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relations of the generating and conducting surfaces ; addressed to

Michael Faraday, Esq. D.C.L. F.R.S. &c. By John Frederic

Daniell, Esq. F.R.S. Professor of Chemistry in King's College,

London

Researches towards establishing a Theory of the Dispersion of Light.

-No. IV. By the Rev. Baden Powell, M.A. F.R.S. Savilian Pro-

fessor of Geometry in the University of Oxford

47

Experimental Researches in Electricity.—Twelfth Series. By Michael

Faraday, Esq. D.C.L. F.R.S. &c....

47

Proposal for a new method of determining the Longitude, by an ab-

solute Altitude of the Moon. By John Christian Bowring, Esq.... 52

An Inquiry into a new Theory of Earthy Bases of Vegetable Tissues.

By the Rev. J. B. Reade, M.A. F.R.S.

52

Description of a new Tide-Gauge, constructed by T. G. Bunt, and

erected on the Eastern bank of the River Avon, in front of the Hut.

well House, Bristol, in 1837

53

On the Régar or Black Cotton Soil of India. By Capt. Newbold,

Aide-de-Camp to Brigadier-General Wilson.

53

Experimental Researches in Electricity.—Thirteenth Series. By Michael

Faraday, Esq. D.C.L. F.R.S. &c.......

54

An Account of a line of Levels, carried across Northern Syria, from

the Mediterranean Sea to the River Euphrates. By William Taylor

Thomson, Esq., with Geological and Botanical Notes, by William

Ainsworth, Esq.

Supplementary Note to the Thirteenth Series of Experimental Re-

searches in Electricity. By Michael Faraday, Esq. D.C.L. F.R.S.
&c.

58

A Letter addressed to P. M. Roget, M.D. Secretary to the Royal

Society, by James Ivory, Esq. F.R.S., accompanying a paper on

Astronomical Refractions

59

On the Theory of Astronomical Refractions. By James Ivory, Esq.

K.H. M.A. F.R.S. &c.

60

Remarks on the Theory of the Dispersion of Light, as connected with

Polarization. By the Rev. Baden Powell, M.A. F.R.S. Savilian

Professor of Geometry in the University of Oxford

64

An Experimental Inquiry into the influence of Nitrogen on the Growth

of Plants. By Robert Rigg, Esq.............

66

Researches in Rotatory Motion. By A. Bell, Esq.

66

Researches on Suppuration. By George Gulliver, Esq., Assistant

Surgeon to the Royal Regiment of Horse Guards........

On the structure of the teeth, the vascularity of those organs, and

their relation to bone. By John Tomes, Esq.........

70

On the evolution of Nitrogen during the growth of plants, and the

sources from whence they derive that element. By Robert Rigg, Esq. 70

On the decussation of fibres at the junction of the Medulla Spinalis

with the Medulla Oblongata. By John Hilton, Esq.

Description of a self-registering Thermometer and Barometer invented

.........

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by the late James Coggan, Esq., and bequeathed by him to the

Royal Society. By Roderick Impey Murchison, Esq. F.R.S.

V.Þ.G.S. &c.

On the action of light upon the colour of the River Sponge. By

John Hogg, M.A. F.L.S. C.P.S. &c. Fellow of St. Peter's College,

Cambridge

72

Researches on the Tides.-Ninth Series. On the deduction of the

Laws of the Tides, from short Series of Observations. By the Rev.

W. Whewell, M.A. Trin. Coll., Cambridge

72

Researches in Embryology:- First Series. By Martin Barry, M.D.

.–

F.R.S.E. Fellow of the Royal College of Physicians in Edinburgh 73

Contributions to the Physiology of Vision. By Charles Wheatstone,

Esq. F R.S. Professor of Experimental Philosophy in King's Col-

lege, London.-Part the First. On some Remarkable and hitherto

unobserved Phenomena of Binocular Vision

76

Experimental Researches in Electricity.- Fourteenth Series. On the

general nature and relation of the Electric and Magnetic Forces.

By Michael Faraday, Esq. D.C.L. F.R.S. &c.

77

Experiments on the Vibration of the Pendulum. By W. J. Frodsham. 78

An Account of some Experiments on the Blood in connexion with the

Theory of Respiration. By John Davy, M.D. F.R.S. Assistant

Inspector of Army Hospitals.........

