Page

Mr. James Swinburne on a Potentiometer for Alternating

Currents

201

Prof. G. M. Minchin on the Calculation of the Magnetic Field

of a Current running in a Cylindrical Coil.....

Profs. William Ramsay and Sydney Young on the Thermal

Behaviour of Liquids

204

.. 215

Mr. W. Huey Steele on a Thermoelectric Diagram for some

Pure Metals

Dr. J. McCowan on Ridge-Lines and Lines connected with

them

Notices respecting New Books :—

Mr. A. E. H. Love's Treatise on the Mathematical

Theory of Elasticity

218

227

... 237

Mr. J. F. Blake's Annals of British Geology, 1892 .... 239

On the Nature of the Reflexion of Electrical Waves at the

End of a Conducting Wire, by MM. Kr. Birkeland and

E. Sarasin

Densities in the Earth's Crust, by A. J. Jukes-Browne... 244

..

241

NUMBER CCXXVI.-MARCH.

Prof. Arthur Smithells on the Luminosity of Gases

245

Dr. Alfred M. Mayer: Researches in Acoustics

259

Mr. John Daniel: A Study of the Polarization upon a Thin

Metal Partition in a Voltameter.-Part II.

288

Prof. G. M. Minchin on the Calculation of the Coefficient of

Self-Induction of a Circular Current of given Aperture and

Cross-Section....

300

M. P. Rudski on the Thermodynamics of the Sun..

304

Dr. G. Gore on the Changes of Temperature caused by Con-

tact of Liquids with Powdered Silica, &c.

306

Dr. G. Johnstone Stoney on the Limits of Vision: with

special Reference to the Vision of Insects

316

Notices respecting New Books :-

Dr. Siegfried Czapski's Theorie der Optischen Instru-

mente nach Abbe

331

....

Dr. P. Molenbroek's Anwendung der Quaternionen auf

der Geometrie

332

E. Wiedemann and H. Ebert's Physikalisches Prak-

tikum, mit besonderer Berücksichtigung der phy-

sikalisch-chemischen Methoden

Pierre de Heen's La Chaleur

334

335

On the Magnetization of Soft Iron, by M. P. Joubin

On the Experimental Investigation of the Rotational Coeffi-

cients of Thermal Conductivity, by Ch. Saret

336

338

Mechanical Energy of Molecules of Gases, by Dr. G. Gore.. 340

CONTENTS OF VOL. XXXVII.-FIFTH SERIES.

NUMBER CCXXVII.-APRIL.

Page

Prof. J. J. Thomson on the Electricity of Drops

341

Mr. S. U. Pickering on the Densities of Solutions of Soda and

Potash

359

Rev. O. Fisher on "Densities in the Earth's Crust"

375

Dr. John Kerr: Experiments on a Fundamental Question

in Electro-Optics-Reduction of Relative Retardations to

Absolute.....

Mr. E. C. Rimington on the Behaviour of an Air-Core Trans-

former when the Frequency is below a certain Critical

Value. (Plates X. & XI.)

380

394

... 406

Prof. G. M. Minchin on the Graphic Representation of

Currents in a Primary and a Secondary Coil ....

Dr. A. M. Mayer on an Apparatus to show, simultaneously to

several hearers, the Blending of the Sensations of Inter-

rupted Tones

411

Notices respecting New Books :-

Dr. J. H. Poynting's Essay on the Mean Density of the

Earth ...

413

Proceedings of the Geological Society :-

Prof. W. C. Brögger on the Basic Eruptive Rocks of Gran 415

Mr. F. Rutley on the Sequence of Perlitic and Spherulitic

Structures (a Rejoinder to Criticism)..

416

Prof. H. J. Johnston-Lavis on Enclosures of Quartz in

Lava of Stromboli, &c., and the Changes in Composi-

tion produced by them

416

Rev. W. R. Andrews and Mr. Jukes-Browne on the

Purbeck Beds of the Vale of Wardour

416

417

Mr. H. W. Monckton on a Picrite and other Associated

Rocks at Barnton, near Edinburgh...

