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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.,


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. .


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.


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

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


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.


On the Geometrical Isomorphism of Crystals. By Henry James

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


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


Description of an Instrument for registering changes of Temperature.

By Balfour Stewart, Esq.


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.


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

By Prof. Albert Kölliker of Wurzburg .


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

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


Electro-Physiological Researches.—Tenth Series. Part I. By

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


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


On the Aurora. By Reuben Phillips, Esq. .


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

General Edward Sabine, R.A., D.C.L., Treas. and V.P.R.S. . 216

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

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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.


Experimental Researches on the Strength of Pillars of Cast Iron.

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


Memoir on the Symmetric Functions of the Roots of certain Systems

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


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

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


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

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


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..


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

Fourth and Fifth Degrees. By Arthur Cayley, Esq., F.R.S. 325

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

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


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

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


On some of the Products of the Destructive Distillation of Boghead

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


On the Optical Characters of certain Alkaloids associated with

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

W. B. Herapath, M.D.


On the Nervous System of Lumbricus terrestris. By J. Lockhart
Clarke, Esq., F.R.S.


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.


On the Photography of the Moon. By William Crookes, Esq. 363

Researches on the Reproductive Organs of the Annelids. By Thomas

Williams, M.D., F.L.S., Physician to the Swansea Infirmary. 371

Addition to a Memoir on the Determination of Unknown Functions

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



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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.

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.


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. .. 396

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. 416

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


Description of a Species of Asteroid Polypes, probably forming the

type of a new genus of Alcyonida. 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. ·


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.


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. .


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

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


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 Plucker,

of Bonn, For. Memb. R.S.


Inquiries into the Quantity of Air inspired throughout the Day and

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

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






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page 455

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On the Plasticity of Ice, as manifested in Glaciers. By James

Thomson, A.M., C.E.
On the part which the Silicates of the Alkalies may play in the
Metamorphism of Rocks. By T. Sterry Hunt, Esq. .

458 On the Comparison of Transcendents, with certain applications to

the Theory of Definite Integrals. By George Boole, Esq. 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.

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

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

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

494 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.

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

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. . . 511 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

... 516 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.

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

528 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.


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