78

On the Geometrical Forms of Turbinated and Discoid Shells. By the

Rev. H. Moseley, Professor of Natural Philosophy and Astronomy

in King's College, London

On the relative attractions of Sulphuric Acid for water, under par-

ticular circumstances : with suggestions of means of improving the

ordinary process of manufacturing Sulphuric Acid. By Henry

Hugh Watson, Esq. Corresponding Member of the Manchester

Philosophical Society......

81

Discovery of the Source of the Oxus. By Lieut. Wood, of the Indian

Navy.

83

On the State of the Interior of the Earth. By W. Hopkins, Esq.

M.A. F.R.S. F.R.A.S. &c...........

83

Experimental Researches in Electricity.—Fifteenth Series. Note of the

Character and Direction of the Electric Force of the Gymnotus.

By Michael Faraday, Esq. D.C.L. F.R.S. &C.........

111

On the Curvature of Surfaces. By John R. Young, Esq............... 112

Experiments made on a piece of Peña silver, saved from the Lady

Charlotte, wrecked on the coast of Ireland in December 1838, as

to its capability of holding water. By W. D. Haggard, Esq... puge 119

On the Application of the Conversion of Chlorates and Nitrates into

Chlorides, and of Chlorides into Nitrates, to the determinations of

several equivalent numbers. By Frederick Penny, Esq............... 119

Some account of the Art of Photogenic Drawing, or the Process by

which Natural Objects may be made to delineate themselves with-

out the aid of the Artist's Pencil. By H. F. Talbot, Esq. F.R.S.... 120

Notice of a Shock of an Earthquake felt in the Island of St. Mary's,

one of the Scilly Islands, on the 21st of January, 1839, in a letter ad-

dressed to the Secretary. By the Rev. George Wordley .... 122

Researches on the Chemical Equivalents of certain Bodies. By

Richard Phillips, Esq. F.R.S.

123

Some Account of the Hurricane of the 7th of January, 1839, as it was

experienced in the neighbourhood of Dumfries, in a letter addressed

to P. M. Roget, M.D. Secretary to the Royal Society. By P. Gar-

den, Esq..........

123

An Account of the Processes employed in Photogenic Drawing, in a

letter to S. Hunter Christie, Esq. Sec. R.S. By H. Fox Talbot,

Esq. F.R.S......

124

A Description of a Hydropneumatic Baroscope. By J. T. Cooper, Esq.

Lecturer on Chemistry

126

Observations on the Parallel Roads of Glen Roy, and of other parts

of Lochaber, with an attempt to prove that they are of Marine

Origio. By Charles Darwin, Esq. M.A. F.R.S. Sec. Geological

Society..

127

On the Male Organs of some of the Cartilaginous Fishes. By John

Davy, M.D. F.R.S. Assistant Inspector of Army Hospitals. 129

Researches in Physical Geology.-Third Series. On the Phænomena

of Precession and Nutation, assuming the interior of the earth to be

a heterogeneous fluid. By W. Hopkins, Esq. M.A. F.R.S. &c. ... 129

An Experimental Inquiry into the Formation of Alkaline and Earthy

Bodies with reference to their presence in Plants, the Influence of

Carbonic Acid in their generation, and their equilibrium of this

gas in the atmosphere. By Robert Rigg, Esq.

130

Note on the Art of Photography, or the application of the Chemical

Rays of Light to the purposes of Pictorial Representation.

John F. W. Herschel, Bart. K.H. V.P.R.S. &c ....

131

Description of a Compensating Barometer, adapted to Meteorological

purposes, and requiring no corrections either for Zero, or for Tem-

perature. By Samuel B. Howlett, Esq., Chief Military Draftsman,

Ordnance.....

133

An Account of the fall of a Meteoric Stone in the Cold Bokkeveld,

Cape of Good Hope. By Thomas Maclean, Esq. F.R.S. &c. in a

letter to Sir John F. W. Herschel, Bart. V.P.R.S.

134

Chemical Account of the Cold Bokkeveld Meteoric Stone. By Michael

Faraday, Esq. D.C.L. F.R.S. &c., in a letter to Sir John F. W.

Herschel, Bart. V.P.R.S. &c.

134

Note respecting a new kind of Sensitive Paper. By Henry Fox Talbot,

Esq. F.R.S......

