OF THE

University o

MICHIGAN

ENERAL LIBRARY

ROYAL SOCIETY OF LONDON.

From November 19, 1863, to December 22, 1864, inclusive.

VOL. XIII.

LONDON:

PRINTED BY TAYLOR AND FRANCIS,

RED LION COURT, FLEET STREET.

MDCCCLXIV.

CONTENTS.

VOL. XIII.

Page

A General Catalogue of Nebula and Clusters of Stars for the Year 1860-0,

with Precessions for 1880-0. By Sir J. F. W. Herschel, Bart., F.R.S.

Note on Kinone. By A. W. Hofmann, LL.D., F.R.S...

2

4

Researches on the Colouring-matters derived from Coal-tar.-I. On Aniline-

yellow. By A. W. Hofmann, LL.D., F.R.S...

6

Researches on the Colouring-matters derived from Coal-tar.-II. On

Aniline-blue. By A. W. Hofmann, LL.D., F.R.S. ...

9

Account of Magnetic Observations made between the years 1858 and 1861

inclusive, in British Columbia, Washington Territory, and Vancouver

Island. By Captain R. W. Haig, R.A.

15

On Plane Water-Lines. By W. J. Macquorn Rankine, C.E., LL.D.,

F.R.SS.L. & E., Assoc. Inst. N.A.

.....

On the degree of uncertainty which Local Attraction, if not allowed for,

occasions in the Map of a Country, and in the Mean Figure of the Earth

as determined by Geodesy: a Method of obtaining the Mean Figure free

from ambiguity, from a comparison of the Anglo-Gallic, Russian, and

Indian Arcs: and Speculations on the Constitution of the Earth's Crust.

By the Venerable J. H. Pratt, Archdeacon of Calcutta.....

On the Meteorological Results shown by the Self-registering Instruments

at Greenwich during the extraordinary Storm of October 30, 1863. By

James Glaisher, F.R.S., F.R.A.S.

Anniversary Meeting:-

Report of Auditors.....

List of Fellows deceased, &c.

15

18

19

21

21

22

22

31

39

elected since last Anniversary

Address of the President

Presentation of the Medals

Election of Council and Officers

Financial Statements...

Changes and present state of the number of Fellows..

On the Spectra of some of the Chemical Elements. By William Huggins,

F.R.A.S.

43

On the Acids derivable from the Cyanides of the Oxy-radicals of the Di- and

Tri-atomic Alcohols. By Maxwell Simpson, A.B., M.B., F.R.S.

44

Page

First Analysis of 177 Magnetic Storms, registered by the Magnetic Instru-

ments in the Royal Observatory, Greenwich, from 1841 to 1857. By

George Biddell Airy, F.R.S., Astronomer Royal..

On the Sudden Squalls of 30th October and 21st November 1863. By

Balfour Stewart, M.A., F.R.S., Superintendent of the Kew Observatory.

(Plate I.)......

On the Equations of Rotation of a Solid Body about a Fixed Point. By

William Spottiswoode, M.A., F.R.S.

...

Experiments, made at Watford, on the Vibrations occasioned by Railway

Trains passing through a Tunnel. By Sir James South, LL.D., F.R.S.,

one of the Visitors of the Royal Observatory of Greenwich

Extract of a Letter to General Sabine from Dr. Otto Torell, dated from

Copenhagen, Dec. 12, 1863

Results of hourly Observations of the Magnetic Declination made by Sir

Francis Leopold M'Clintock, R.N., and the Officers of the Yacht Fox,'

at Port Kennedy, in the Arctic Sea, in the Winter of 1858-59; and a

Comparison of these Results with those obtained by Captain Maguire,

R.N., and the Officers of H.M.S.Plover,' in 1852, 1853, and 1854, at

Point Barrow. By Major-General Sabine, R.A., President

Examination of Rubia munjista, the East-Indian Madder, or Munjeet of

Commerce. By John Stenhouse, LL.D., F.R.S.

....

On the Magnetic Variations observed at Greenwich. By Professor Wolf,

of Zurich

.....

A Description of the Pneunogastric and Great Sympathetic Nerves in an

Acephalous Foetus. By Robert James Lee, B.A. Cantab.

On the Conditions, Extent, and Realization of a Perfect Musical Scale on

Instruments with Fixed Tones. By Alexander J. Ellis, B.A., F.C.P.S... 93

On the Osteology of the genus Glyptodon. By Thomas Henry Huxley,

F.R.S.

