. C. Snell. the action of boric acid upon sodium peroxide a perborate of sodium is formed, the analysis of which leads to the

WEDNESDAY, NOVEMBER 30. composition Na,1,0,101,0. On re-crystallising this a

Society Of Arts, at 8.-The British Canals Problem : Arthur Lee. substance possessing more oxygen, NaBO,,4H,0, is formed,

THURSDAY, DECEMBER 1. and this is very stable at the ordinary temperature, although

Royal Society, at 4:30.—Probable Papers :- The Ascent o Water in decomposed rapidly at 100° C. The latter substance, treated

Trees : Dr. A. J. Ewart.- On the Presence of Tyrosinases in the Skins of with 50 per cent. sulphuric acid, gives after filtration some Pigmented Vertebrates. Preliminary Note : Miss F. M. Durban. through guncotton a solution of hydrogen peroxide of a

-On Chemical Combination and Toxic Action as Exemplified in Hano

| . strength of 150 to 200 volumes.-On thioforinic acid : V.

Cerebral Localisation. Part II. : Dr. A. W. Campbell. Auger. The author has shown in a previous paper that CHEMICAL Society, at 8.- The Nitrites of the Alkali Metals and Metals the substance regarded by Wöhler and Limpricht as thio- of the Alkaline Earths, and their Decomposition by Heat: P. C. Ráy. formic acid is in reality trithioformaldehyde. The method

RÖNTGEN SOCIETY, at 8.15. which was found to give the best yield of sodium thio

LINNEAN SOCIETY, at 8.-Proteid Digestion in Animals and Plants :

Prof. Sidney H. Vines, F.R.S. formate was the interaction of sodium hydrogen sulphide with phenyl formate. The latter substance was incidentally

FRIDAY, DECEMBER 2. obtained in the pure state for the first time, and details of

AERONAUTICAL Society, at 8.-The Aéronautical Exbibits at the its preparation are given.—The synthesis of BB-dimethyl

St. Louis Exbibition : the President, Major B. Baden-Powell. -Kites,

Kite-flying and Aëroplanes: W. H. Dines - The Work of the Inter adipic acid : G. Blanc.-On a new sugar from the berries national Aëronautical Commission : Dr. M. H. Hergesell. ---Captive of the mountain ash : Gabriel Bertrand. The sugar is Balloon Photography: Griffith Brewer. isomeric with, but distinct from, sorbite and mannite, and is provisionally named sorbierite. Its physical properties are given, and its composition as a hexahydric alcohol determined by the production of a hexacetate.-The de

CONTENTS.

PAGE velopment of the organic material in seeds during their

Naturdenkmäler.

73 ripening : G. André. On the detection of cotton seed oil

Principles of Fuel Combustion. By J. S. S. B. 74 in olive oil : E. Milliau. The test proposed is a modification of the reduction test with silver nitrate.-Anhydro

School Mathematics .

75

Our Book Shelf :biosis and tropisms : Georges Bohn. On the growth of man and of living beings in general : Charles Henry and

Schneider : “Jlandbuch der Laubholzkunde.”- Prof. Louis Bastien.—The evolution of the weight and organic

Percy Groom material of the leaf during necrobiosis in white light : L.

Bell: “The Cancer Problem in a Nutshell."-R, T. H. 26 Beulaygue.-On heterogeneity in the Stichodactyline

“ Photography on Tour”

Austin : “The Story without an End group : Armand Krempf.—The comparative influence of

Letters to the Editor :some organic compounds of phosphorus on the nutrition and development of animals : A. Desgrez and A. Zaki. On the

On the Origin of Flagellate Monads and of Fungus. inoculation of cancer : M. Mayet.--On the bleaching of

germs from Minute Masses of Zooglæa.-(Illustrated.) flour by electricity : M. Balland. The treatment of flour

--Dr. H. Charlton Bastian, F.R.S.

77

81 by electrified air has a bleaching action, and produces

The Temperature of Meteorites.-H. E. Wimperis chemical changes corresponding to the effect of age.

Mount Everest : the Story of a Controversy.—Douglas
W. Freshfield

82 Observations of the Leonid Meteors of 1904.-W. H. Milligan.

83 DIARY OF SOCIETIES.

The Discovery of Argon. - Prof. G. H. Darwin, F.R. s. 83
THURSDAY, NOVEMBER 24.
Blue-stained Flints. —Dr. F. J. Allen

83

Inheritance of Acquired Characteristics.-D. E. ROYAL SOCIETY, at 4.30.-On the Refractive Indices of the Elements : C. Cuthbertson.-The Flow of Water through Pipes. Experiments on

Hutchins

83 Stream-line Motion and the Measurement of Critical Velocity: Drs. H. T. Dr. Koenig's Method of Colour Photography

83 Barnes and E. G. Coker.-On Galvanic Cells produced by the Action of The New Whale Fisheries. (Illustrated.) By D. W. T. 84 Light. Preliminary Communication : Dr. M. Wilderman. --Some Physical

Notes

S; Characters of the Sodium Borates, with a New and Rapid Method for the Determination of Melting Points : C. H. Burgess and A. Holt, jun.

Our Astronomical Column :-On the Convergence of Infinite Series of Analyric Functions : H. A. Encke's Comet (1904 h)

80 Webb.

Observations of Perseids

89 INSTITUTION OF ELECTRICAL ENGINEERS, at 8.- Hydrodynamical and

89 Electromagnetic Investigations regarding the Magnetic-Flux Distribu- Heights of Meteors . tion in Toothed-Core Armatures: Prof. H. S. Hele-Shaw, F.R.S., The Photographic Spectrum of Jupiter

So Dr Alfred Hay, and P. H. Powell.

Science and the State. By Sir William Abney,

K.C.B., F.R.S.
FRIDAY, NOVEMBER 25,

90 The Ben Bulben District. (Illustrated.)

91 PHYSICAL SOCIETY, at 5.-The Measurement of Small Differences of

Coast Erosion and Protection

92 Phase : Dr. W. E. Sumpner.-On the Curvature-method of Teaching Geometrical Optics : Dr. C. V. Drysdale.(1) Exhibition of Specimens of The November Meteors of 1904: By W. F. Denning 93 Crystals showing the Phenomenon of Luminous Rings; (2) On a Rapid University and Educational Intelligence

94 Method of Approximate Harmonic Analysis: Prof. Silvanus P.

Societies and Academies
Thompson.-Exhibition of Apparatus by Prof. Dalby, Mr. Darling,
Dr. Drysdale, and Prof. Thompson.

Diary of Societies .

90

.

76

76 76

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