Researches on the Action of Sulphuric Acid upon the Amides and

Nitriles, with Remarks on the Conjugate Sulpho-acids. By George

B. Buckton, Esq., F.L.S., F.C.S., and A. W. Hofmann, Ph.D.,

F.R.S.

page 158

On Quantitative Measurement in Statical Electricity, and on some

new Phenomena of Electrical Force. By Sir William Snow

Harris, F.R.S.

.. 166

On Colour Blindness. By William Pole, Esq., F.R.A.S., F.G.S.,

Memb. Inst. C.E..

172

Researches on the Velocities of Currents of Air in Vertical Tubes,

due to the presence of Aqueous Vapour in the Atmosphere. By

W. D. Chowne, M.D.

177

On the Thermal Effects of Fluids in Motion. By J. P. Joule, Esq.,

F.R.S., and Prof. W. Thomson, F.R.S.

178

On the Stability of Loose Earth. By W. J. Macquorn Rankine, Esq.,

C.E., F.R.SS. L. & E., Regius Professor of Civil Engineering and

Mechanics in the University of Glasgow

185

On the Geometrical Isomorphism of Crystals. By Henry James

Brooke, Esq., F.R.S., Hon. M.C.P.S. &c.

187

On some Compounds of Ethylene. By H. L. Buff

188

Description of an Instrument for registering changes of Temperature.

By Balfour Stewart, Esq.

195

Researches on Organo-metallic Bodies. Third Memoir.-On a New

Series of Organic Acids containing Nitrogen. By Edward Frank-

land, Ph.D., F.R.S.

198

On the Action of Urari and of Strychnia on the Animal Economy.

By Prof. Albert Kölliker of Wurzburg.

201

205

Part I.

By

Researches on the Foraminifera. Part II. By William B. Carpenter,

M.D., F.R.S., F.G.S. &c.

Electro-Physiological Researches.-Tenth Series.

Signor Carlo Matteucci, Professor in the University of Pisa. 209

On the Existence of Multiple Proportion in the quantities of Heat

produced by the Chemical Combination of Oxygen and other bodies.

By Thomas Woods, M.D.

Researches into the nature of the Involuntary Muscular Fibre. By

George Viner Ellis, Esq., Professor of Anatomy in University Col-

lege, London

211

212

Account of the Construction of a Standard Barometer, and of the Ap-

paratus and Processes employed in the Verification of Barometers

at the Kew Observatory. By John Welsh

214

On the Aurora. By Reuben Phillips, Esq. .

214

On the Lunar-Diurnal Magnetic Variation at Toronto. By Major-

General Edward Sabine, R.A., D.C.L., Treas. and V.P.R.S.

On Autopolar Polyedra. By the Rev. Thomas P. Kirkman, M.A. . 217

Chemical Examination of Burmese Naphtha, or Rangoon Tar. By

Warren De la Rue, Ph.D., F.R.S., and Hugo Müller, Ph.D. page 221

Experimental Researches on the Organ of Vision.-Part I. Micro-

scopic Examination of the Circulation of the Blood in the Vessels

of the Iris and of the Choroid Membrane, &c. By Augustus Waller,

M.D., F.R.S.

Researches on the Action of certain parts of the Solar Spectrum upon

the Iris. By E. Brown-Séquard, M.D. Communicated by Dr.

Sharpey, Sec. R.S.

Photo-chemical Researches.-Part I. On the Measurement of the

Chemical Action of Light. By Professor Bunsen of Heidelberg,

and Henry Enfield Roscoe, B.A., Ph.D. Communicated by Prof.

Stokes, Sec. R.S.

229

233

234

Photo-chemical Researches.-Part I. On the Measurement of the

Chemical Action of Light. By Professor Bunsen and Dr. H. E.

Roscoe (concluded).

235

Observations made to ascertain the Specific Gravity of Sea-water

in the Northern and Southern Hemispheres. By Rear-Admiral

Philip P. King, R.N., F.R.S. &c.

. 291

On the Existence of Silver in Sea-water. By Frederick Field, F.C.S. 292

On the Causes of the great Variation among the different measures

of the Earth's Mean Density. By Captain W. S. Jacob, Director

of the Observatory at Madras.

295

On Practical Methods for Rapid Signalling by the Electric Tele-

graph. By Prof. W. Thomson, F.R.S.

