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PARIS.

TUESDAY, OCTOBER 36. Academy of Sciences, October 16.-M. Troost in the

FARADAY Society, at 8. - Discussior.--Alternate Current Electrolysis :

Prof. Ernest Wilson. --Alternate Current Electrolysis as shown by chair.-On the absolute desiccation of vegetable products : Oscillograph Records : W.R. Cooper.-Note on the Crystalline Structure L. Maquenne. It is commonly assumed that when a of Electro-deposited Copper : Prof. A. K. Huntington.-Some Obser substance has been heated in an air oven at 100° C. to

ations Respecting the Relation of Stability to Electrochemical Effaency

in Hypochlorite Production : W. Pollard Digby. 120° C. until its weight becomes constant, all the moisture

WEDNESDAY, NOVEMBER 1. has been driven off. The author shows that this is not

ENTOMOLOGICAL SOCIETY, at 8. the case for substances such as starch and flour. For SOCIETY OF PUBLIC ANALYSTS, at 8.-(1) A Rapid Method for the Deter complete drying, either a current of well dried gas must mination of Tin in Copper-Tin Alloy ; (2) Water from the Simplon be passed over the starch at about 120° C., or it must be

Tunnel: A. G. Levy.-Notes on (1) Dika Oil; (2) Suria Fat: J.

Lewkowitsch.-The Determination of Oxygen in Copper : L. Archbuti. sealed up in a vacuum with a dehydrating agent for a

THURSDAY, NOVEMBER 2. long period.—Presentation of the twelfth volume of the

CHEMICAL SOCIETY, at 8.30.-Solution and Pseudo-solution, part iv, "Mémorial du Dépôt général de la Guerre": Bouquet Some of the Arsenious Properties of Arsenious Sulphide and Ferk de la Grye. This volume includes the measurements of

Hydrate: E. Linder and H. Picton.-The Molecular Conductivity of

Water: P. Blackman.-The Stereoisomerism of Substituted Ammoninm the new meridian of France from the bases of Paris, Compounds : H. 0. Jones.-The Influence of very Strong Electro Perpignan, and Cassel. Attention is directed

to
the

magnetic Fields on the Spark Spectra of Ruthenium, Rhodium, and accuracy of the results obtained.-Preliminary note on the Palladium; J. E. Purvis.-Note on the Fluorides of Selenium and observation of the total solar eclipse of August 30 made at

Tellurium : E. B. R. Prideaux.--The Constitution of Glutaconic Acid:

J F. Thorpe. -Some Alkyl Derivatives of Glutaconic Acid and of 2:8 Guelma : MM. Bourget and Montangerand. Fifteen

Dioxypyridine : H. Baron and J. F. Thorpe.-Note on the Formation of photographs were obtained during totality, different B-Methylglutaconic Acid and of aß. Dimethylglutaconic Acid: B.V. coloured screens being interposed. The plates are all good,

Darbisbire and J. F. Thorpe.

LINNEAN Society, at 8.- Plant Ecology, interpreted by Direct Response and show excellent images of the corona and protuberances. to the Conditions of Life: Rev. G. Henslow. -Observations on the total eclipse of the sun of August 30 : RÖNTGEN Society, at 8.15.-The Ruhmkorff Coil: Prof. WertbeinaJ. Comas Solá. The observations, which were made at

Salomonson. Vinaroz, included three photographs of the corona and of

Civil AND MECHANICAL ENGINEERS' SOCIETY, at 8.-Sea Defences:

Baron H. T. H. Siccama. the spectra of the chromosphere.-On functions having a finite number of branches : Georges Rémoundos.—On the

CONTENTS.

PAGE calculation of an arch in masonry : M. Auric.-On a

The Study of Fishes. By H, G.

625 phenomenon of cooling observed in silver wires plunged

The Far East .

баб into water and through which electric currents are passing : Absorption Spectra.' By E. c. c. B.

637 E. Rogovsky. It is shown that the resistance of the wire

Our Book Shelf :depends on the magnitude of the current passing through

Yvert : “ Identification por las Impresiones digitoit, this effect being due to the fact that all parts of the

628 wire are not, under these conditions, at the same tempera

palmares (La Dactiloscopia)."-E. H. J. S.

