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Report of the Committee requested "to report to the Meeting at

Oxford as to the Scientific Objects to be sought for by continuing

the Balloon Ascents formerly undertaken to great Altitudes." By

the Rev. ROBERT WALKER, M.A., F.R.S., Reader in Experimental

Philosophy in the University of Oxford

...............

Report of Committee appointed to prepare a Self-Recording Atmo-

spheric Electrometer for Kew, and Portable Apparatus for observing

Atmospheric Electricity. By Professor W. THOMSON, F.R.S.

Experiments to determine the Effect of Vibratory Action and long-

continued Changes of Load upon Wrought-iron Girders. By WIL-

LIAM FAIRBAIRN, Esq., LLD., F.R.S.........

A Catalogue of Meteorites and Fireballs, from A.D. 2 to A.D. 1860.

By R. P. GREG, Esq., F.G.S.....

Report on the Theory of Numbers.-Part II.

SMITH, M.A., F.R.S., Savilian Professor of Geometry in the Uni-

versity of Oxford ...........

By H. J. STEPHEN

On the Performance of Steam-Vessels, the Functions of the Screw, and

the Relations of its Diameter and Pitch to the Form of the Vesssel.

By Vice-Admiral MOORSOM

Report on the Effects of long-continued Heat, illustrative of Geological

Phenomena. By the Rev. W. VERNON HARCOURT, F.R.S., F.G.S. 175

Second Report of the Committee on Steam-ship Performance..........

Interim Report on the Gauging of Water by Triangular Notches ......

List of the British Marine Invertebrate Fauna

NOTICES AND ABSTRACTS

MISCELLANEOUS COMMUNICATIONS TO THE SECTIONS.

MATHEMATICS AND PHYSICS.

Address by the Rev. Professor PRICE, President of the Section

Dr. BRENNECKE on some Solutions of the Problem of Tactions of Apollonius

of Perga by means of modern Geometry .........

Rev. JAMES BOOTH on a New General Method for establishing the Theory of

Conic Sections.........

Integrals........

on the Relations between Hyperconic Sections and Elliptic

Mr. A. CAYLEY on Curves of the Fourth Order having Three Double Points...

Mr. PATRICK CODY on the Trisection of an Angle ......

Rev. T. P. KIRKMAN on the Roots of Substitutions

Rev. T. RENNISON on a new Proof of Pascal's Theorem ....

Professor H. J. STEPHEN SMITH on Systems of Indeterminate Linear Equations

Professor SYLVESTER on a Generalization of Poncelet's Theorems for the Linear

Representation of Quadratic Radicals....

Sir DAVID BREWSTER on the Influence of very small Apertures on Telescopic

of Perspective.....

on some Optical Illusions connected with the Inversion

on Microscopic Vision, and a New Form of Microscope

on the decomposed Glass found at Nineveh and other

on the Chromatic Properties of the Electric Light of

Dr. J. H. GLADSTONE on his own Perception of Colours

Professor JELLETT on a New Instrument for determining the Plane of Polariza-

Professor L. L. LINDELÖF on the Caustics produced by Reflexion

Professor MAXWELL on the Results of Bernoulli's Theory of Gases as applied

to their Internal Friction, their Diffusion, and their Conductivity for Heat... 15

on an Instrument for Exhibiting any Mixture of the Co-

lours of the Spectrum.......

Mr. MUNGO PONTON's Further Researches regarding the Laws of Chromatic

Professor WILLIAM B. ROGERS's Experiments and Conclusions on Binocular

Vision.........

M. SERRIN, Régulateur Automatique de Lumière Electrique ....

Mr. BALFOUR STEWART on some Recent Extensions of Prevost's Theory of Ex-

changes...............

Mr. G. JOHNSTONE STONEY on Rings seen in viewing a Light through Fibrous

Specimens of Calc-spar.............

Mr. R. THOMAS on Thin Films of Decomposed Glass found near Oxford....... 19

ELECTRICITY, MAGNETISM.

Mr. JOHN ALLAN BROUN on certain Results of Observations in the Observa-

tory of His Highness the Rajah of Travancore

on the Diurnal Variations of the Magnetic Declina-

tion at the Magnetic Equator, and the Decennial Period

on a New Induction Dip-Circle

on Magnetic Rocks in South India.............................

rite of India.........

on a Magnetic Survey of the West Coast of India... 27

Mr. A. CLARKE on a Mode of correcting the Errors of the Compass in Iron

Sir W. SNOW HARRIS on Electrical Force ......

on the Velocity of Earthquake Shocks in the Late-

Rev. T. RANKIN on the different Motions of Electric Fluid ......

Professor W. B. ROGERS on the Phenomena of Electrical Vacuum Tubes, in a

letter to Mr. Gassiot ........

M. H. VON SCHLAGINTWEIT'S General Abstract of the Results of Messrs. de
Schlagintweit's Magnetic Survey of India, with three Charts ....

M. WERNER and Mr. C. W. SIEMENS, Outline of the Principles and Prac-

tice involved in dealing with the Electrical Conditions of Submarine Electric

Telegraphs........

[blocks in formation]

Mr. W. R. BIRT on the Forms of certain Lunar Craters indicative of the Ope-

ration of a peculiar degrading Force ......

Professor HENNESSY on the Possibility of Studying the Earth's Internal Struc-

ture from Phenomena observed at its Surface........

Rev. EDWARD HINCKS on some Recorded Observations of the Planet Venus in

the Seventh Century before Christ .....................

