Proceedings of the Royal Society of London

OF THE

GENERAL LIBRAR

University c

MICHIGAN

ROYAL SOCIETY OF
OF LONDON.

From January 10, 1856 to June 18, 1857 inclusive.

(BEING A CONTINUATION OF THE SERIES ENTITLED
"ABSTRACTS OF THE PAPERS COMMUNICATED TO
THE ROYAL SOCIETY OF LONDON.")

VOL. VIII.

LONDON:

PRINTED BY TAYLOR AND FRANCIS,

RED LION COURT, FLEET STREET.

MDCCCLVII.

Q 41

87'

78 V.8

1856-7

CONTENTS.

VOL. VIII.

&c.

On Insolinic Acid. By Augustus W. Hofmann, Ph.D., F.R.S.

page

On the Existence of Multiple Proportion in the quantities of Heat, or

equivalent alteration of internal space of bodies, caused by definite

changes of state as produced by Chemical Combination or other-

wise. By Thomas Woods, M.D.

Anatomical and Physiological Observations on the Organ of Vision,

for the purpose of ascertaining the alterations caused by section of

the Optic Nerve. By Augustus Waller, M.D., F.R.S. Part I..

On some of the Metamorphoses of Naphthalamine. By A. W. Hof-

mann, Ph.D., F.R.S. &c.

Account of Pendulum Experiments undertaken in the Harton Col-

liery for the purpose of determining the Mean Density of the Earth.

By G. B. Aíry, Esq., Astronomer Royal

Account of Pendulum Experiments undertaken in the Harton Col-

liery for the purpose of determining the Mean Density of the Earth.

By G. B. Airy, Esq., Astronomer Royal (concluded)

A Description of a new Sphygmoscope, an Instrument for indicating

the Movements of the Heart and Blood-vessels; with an Account

of Observations obtained by the aid of that Instrument. By S.

Scott Alison, M.D.

On the Vitality of the Ova of the Salmonidæ of different Ages. In

a Letter addressed to Charles Darwin, Esq., M.A., V.P.R.S. &c.

By John Davy, M.D., F.R.S. Lond. and Edinb., &c.

Note on a new Class of Alcohols. By M. Aug. Cahours and A. W.

Hofmann, Ph.D., F.R.S. &c. Communicated by Dr. Hofmann

On Periodical Laws discoverable in the Mean Effects of the Larger

Magnetic Disturbances. No. III. By Colonel Edward Sabine,

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

On the Thermal Effects of Fluids in Motion. By Professor William

Thomson, F.R.S., and J. P. Joule, Esq., F.R.Š.

page 41

On the Bromide of Titanium. By F. P. Duppa, Esq. Communicated

by A. W. Hofmann, Ph.D., F.R.S. &c.

Account of the Observations and Computations made for the purpose

of ascertaining the Amount of the Deflection of the Plumb Line

at Arthur's Seat, and the Mean Specific Gravity of the Earth;

with an Account of the observed and computed Amount of the

Local Attraction at Arthur's Seat and at the Royal Observatory

at Edinburgh. Communicated by Lieut.-Col. James, R.E., F.R.S.

&c.

On some New Colouring Matters. By Arthur H. Church and Wil-

liam H. Perkin. Communicated by A. W. Hofmann, Ph.D.,

F.R.S. &c.

Letter from Professor Hansteen of Christiania, For. Mem. R.S.

The Bakerian Lecture.-On the Electro-dynamic Properties of Metals.
By Prof. William Thomson, F.R.S..

Supplement to the "Account of Pendulum Experiments undertaken

in the Harton Colliery;" being an Account of Experiments under-

taken to determine the Correction for the Temperature of the

Pendulum. By G. B. Airy, Esq., Astronomer Royal.

On the Mathematical Theory of the Stability of Earthwork and Ma-

sonry. By W. J. Macquorn Rankine, Esq., C.E., F.R.S.

Letter from James P. Joule, Esq., F.R.S., in reference to the paper

of Dr. Woods read on the 10th of January 1856.

On the Presence of Fibrils of Soft Tissue in the Dentinal Tubes. By

John Tomes, Esq., F.R.S.

On the Structure and Development of the Cysticercus Cellulose, as

found in the Pig. By George Rainey, Esq. .

On the Diœcious Character of the Rotifera. By Philip Henry Gosse,

Esq.

On the Diœcious Character of the Rotifera. By Philip Henry Gosse,

Esq. (concluded)

Account of Experiments on the Vagus and Spinal Accessory Nerves.

By Augustus Waller, M.D., F.R.S..

Extract of a Letter from P. A. Secchi, containing explanatory re-

marks on a Drawing of the Lunar Spot Copernicus, presented by

him to the Royal Society

Notes on the Drawing of Copernicus,' presented to the Royal Society

by P. A. Secchi. By John Phillips, Esq., F.R.S.

A Third Memoir on Quantics. By Arthur Cayley, Esq., F.R.S. .

Eem entary Considerations on the subject of Rotatory Motion. By

W. Gravatt, Esq., F.R.S.

On the Condition of the Oxygen absorbed into the Blood during

Respiration. By George Harley, M.D..

page

Description of the Observatory of the Collegio Romano at Rome. By

P. A. Secchi

Elements of a Mathematical Theory of Elasticity. By Prof. Wil-

liam Thomson, F.R.S.

On the Construction of the Imperial Standard Pound, and its Copies

of Platinum; and on the comparison of the Imperial Standard

Pound with the Kilogramme des Archives. By W. H. Miller, M.A.,

F.R.S., Professor of Mineralogy in the University of Cambridge.

-Part I..

On various Phenomena of Refraction through Semi-lenses or Prisms,

producing anomalies in the illusion of Stereoscopic Images. By

A. Claudet, Esq., F.R.S.

A Memoir upon Caustics. By Arthur Cayley, Esq., F.R.S.

104

110

On the Figure, Dimensions, and Mean Specific Gravity of the Earth,

as derived from the Ordnance Trigonometrical Survey of Great

Britain and Ireland. Communicated by Lieut.-Colonel James,

R.E., F.R.S. &c., Superintendent of the Ordnance Survey.

On the Application of Photography to the physiognomic and mental

phenomena of Insanity. By Hugh W. Diamond, M.D.

111

117

On the Problem of Three Bodies. By the Rev. J. Challis, M.A.,

F.R.S., F.R.A.S. .

117

On some of the Products of the Distillation of Boghead Coal at low

temperatures. By G. Greville Williams, Esq.

119

On Peristaltic Induction of Electric Currents. By Professor William

Thomson, F.R.S.

Experimental Researches on the Functions of the Mucous Membrane

of the Gall-bladder, principally with reference to the Conversion

of Hepatic into Cystic Bile. By George Kemp, M.D..

Annual General Meeting for the Election of Fellows.

On the Construction of the Imperial Standard Pound, and its Copies

of Platinum; and on the comparison of the Imperial Standard

Pound with the Kilogramme des Archives. By W. Î. Miller, M.A.,

F.R.S., Professor of Mineralogy in the University of Cambridge.-

Part II.

On the Determination of Unknown Functions which are involved

under Definite Integrals. By J. Gomes de Souza, Professor of

Mathematics in the Military Academy of Rio Janeiro.

On the Detection of Strychnia by the formation of Iodo-strychnia.

By Dr. W. Bird Herapath .

149

Dynamical Illustrations of the Magnetic and the Helicoidal Rotatory

Effects of Transparent Bodies on Polarized Light. By Prof. W.

Thomson, F.R.S..

150

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