Mr. H. Kynaston on the Stratigraphical, Lithological,

and Palæontological Features of the Gosau Beds of

the Gosau District, in the Austrian Salzkammergut.. 418

Prof. E. Hull on an Artesian Boring at New Lodge, near

Windsor Forest, Berks..

... 418

Mr. D. T. Edwards on Boring on the Booysen Estate,

Witwatersrand ...

419

Molecular Energy of Gases, by Prof. Oliver J. Lodge .... 419

An Experiment to Photograph the Spectrum of Lightning,

by G. Meyer...

On the Magnetization of Soft Iron, by M. P. Joubin

On the Thermal Behaviour of Liquids, by B. Galitzine.

On the Thermal Behaviour of Liquids, by P. de Heen......

420

421

423

424

NUMBER CCXXVIII.-MAY.

Page

Prof. S. P. Langley on the Internal Work of the Wind.-

(Plates V.-IX.)....

425

Mr. Thomas H. Blakesley on a new Electrical Theorem

Mr. Owen Glynne Jones on the Viscosity of Liquids

Mr. C. V. Boys on the Attachment of Quartz Fibres

Mr. T. H. Littlewood on a Method of finding the Refractive

Index of a Liquid; applicable when the Liquid is not

Homogeneous

448

451

463

Mr. M. Carey Lea on Transformations of Mechanical into

Chemical Energy. (Third Paper.) Action of Shearing-

Stress (continued)

467

470

Prof. J. H. van't Hoff on the Origin of the Theory of Solutions 475

Mr. James H. Gray on the Elasticity of Spider Lines

Messrs. J. Alfred Wanklyn and W. J. Cooper on the Method

of Fractional Distillation illustrated by the Investigation of

Kerosene

491

495

Notices respecting New Books:-

Dr. Irving Stringham's Uniplanar Algebra

499

Dr. B. Williamson's Elasticity.

501

Dr. A. Macfarlane's Definitions of the Trigonometric

Functions

501

On the Thermal Behaviour of Liquids, by Profs. W. Ramsay

and S. Young

Supplementary Remarks on Changes of Temperature caused

by Contact of Liquids with Silica, by Dr. G. Gore ... 504

Polarization of Non-Diffracted Infra-red Radiation by Wire

Gratings, by H. Du Bois and H. Rubens

505

Magnetization of Hollow and Solid Cylindrical Cores, by H.

Du Bois

507

Molecular Energy of Gases—a Correction .

507

On a Fundamental Question in Electro-Optics, by Prof. G.

Quincke..

Mr. J. W. Kearton on a New Mode of making Magic Mirrors 546

Mr. P. L. Gray on the Minimum Temperature of Visibility.. 549

Mr. M. Carey Lea on a New Method of Determining the

Relative Affinities of certain Acids ..

557

Dr. S. P. Thompson and Mr. Miles Walker on the Design

and Winding of Alternate-Current Electromagnets

564

Page

Mr. S. H. Burbury on the Second Law of Thermodynamics.. 574

Notices respecting New Books :--

Mr. Worthington G. Smith's Man, the Primeval Savage:

his Haunts and Relics, from the Hill-tops of Bedford-

shire to Blackwall.....

On the Magnetization of Iron and Nickel Wire by Rapid

Electrical Oscillations, by Prof. I. Klemenčič

Ring-Electromagnet for Producing Strong Fields, by H. du

Bois

On the Thermal Behaviour of Liquids, by P. de Heen.

Index

579

582

583

584

585

ERRATUM.

Page 487, line 10 from top, for not far removed from read not even
distantly related to.

PLATES.

I. & II. Illustrative of H. Nagaoka's Paper on the Hysteresis attending the Change of Length by Magnetization in Nickel and Iron.

III. & IV. Illustrative of Mr. J. Daniel's Paper on the Polarization upon a Thin Metal Partition in a Voltameter.

V.-IX. Illustrative of Prof. Langley's Paper on the Internal Work of the Wind.

X. & XI. Illustrative of Mr. Rimington's Paper on the Behaviour of an Air-Core Transformer when the Frequency is below a certain Critical Value.