OF THE

THIRTIETH MEETING

OF THE

BRITISH ASSOCIATION

FOR THE

ADVANCEMENT OF SCIENCE;

HELD AT OXFORD IN JUNE AND JULY 1860.

LONDON:

JOHN MURRAY, ALBEMARLE STREET.

6206

PRINTED BY

TAYLOR AND FRANCIS, RED LION COURT, FLEET STREET.

CONTENTS.

OBJECTS and Rules of the Association

Places of Meeting and Officers from commencement

Treasurer's Account

Table of Council from commencement.

Officers and Council

Officers of Sectional Committees

Corresponding Members.........

Page

xvii

XX

χχίν

XXV

xxviii

xxix

XXX

General Statement of Sums paid for Scientific Purposes

Extracts from Resolutions of the General Committee

Arrangement of the General Meetings

Address of the President .....

XXX

xxxi

xliv

.....

REPORTS OF RESEARCHES IN SCIENCE.

Report on Observations of Luminous Meteors, 1859-60. By a Com-

mittee, consisting of JAMES GLAISHER, Esq., F.R.S., F.R.A.S.,

Secretary to the British Meteorological Society, &c.; J. H. GLAD-

STONE, Esq., Ph.D., F.R.S. &c.; R. P. GREG, Esq., F.G.S. &c.;

and E. J. LOWE, Esq., F.R.A.S., M.B.M.S. &c.

Report of the Committee appointed to dredge Dublin Bay. By J. R.

KINAHAN, M.D., F.L.S., Professor of Zoology, Government School

of Science applied to Mining and the Arts

Report on the Excavations in Dura Den.

ANDERSON, D.D., F.G.S..........

By the Rev. JOHN

Report on the Experimental Plots in the Botanical Garden of the Royal

Agricultural College, Cirencester. By JAMES BUCKMAN, F.L.S.,

F.S.A., F.G.S. &c., Professor of Botany and Geology, Royal Agri-

cultural College

.........

........

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..

Page

43

44

45

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

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

48

Report on the Theory of Numbers.-Part II. By H. J. STEPHEN

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

versity of Oxford

....... 120

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

172

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............ 193

Interim Report on the Gauging of Water by Triangular Notches ......
... 217

List of the British Marine Invertebrate Fauna

.........

... 217

NOTICES AND ABSTRACTS

OF

MISCELLANEOUS COMMUNICATIONS TO THE SECTIONS.

MATHEMATICS AND PHYSICS.

MATHEMATICS.

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

Page

1

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

of Perga by means of modern Geometry

4

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

Conic Sections...............

4

......

on the Relations between Hyperconic Sections and Elliptic

Integrals.........

4

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

4

4

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

6

6

7

...

LIGHT, HEAT.

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

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

Mercury

on the Chromatic Properties of the Electric Light of

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

tion .......

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...

on an Instrument for Exhibiting any Mixture of the Co-

lours of the Spectrum.....

*.*......................

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13

13

14

15

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