ADVANCEMENT OF SCIENCE.

The next ANNUAL MEETING of this ASSOCIATION will be held at EDINBURGH, commencing on Wednesday 2nd, and continuing till Wednesday, 9th August, 1871.

The Excursions will take place on Thursday, 10th August, 1871, the particulars of which will be duly notified.

President-Elect-Professor Sir WILLIAM THOMSON, M.A., D.CL, LL.D.,
F.R.S.L. & E., Professor of Natural Philosophy in the University of
Glasgow.

New Members and Associates are elected by the Executive Committee at
Edinburgh, on the following conditions:-

New Annual Subscribe-s, for a payment of £2 for the first year.
Associates for this meeting only, for a payment of £1.

New Life Members, for a composition of 10.

Ladies may become Members or Associates on the same terms as Gentlemen, and Ladies' Tickets (transferable to Ladies only) may be obtained by Members on payment of £1.

Gentlemen who have in any former year been admitted Members of the Association, may on this occasion renew their Membership, without being called upon for arrears, on payment of £1.

Information about local arrangements and facilities afforded by the Railway and Steamboat Companies will be obtained on application to the Local Secretaries, at their Chambers, 14, Young St. eet, Edinburgh.

ROYAL INSTITUTION OF GREAT
BRITAIN,

Albemarle Street, W.

The next ACTONIAN PRIZE, or PRIZES, will be awarded in the year 1872 to an Essay, or Essays, illustrative of the Wisdom and Beneficence of the Almighty.

The subject is "The Theory of the Evolution of Living Things." The
Prize Fund is Two Hundred Guineas, and it will be awarded as a single
Prize, or in sums of not less than One Hundred Guineas each, or withheld
altogether, as the Managers in their judgment shall think proper.

Competitors for the Prize are requested to send their Essays to the Royal
Institution, on or before June 30, 1872, addressed to the Secretary; and the
adjudication will be made by the Managers in December, 1872.
H. BENCE JONES, Hon. Sec. R.I.

July, 1871.

SCHOOL OF CHEMISTRY, 20, GREAT MARLBOROUGH STREET, LONDON, W.

DIRECTED BY ARTHUR VACHER.

ROYAL COUNCIL of EDUCATION.EXPERIMENTAL LECTURES and Demonstrations on the SCIENTIFIC SUBJECTS of the above examinations can be attended in classes or privately, at the BERNERS COLLEGE Laboratory and Class-rooms. Telegraphy and Photography especially considered. Fees moderate.-Apply to Prof. E. V. GARDNER, F.E.S., F.S.A., 44 Berners Street. W.

[All Rights are Reserved

Natural History and Early-Printed Books, Original Blake Drawings and
Cruikshank's Collection of Foreign and British Birds, Stone Implements,
Jade Savage Arms and Musical Instruments, Barbaric Carvings, "Lusus
Natura," Superb Collection of Agates and Agate Geodes, Heads of
Horns, Fine Minerals, Fossils and Rare Shells. Also handsome Cabi-
nets, formerly the property of the late Earl of Derby, Duchess of Portland,
Mr. Buckland, and many other Collectors.

MESSRS. THURGOOD AND GILES will SELL BY AUCTION at the "Palace Royal," 7, Argyll Street, Regent Street, on the 31st July, Aug. 1, 2, and 3, commencing at One o'clock precisely each day, a very extensive collection of the above, which will be on view 2 days before the first day's Sale. Admission by card or catalogue only, to be obtained of the Auctioneers, 123, Chancery Lane, W.C.

NEW SOLAR EYE-PIECE.-This contrivance, proposed by Prof. Pickering, is the most efficient yet made; the greater portion of the Sun's rays are allowed to pass away in a direct line with the tube of the telescope; the small amount of light reflected is polarised, and the quantity of light received by the eye can be regulated by turning an analysing prism, which is placed over the eye-piece. Price for Telescopes up to 6in. diameter, £5; above 6in. diameter, 10.

JOHN BROWNING, Optical and Physical Instrument Maker to the Royal
Observatory, &c., &c., 111, Minories, London, E. Prize Medal 1862.
Established Ico years.

MICROSCOPIC MARVELS.- Cabinet Slides of African and Peruvian Sand, which consists of an infinite variety of Coloured gem-shaped Minerals, and the MICROSCOPIC RAINBOW, an interesting and brilliant combination of minute ever changing colours. These specimens are admitted to be the gems of a collection. 25. each, or both 42 stamps, free. Prepared only by F. WATSON, 9, Warwick Place, Leeds.

Now ready, price Half-a-Crown, Boards, SATURDAY AFTERNOON RAMBLES ROUND LONDON: RURAL AND GEOLOGICAL. By HENRY WALKER, with an account of the Ancient Thames Valley, its Origio, Climate, and Zoology.

"To those whose love of Natural History leads them into the field, this small volume will prove a useful companion and guide, as it gives in a very able and pleasant manner much useful information respecting the more favoured spots, easily accessible by the naturalists around London. . . . . The Thames Valley is fully described in the work before us."-Nature.

London: HODDER & STOUGHTON, 27, Paternoster Row.