V Mr. R. HODGSON on the brilliant Eruption on the Sun's Surface, 1st Septem-

ber 1859......................

Dr. JOHN LEE's Prospectus of the Hartwell Variable Star Atlas, with six Speci-

men Proofs............

Professor B. PIERCE on the Physical Constitution of Comets................

37

on the Dynamic Condition of Saturn's Rings............... 37

Professor B. PIERCE on the Motion of a Pendulum in a Vertical Plane when

the point of suspension moves uniformly on a circumference in the same

Mr. JOHN BALL on a Plan for Systematic Observations of Temperature in

Mountain Countries........

Mr. W. R. BIRT on Atmospheric Waves......

M. DU BOULAY'S Observations on the Meteorological Phenomena of the Vernal

Equinoctial Week ..........

Mr. R. DOWDEN on the Effect of a Rapid Current of Air .....

Admiral FITZROY on British Storms, illustrated with Diagrams and Charts....
Mr. J. PARK HARRISON on the Similarity of the Lunar Curves of Minimum
Temperature at Greenwich and Utrecht in the Year 1859.........

Professor HENNESSY on the Principles of Meteorology

Captain MAURY on Antarctic Expeditions ...............

on the Climates of the Antarctic Regions, as indicated by Ob-

servations upon the Height of the Barometer and Direction of the Winds at

Rev. HENRY MOSELEY on the Cause of the Descent of Glaciers ........
Rev. T. RANKIN on Meteorological Observations for 1859, made at Huggate,
Yorkshire, East Riding

M. R. DE SCHLAGINTWEIT on Thermo-barometers, compared with Barometers
at great Heights

Captain W. PARKER SNOW on Practical Experience of the Law of Storms in

each Quarter of the Globe... ....

Mr. G. J. SYMONS's Results of an Investigation into the Phenomena of English

Thunder-storms during the years 1857-59.............

Professor WILLIAM THOMSON'S Notes on Atmospheric Electricity ...............

M. VERDET'S Note on the Dispersion of the Planes of Polarization of the

Coloured Rays produced by the Action of Magnetism*

Mr. E. VIVIAN'S Results of Self-registering Hygrometers.........

Rev. A. WELD's Results of Ten Years' Meteorological Observations at Stony-

GENERAL PHYSICS.

Mr. J. S. STUART GLENNIE, Physics as a Branch of the Science of Motion ...

a General Law of Rotation applied to the Planets

Rev. S. EARNSHAW on the Velocity of the Sound of Thunder.

on the Triplicity of Sound.....

Mr. PATRICK ADIE'S Description of an Instrument for Measuring Actual

* This should have been placed in an earlier division.

Mr. PATRICK ADIE'S Description of a New Reflecting Instrument for Angular

Measurement......

M. E. BECQUEREL on a Pile with Sulphate of Lead....................

The Hon. W. BLAND on an Atmotic Ship..............

Rev. J. BOOTH on an Improved Instrument for describing Spirals, invented by

Henry Johnson .....

Mr. A. CLAUDET on the Means of increasing the Angle of Binocular Instru-

ments, in order to obtain a Stereoscopic Effect in proportion to their Mag-

nifying Power........

on the Principles of the Solar Camera........

Mr. HENRY DRAPER on a Reflecting Telescope for Celestial Photography,

erecting at Hastings, near New York

Mr. W. LADD on an Improved Form of Air-Pump for Philosophical Experi-

Professor ANDREWS on Ozone

Dr. BIRD on the Deodorization of Sewage....

Professor B. C. BRODIE on the Quantitative Estimation of the Peroxide of

Mr. G. B. BUCKTON on some Reactions of Zinc-Ethyl .........................

Mr. J. J. COLEMAN'S Note on the Destruction of the Bitter Principle of Chy-

raitta by the Agency of Caustic Alkali........

on some remarkable Relations existing between the

Atomic Weights, Atomic Volumes, and Properties of the Chemical Elements

Dr. FRANKLAND and B. DUPPA on a new Organic Compound containing Boron

Dr. GLADSTONE'S Chemical Notes....

Mr. W. R. GROVE on the Transmission of Electrolysis across Glass .............

Mr. A. VERNON HARCOURT on the Oxidation of Potassium and Sodium ........

Mr. J. B. LAWES and Dr. J. H. GILBERT on the Composition of the Ash of

Wheat grown under various circumstances

Professor W. A. MILLER on the Atomic Weight of Oxygen........

C. MORITZ VON BOSE's Remarks on the Volume Theory

Mr. WARREN DE LA RUE and Dr. Hugo MULLER on a New Acetic Ether

occurring in a Natural Resin..............

Dr. LYON PLAYFAIR on the Representation of Neutral Salts on the type of a
Neutral Peroxide HO, instead of a Basic Oxide H2 O2

Professor T. H. ROWNEY on the Analysis of some Connemara Minerals

on the Composition of Jet .......

Mr. T. SCOFFERN on Waterproof and Unalterable Small-arm Cartridges........ 72

DR. HERMANN SPRENGEL on a New Form of Blowpipe for Laboratory Use... 72

Dr. THUDICHUM On Thiotherine, a Sulphuretted Product of Decomposition of

Albuminous Substances ....

Professor VOELCKER on the Occurrence of Poisonous Metals in Cheese ........

Dr. W. WALLACE on the Causes of Fire in Turkey-red Stoves........

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