299

On Practical Methods for Rapid Signalling by the Electric Tele-

graph. (Second Communication.) By Prof. W. Thomson, F.R.S. 303

On the Equation of Laplace's Functions, &c. By W. F. Donkin, M.A.,

F.R.S., F.R.A.S., Savilian Professor of Astronomy, Oxford

307

A Memoir on Curves of the Third Order. By Arthur Cayley, Esq.,

F.R.S.

310

On the k-partitions of a Polygon and Polyace. By the Rev. T. P.

Kirkman, M.A.

311

On the Scelidothere (Scelidotherium leptocephalum, Owen), a large

extinct Terrestrial Sloth. By Prof. R. Owen, F.R.S.

312

On the evidence of the existence of the Decennial Inequality in the

Solar-diurnal Variations, and its non-existence in the Lunar-

diurnal Variation of the Magnetic Declination at Hobarton. By

Major-General Sabine, R.A., D.C.L., Treas. and V.P.R.S.. page 314

On the Function of the Thyroid Body. By Peter Martyn, Esq.,

M.D. Lond., Surgeon R.N.

315

Experimental Researches on the Strength of Pillars of Cast Iron.

By Eaton Hodgkinson, Esq., F.R.S.

318

Memoir on the Symmetric Functions of the Roots of certain Systems

of two Equations. By Arthur Cayley, Esq., F.R.S.

322

Memoir on the Resultant of a System of two Equations. By Arthur

Cayley, Esq., F.R.S. .

322

Memoir on the Symmetric Functions of the Roots of an Equation.

By Arthur Cayley, Esq., F.R.S..

323

Memoir on the Conditions for the Existence of given Systems of

Equalities among the Roots of an Equation. By Arthur Cayley,

Esq., F.R.S..

324

Tables of the Sturmian Functions for Equations of the Second, Third,

Fourth and Fifth Degrees. By Arthur Cayley, Esq., F.R.S.

Photo-chemical Researches.-Part II. Phenomena of Photo-chemical

Induction. By Prof. Bunsen and H. E. Roscoe, B.A.

325

326

Observations on Glaciers. By John Tyndall, Esq., F.R.S., and

Thomas H. Huxley, Esq., F.R.S.

331

On some of the Products of the Destructive Distillation of Boghead

Coal.-Part I. By C. Greville Williams, Esq. . .

338

On the Optical Characters of certain Alkaloids associated with

Quinine, and of the Sulphates of their Iodo-compounds.

W. B. Herapath, M.D. .

By

340

On the Nervous System of Lumbricus terrestris. By J. Lockhart

Clarke, Esq., F.R.S..

343

An Account of the two Methods of Reproduction in Daphnia, and of

the Structure of the 'Ephippium.' By John Lubbock, Esq., F.G.S. 352

On the Thermo-electricity of Ferruginous Metals, and on the Thermal

Effects of Stretching Solid Bodies. By J. P. Joule, F.R.S.

355

The Bakerian Lecture.--On the Relations of Gold and other Metals

to Light. By M. Faraday, Esq., F.R.S.

356

On the Photography of the Moon. By William Crookes, Esq.

Researches on the Reproductive Organs of the Annelids. By Thomas

Williams, M.D., F.L.S., Physician to the Swansea Infirmary

Addition to a Memoir on the Determination of Unknown Functions

that are evolved under Definite Integrals. By J. Gomes de Souza,

363

371

Esq.

376

History of two Cases of Hernia of the Ovaries, in one of which there

was a periodical Enlargement of one or other of these Organs. By

Henry Oldham, M.D.

page 377

380

Further Observations on the Anatomy and Physiology of Nautilus.

By John Denis Macdonald, Esq., Assistant Surgeon R.N.

Brief Description of a Ctenostomatous Polyzoon, allied to Vesicularia,

occurring on the Australian Coast. By John D. Macdonald, Esq. 383

Observations on the Natural Affinities and Classification of Gastero-

poda. By John D. Macdonald, Esq.

384

On the Sea Saw-dust of the Pacific. By John D. Macdonald, Esq. 393

On what the Colonial Magnetic Observatories have accomplished.

By Major-General Sabine, R.A., Treas. and V.P.R.S.

On the Immediate Principles of Human Excrements in the Healthy

State. By W. Marcet, M.D. .

Description of a Chronometer Compass. By Ralph Reeder, Esq.

Extract of a Letter to General Sabine, from M. R. Wolf

. 396

413

. 416

416

Description of a Species of Asteroid Polypes, probably forming the

type of a new genus of Alcyonidæ. By John D. Macdonald, Esq. 417

A System of Train-signalling. By Charles V. Walker, Esq., F.R.S. 418

On the Action of Aqueous Vapour in disturbing the Atmosphere.