On a new equi-atomic compound of Bicyanide with Binoxide of Mer-

cury. By James F. W. Johnston, Esq. F.R.S..........

135

On the Constitution of the Resins.—Part 1. By James F. W. John-

ston, Esq. F.R.S.......

.... 135

Researches in Embryology.--Second Series. By Martin Barry, M.D.

F.R.S.E. Fellow of the Royal College of Physicians in Edinburgh.. 136

On the Motion of the Blood. By James Carson, M.D. F.R.S......... 140

Account of Experiments on Iron-built Ships, instituted for the pur-

pose of discovering a Correction for the Deviation of the Compass

produced by the Iron of the Ships. By George Biddell Airy, Esq.

M.A. F.R.S. Astronomer Royal

141

On the Visibility of certain Rays beyond the Ordinary Red Rays of

the Solar Spectrum. By J. S. Cooper, Esq., in a letter to Michael

Faraday, Esq. D.C.L. F.R.S. &c........

146

Fifth letter on Voltaic Combinations; with some account of the

effects of a large Constant Battery : addressed to Michael Faraday,

Esq. D.C.L. F.R.S. Fullerian Professor of Chemistry in the Royal

Institution of Great Britain. By John Frederic Daniell, Esq. F.R.S.

Professor of Chemistry in King's College, London

147

An Experimental Inquiry into the Influence of Nitrogen in promoting

Vegetable Decomposition, and the connexion of this process with

the Growth of Plants. By Robert Rigg, Esq......

148

Experiments on the Chemical Constitution of several bodies which un-

dergo the Vinous Fermentation, and on certain results of the Che-

mical Action. By Robert Rigg, Esq. F.R.S.

149

Researches on the Tides.-Tenth Series. On the Laws of Low Water

at the Port of Plymouth, and on the permanèncy of mean water.

By the Rev. W. Whewell, B.D. F.R.S. Fellow of Trinity College,

Cambridge

152

Researches on the Tides.-Eleventh Series. On certain Tide Obser-

vations made in the Indian Seas. By the Rev. W. Whewell, B.D.

F.R.S. Fellow of Trinity College, Cambridge

152

On the Electrolysis of Secondary Compounds. In a letter addressed

to Michael Faraday, Esq. D.C.L. F.R.S. Fullerian Professor of

Chemistry in the Royal Institution of Great Britain, &c. By John

Frederic Daniell, Esq. F.R.S. Professor of Chemistry in King's Col.

lege, London

153

Experimental Researches on the mode of operation of Poisons. By

James Blake, Esq.

155

Inquiries concerning the Elementary Laws of Electricity.—Third

Series. By W. Snow Harris, Esq. F.R.S..........

On the Conditions of Equilibrium of an Incompressible Fluid, the

particles of which are acted upon by Accelerating Forces. By James

Ivory, Esq. K.H. M.A. F.R.S. &c.

157

Report of a Geometrical Measurement of the Height of the Aurora

Borealis above the Earth. By the Rev. James Farquharson, LL.D.

F.R.S.

162

their superiority to the double eye-piece of Huyghens. By the Rev.

J. B. Reade, M.A. F.R.S.............

195

Meteorological Observations made between October, 1837, and April,

1839, at Alten in Finmarken. By Mr. S. H. Thomas, chief mining

agent at the Alten Copper Works. Presented to the Royal Society

by John R. Crowe, Esq. Her Britannic Majesty's Consul at Fin-

marken........

195

On Nobili's Plate of Colours; in a letter from J. P. Gassiot, Esq.,

addressed to J. W. Lubbock, Esq. V.P. and Treasurer R.S.......... 195

Geographical position of the principal points of the Triangulations of

the Californias and of the Mexican Coasts of the Pacific, with the

heights of the principal points of that part of the Cordilleras. By

the Comte Vincent Piccolomini ; in a letter addressed to Sir John

F. W. Herschel, Bart. V.P.R.S.

196

Report on the co-operation of the Russian and German observers, in

a system of simultaneous Magnetical Observations. By the Rev.

H. Lloyd, F.R.S., in a letter addressed to Sir John F. W. Herschel,

Bart. V.P.R.S...........

197

On Magnetical Observations in Germany, Norway, and Russia. By

Major Sabine, R.A. V.P.R.S., in a letter to Baron von Humboldt,

For. Mem. R.S., dated Oct. 24th, 1839 ......

..... 197

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