On the Great Storm of December 3, 1863, as recorded by the Self-registering

Instruments at the Liverpool Observatory. By John Hartnup, F.R.A.S.,

Director of the Observatory

....

On the Criterion of Resolubility in Integral Numbers of the Indeterminate

Equation f=ax2+a'x2+a′′x'^2+2bx'x"+2b'xx'+2b'x'x=0.

By H. J. Stephen Smith, M.A., F.R.S., Savilian Professor of Geometry

in the University of Oxford

Results of a Comparison of certain Traces produced simultaneously by the

Self-recording Magnetographs at Kew and at Lisbon; especially of those

which record the Magnetic Disturbance of July 15, 1863. By Senhor

Capello, of the Lisbon Observatory, and Balfour Stewart, M.A., F.R.S.

(Plate II.)

Experiments to determine the effects of impact, vibratory action, and a long-

continued change of Load on Wrought-iron Girders. By William Fair-

bairn, LL.D., F.R.S.

....

108

109

110

111

121

On the Calculus of Symbols.-Fourth Memoir. With Applications to the

Theory of Non-Linear Differential Equations. By W. H. L. Russell, A.B. 126

On Molecular Mechanics. By the Rev. Joseph Bayma, of Stonyhurst

College, Lancashire

126

On some further Evidence bearing on the Excavation of the Valley of the

Somme by River-action, as exhibited in a Section at Drucat near Abbe-

ville. By Joseph Prestwich, F.R.S.

....

A Contribution to the Minute Anatomy of the Retina of Amphibia and

Reptiles. By J. W. Hulke, F.R.C.S., Assistant-Surgeon to the Middlesex

and the Royal London Ophthalmic Hospitals

.....

Notes of Researches on the Acids of the Lactic Series.-No. I. Action

of Zinc upon a mixture of the Iodide and Oxalate of Methyl. By

E. Frankland, F.R.S., Professor of Chemistry, Royal Institution, and

B. F. Duppa.....

On the Joint Systems of Ireland and Cornwall, and their Mechanical Origin.

By the Rev. Samuel Haughton, M.D., F.R.S., Fellow of Trinity College,

Dublin

135

138

140

142

145

On the supposed Identity of Biliverdin with Chlorophyll, with remarks on

the Constitution of Chlorophyll. By G. G. Stokes, M.A., Sec. R.S..... 144

Continuation of an Examination of Rubia munjista, the East-Indian Madder,

or Munjeet of Commerce. By John Stenhouse, LL.D., F.R.S. ......

On the Spectra of Ignited Gases and Vapours, with especial regard to the

different Spectra of the same elementary gaseous substance. By Dr.

Julius Plücker, of Bonn, For. Mem. R.S., and Dr. J. W. Hittorf, of

Münster

On the Influence of Physical and Chemical Agents upon Blood; with special

reference to the mutual action of the Blood and the Respiratory Gases.

By George Harley, M.D., Professor of Medical Jurisprudence in Univer-

sity College, London

153

157

Researches on Radiant Heat.-Fifth Memoir. Contributions to Molecular

Physics. By J. Tyndall, F.R.S......

160

Remarks on Sun Spots. By Balfour Stewart, M.A., F.R.S., Superintendent

of the Kew Observatory

168

Description of an Improved Mercurial Barometer. By James Hicks...... 169

On Mauve or Aniline-purple. By W. H. Perkin, F.C.S.

170

On the Functions of the Cerebellum. By William Howship Dickinson,

M.D. Cantab.

177

An Inquiry into Newton's Rule for the Discovery of Imaginary Roots. By

J. J. Sylvester, F.R.S.

Description of a Train of Eleven Sulphide-of-Carbon Prisms arranged for

Spectrum Analysis. By J. P. Gassiot, F.R.S.

179

... 183

The Croonian Lecture.-On the Normal Motions of the Human Eye in rela-

tion to Binocular Vision. By Professor Hermann Helmholtz, For. Mem.

R.S.....

186

On the Orders and Genera of Quadratic Forms containing more than three

Indeterminates. By H. T. Stephen Smith, M.A., F.R.Š.

199

On some Phenomena exhibited by Gun-cotton and Gunpowder under special

conditions of Exposure to Heat. By F. A. Abel, F.R.S. . . . . .

204

On Magnesium. By Dr. T. L. Phipson, F.C.S.

217