By Thomas Hopkins, Esq.

421

On the Structure and Development of the Cysticercus Cellulose, as

found in the Muscles of the Pig. By Geo. Rainey, Esq., M.R.C.S.E. 422

On the Serpentines of Canada and their associated Rocks. By

T. Sterry Hunt, Esq., of the Geological Survey of Canada.

On Determinants, better called Eliminants. By Professor Francis

Newman, M.A.

423

426

On an Element of Strength in Beams subjected to Transverse Strain,

named by the author The Resistance of Flexure.' (Second Com-

munication.) By William Henry Barlow, Esq., F.R.S..

432

On the Theory of the Gyroscope. By the Rev. William Cook, M.A. 437

Researches on Silica. By Col. P. Yorke, F.R.S. .

440

Appendix to Mr. Barlow's Paper "On an Element of Strength in Beams

subjected to Transverse Strain," &c. By Peter Barlow, Esq., F.R.S. 442

On the Application of Parabolic Trigonometry to the Investigation

of the Properties of the Common Catenary. By the Rev. James

Booth, LL.D., F.R.S.

On the Magnetic Induction of Crystals. By Prof. Julius Plücker,

of Bonn, For. Memb. R.S..

Inquiries into the Quantity of Air inspired throughout the Day and

Night, and under the influence of Exercise, Food, Medicine, Tem-

perature, &c. By Edward Smith, M.D.

VOL. VIII.

с

443

448

451

On the Plasticity of Ice, as manifested in Glaciers. By James
Thomson, A.M., C.E.

page 455

On the part which the Silicates of the Alkalies may play in the
Metamorphism of Rocks. By T. Sterry Hunt, Esq.

On the Comparison of Transcendents, with certain applications to
the Theory of Definite Integrals. By George Boole, Esq.

458

461

On the Organization of the Brachiopoda. By Albany Hancock, Esq. 463
On the Placenta of the Elephant. By Prof. Richard Owen, F.R.S. 471
The Croonian Lecture.-On the Cause of the Rhythmic Motion of
the Heart. By James Paget, Esq., F.R.S.

On a new mode of forming Triethylamine. By A. W. Hofmann,
LL.D., F.R.S.

Contribution towards the History of Thialdine. By A. W. Hofmann,
LL.D., F.R.S. .

On the Action of Sulphuric Acid upon Anisic and Salicylic Acids.
By A. W. Hofmann, LL.D., F.R.S.

On the Separation of Iodine, Bromine, and Chlorine, and the com-
parative degree of Affinity of these Elements for Silver; with
some Analyses of their Combinations with that Metal, occurring
in Chili. By Frederick Field, Esq.

Note on the Density of Ozone. By Thomas Andrews, M.D., F.R.S., and P. G. Tait, M.A..

473

489

491

494

496

498

Contributions towards the History of the Phosphorus-, Arsenic-, and Antimony-Bases. By A. W. Hofmann, Ph.D., LL.D., F.R.S. 500 On a New Series of Compounds derived from Ammonia and its Analogues. By Edward Frankland, Ph.D., F.R.S..

502 On a Class of Dynamical Problems. By Arthur Cayley, Esq., F.R.S. 506 Remarks on a New Class of Alcohols. (Second Note.) By A. W. Hofmann, LL.D., F.R.S., and Auguste Cahours, F.C.S. Photo-chemical Researches. By Prof. Bunsen and Henry E. Roscoe, B.A., Ph.D. (Third Communication.) The Optical and Chemical Extinction of the Chemical Rays

On the Causes and Phenomena of the Repulsion of Water from the
Feathers of Water-Fowl and the Leaves of Plants. By George
Buist, D.C.L., F.R.S.

511

516

520

Researches on the Phosphorus-Bases. By A. W. Hofmann, LL.D.,
F.R.S., and Auguste Cahours, F.C.S.

523

Report of Proceedings of the Astronomical Expedition to Teneriffe, in 1857. By Prof. C. Piazzi Smyth

Account of the Construction of the New National Standard of
Length, and of its principal Copies. By G. B. Airy, Esq., F.R.S.,
Astronomer Royal

530

On the existence of the Decidua around the Ovum in Fallopian-Tube
Conception, &c. By Robert Lee, M.D., F.R.S.

534