" Science in South Africa: a Handbook and Review 628 ture. It is necessary, to obtain exact values of the resist

Thomas : “ Stone Gardens"

639 ance of wires in a liquid at the temperature of this liquid,

Watson : “Oblique and Isometric Projection

629 to extrapolate from a series of observations made with

Letters to the Editor:different intensities of current.--On the forms of lightning

Eclipse Phenomena.—Sir Oliver Lodge, F.R.S. . 629 conductors : G. M. Stanoïévitch.-The basic character of

Geometry of Position.—Sir Oliver Lodge, F.R.S. 629 pyranic oxygen. Halogen compounds of dinaphthopyryl

Eclipse Predictions.-Dr. A. M. W. Downing. with metals and metalloids : R. Fosse and L. Lesage.

FR.S.

629 CoHo

Chelisers and House-fies. — Prof. Sydney). Hickson, The radical dinaphthopyryl, -CH

O, although not
F.R.S.

629 C.H.

The Rudimentary Hind Limbs of the Boine Snakes. containing nitrogen, forms a large number of double salts, examples of which with platinum, lead, iron, zinc, tin,

Frank E. Beddard, F.R.S.

A Rare Game Bird.-Sir Herbert Maxwell, Bart., bismuth, arsenic, and antimony are given in the present

F.R.S. note.-On the development of amylase during the germin

On a New Species of Guenon from the Cameroons.ation of seeds : Jean Effront. The sugar-forming and

Dr. Henry O. Forbes

630 liquefying powers of malt do not develop at the same rate

The Absorption Spectrum of Benzene in the Ultraduring germination, the former being the more rapid and

violet Region. - Dr. E. C. C. Baly; Prof. J. reaching a maximum, whilst the latter steadily increases

Norman Collie, F.R.S.

630 with the time of germination.—The measurement of the Action of Radium Salts on Gelatin.-W. A. Douglas mechanical work obtainable from Limousin cattle: M.

Rudge

б31 Ringelmann.-On a new flagellated parasite of Bombyx

The Problem of “Shadow-bands.' Catharine O. mori (Herpetomonas bombycis): C. Levaditi.

Stevens

631 New South Wales. Rhymes on the Value of n.-*

6zi Royal Society, September 6.—Mr. H. A. Lenehan, presi- Experiments on Variations of Lepidoptera by En. dent, in the chair.-Reinforced concrete, paper iii. : Prof. vironment. (Illustrated.) By F. Merrifield 632 W. H. Warren. The following matters were dealt with :- Chemistry in the Service of the State

634 (a) The adhesion of cement mortar and concrete to steel. On the Origin of Eoliths

635 (b) The experimental determination of the neutral axis in Notes

636 a plain concrete, and also in a reinforced concrete beam, Our Astronomical Column :and the curves of strain for loads increasing from zero to The Recent Large Sun.spot. (Illustrated.)

639 the load producing fracture; the determination of the Further Results of the French Eclipse Expeditions 639 true form of the stress curve from the actual strain curve Nova Aquilæ No. 2 .

640 in a plain and in a reinforced concrete beam. (c) The safe Star with a Large Proper Motion

640 working stresses and the fundamental equations recom- Observations of Perseids, August

040 mended for the design of reinforced concrete structure.- Mathematical and Physical Science at the British The occurrence of inclusions of basic plutonic rocks in a Association. By Dr. C. H. Lees dyke near Kiama : C. A. Sussmilch.

Chemistry at the British Association

643 Scientific Research in Medicine. By Dr. George DIARY OF SOCIETIES.

Nuttall, F.R.S...
The Mechanics

of the Ascent of Sap in Trees. By FRIDAY, OCTOBER 27. Physical Society, at 5.-The Theory of Phasemeters; Dr. W. E. Prof. J. Larmor, F.R.S.

Sumpner.--Apparatus designed for measuring the Coronal Radiation Experiments with the Langley Aérodrome. (Nias during an Eclipse : Prof. H. L. Callendar, F.R.S.

trated.) By Dr. S. P. Langley

645 SATURDAY, OCTOBER 28. University and Educational Intelligence

640 THE ESSEX FIELD CLUB, at 6.30 (at the Essex Museum of Natural History, Stratford). --Straw. Plaiting i a Lost Essex Industry: J. Chalkley

Societies and Academies
Diary of Societies . .

648

630

630

640

Gould.

“No. 2" SPECTROMETER.

=

(Diameter of Circle = 8") The Rotation of the Prism Table and of thje Telescope are both read by Vernier on a Platinoid Circle to 30 seconds.

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