Just published, Part II. "Heat," price 45. 6d.
PHILOSOPHY:

NATURAL

An Ele

mentary Treatise. By PROFESSOR DESCHANEL, of Paris. Translated and edited, with extensive additions, by PROFESSOR EVERETT, D.C.L., of Queen's College, Belfast. In Four Parts, medium 8vo. Illustrated by 719 Engravings on Wood. Part I. Mechanics, Hydrostatics, and Pneumatics, 4s. 6d. Part II. Heat, 45. 6d.

"We have no work in our own scientific literature to be compared with it. It will form an admirable text-book for special science classes in schools.--Quarterly Journal of Science.

"In addition to being a good class-book, it is well adapted for private reading, as the style is good and the examples remarkably well chosen."Student.

London. BLACKIE & SON, 44, Paternoster Row.

SCIENTIFIC PUBLICATIONS.

Third Edition, 8vo, 7s. 6d.

NATURE

PROFESSOR HUXLEY'S LAY SER-
MONS, ADDRESSES, and REVIEWS.

ESSAYS SELECTED

FROM

FESSOR HUXLEY'S "Lay Sermons, Addresses. and Reviews."
8vo, 2s.

PRO-
Crown

[July 13, 1871

Now ready, Illustrated, price 75.

THE JOURNAL OF THE ANTHRO

POLOGICAL INSTITUTE of GREAT BRITAIN and IRELAND.

No. 1, with Appendix, forming a double number of 280 pages, containing memoirs by the President (Sir. J. Lubbock, Bart., M.P., F.R.S.), Dr. Beddoe, Dr. Bleck, &c., &c.; and Reports on the Settle Cave Exploration, by W. Boyd Dawkins, Esq., M.A., F.R.S.; on the Prehistoric Antiquities of Dartmoor, by C. Spence Bate, Esq, F.R.S., and on the Anatomical writings of Prof. L. Calon, by J. Barnard Davis, M.D., F.R.S., &c. London: TRUBNER & CO., 60, Paternoster Row.

REV.

GEORGE

HENSLOW,

THE
M.A., F.L.S., F.G.S., Lecturer on Botany to St. Bartholomew's Hospital,
By MINERALOGY, and BOTANY.
gives Private Instruction in GEOLOGY, PHYSICAL GEOGRAPHY,

ON THE GENESIS OF SPECIES.
ST. GEORGE MIVART, F.R.S. With Numerous Illustrations. Crown
8vo, cs.

"Mr. Mivart has succeeded in producing a work which will clear the ideas
of biologists and theologians, and which treats the most delicate questions in
a manner which throws light upon most of them, and clears away the barriers
of intolerance on each side."-British Medical Journal.

BEGINNINGS

THE
cluding an account of the present State of the "Spontaneous Generation'
Controversy. By H. CHARLTON BASTIAN, M.D., F.R.S., Professor
of Pathological Anatomy in University College, London. [In the Press.

BODY AND MIND: An Inquiry into their Connection and Mutual Influence, specially in reference to Mental Disorders; being the GULSTONIAN LECTURES for 1870, delivered before the Royal College of Physicians. With Appendix. By HENRY MAUDSLEY, M.D., London. Crown 8vo, 5s.

ON

A TREATISE
Designed for the Use of Students in the University. By G. B. AIRY, As-
MAGNETISM.-
tronomer Royal. Crown 8vo, gs. 6d.

ON

SOUND AND

ATMOSPHERIC

VIBRATIONS. With the Mathematical Elements of Music.-Designed for the Use of Students in the University. By G. B. AIRY, Astronomer Royal. Second Edition, revised, now ready. Crown 8vo, gs.

Second Edition, with the most Recent Discoveries and Additional Illustrations
PROFESSOR ROSCOE'S "SPECTRUM
ANALYSIS." Lectures delivered in 1868. With Appendices, Chromo-litho-
graphs, Maps, and upwards of 70 Illustrations. Medium 8vo, 215.

HABIT AND INTELLIGENCE, IN

THEIR CONNECTION WITH THE LAWS OF MATTER AND
FORCE. A Series of Scientific Essays. By JOSEPH JOHN MURPHY.
Two vols. 8vo, 16s.

FORCE AND

TION AND REPULSION. The Radical Principles of Energy graphi-
NATURE. ATTRAC-
cally discussed in their
Development. By C. F. WINSLOW, M.D. 8vo, 145.
Relations to Physical and Morphological

FIRST PRINCIPLES of
PHILOSOPHY. By JOSIAH P. Cook, jun., Ervine Professor of Che-
CHEMICAL
mistry and Mineralogy in Harvard College. Crown 8vo, 125.

A HISTORY of CHEMICAL THEORY. From the Age of Lavoisier to the present time. By AD. WURTZ. Translated by H. WATTS, F.R.S. Crown 8vo, 6s.

PROBLEMS.

N.B.-FOURTEEN of the 35 Successful Candidates for the India Civil Service (18,1), as well as several of the year 1870, were prepared by him in those subjects, besides many of the non-successful.

The Rev. G. H.'s Lectures are well illustrated by the collections of Diagrams of the late Professors Henslow and Brayley (of Lond. Inst.), 17, Colville Terrace, West, Notting-hill, W.

A PRACTICAL TREATISE ON THE MANUFACTURE OF SOAPS, Illustrated by numerous Woodcuts and elaborate Working Drawings. By CAMPBELL MORFIT, M.D., F.C.S. Demy 8vo, pp. xii-270, cloth, price £2 12s. 6d.

London: TRUBNER & CO., 8 and 60, Paternoster Row.

QUARTERLY
No. XLIII. New Series, JULY, with Lithographic Plates and Wood
Engravings, price 45.
QUARTERLY JOURNAL OF MICRO-
SCOPICAL SCIENCE.

On the Colour of Leaves at Different Seasons of the Year. By H. C. Sorby,
F.R.S.

Note on Dr. Hinrich Nitsche's Paper on "Some Interesting Points concern-
ing the Mode of Reproduction of the Bryozoa." By the Rev. Thomas
Hincks, B.A.

On a Submersion Microscope. By R. E. Dudgeon, M.D.
Researches on the Development of the Gregarina. By Edouard van Beneden,
D.Sc. Professor of Zoology and Comparative Anatomy in the Univer-
sity of Liége.

Some Remarks on the Nerves of the Cornea of the Rabbit and Frog. By
H. N. Moseley, B.A., Radcliffe Travelling Fellow.

On the Embryology of Limulus Poylphemus. By A. S. Packard, jun, M.D.
Notes on Appendicularia and the Larval Condition of an Acanthocephaloid
Scolecid from the Coast of Portugal. By W. Saville Kent, F.Z.S.,
F. R. M.S., &c., of the Geological Department, British Museum.
An Improved Apparatus for Drawing with the Microscope. By E. T. New-
ton, H M. Geological Survey.
Examination of Two Soundings obtained in 62 and 68 Fathoms respectively,
latitude 41 deg. 52 min., longitude 9 deg. 8 min; and the Discovery of
Buccal Teeth in the Genus Fiaola. By John Denis Macdonald, MD,
F.R.S., Staff-Surgeon, H. M.S Lord Warden. Communicated by the
Director-General of the Medical Department of the Navy.

The Nature of Connective Tissue. By Dr. W. Krause, Professor in Got-
tingen.

Mobility of Spines on certain Insects' Eggs.

The Mouse's Ear as an Organ of Sensrtion.

QUARTERLY CHRONICLE OF MICROSCOPICAL SCIENCE.
PROCEEDINGS OF SOCIETIES.

J. & A. CHURCHILL, New Burlington Street.

By MACMILLAN'S
THIRD EDITION.

A PHYSICIAN'S
CHARLES ELAM, M.D., M.R.C.P.
Degenerations in Man-On Moral and Criminal Epidemics-Body v. Mind
Contents: Natural Heritage-On
Illusions and Hallucinations-On Somnambulism-Reverie and Abstrac-
tion. Crown 8vo, gs.

COMPARATIVE LONGEVITY in MAN AND THE LOWER ANIMALS. By E. RAY LANKESTER, B.A. Crown BYO, 4s. 6d.

HEREDITARY GENIUS.

An Inquiry

nto its Laws and Consequences. By FRANCIS GALTON, F.R.S. 8vo, 12s. "A most able and instructive book."-Times.

Mr. Darwin, in his "Descent of Man," says:-"We know through the admirable labours of Mr Galton that genius, which implies a wonderfully complex combination of high faculties, tends to be inherited."

MACMILLAN & CO., LONDON.

MAGAZINE.

No. 141. FOR JULY.

PRICE IS.

CONTENTS OF THE NUMBER.

1.-"Armgart :" a Tragic Poem. By George Eliot.
a." Patty." Chapters XXXVII.-XL.

3.-"How Literature may Illustrate History." By David Masson.
4.- Two Nights in a French Prison During the Civil War."
5. "Pope and Cowper.

By

"Pleasant Recollections of Fifty Years' Residence in Ireland.” John Hamilton, of St. Ernan's. Parts III. and IV. 7.-"Der Ruhm, or the Wreck of German Unity." The Narrative of a Brandenburger Hauptmann.

Volumes I. to XXIII. handsomely bound in cloth, price 7s. 6d.

each, now ready.

MACMILLAN & CO., LONDON.

Sold by all Booksellers, Newsagents, and at all Railway Stations.

THE BRITISH EXPEDITION IN ABYS Lithograph of the Solar Spectra. Twenty-Sixth Thousand. 18mo, 45. 6d.

CURRENT NUMBERS OF SCIENTIFIC

THE JOURNAL OF PHILOLOGY. THE MESSENGER OF MATHEMATICS.

Edited by W. G CLARK. M.A., Fellow of Trinity College, John E. B.
MAYOR. M.A., Fellow of St. John's College, W. ALDIS WRIGHT M.A,
Trinity College, Cambridge.

EXTRACT OF COCOA. harm from the use of this alterative and tonic medicine, but will gradually

OBSERVATORIES, EQUATORIAL TELESCOPES, ASTRONOMICAL CLOCKS, LEVELS, ETC.

Opticians to H.R.H. the late Prince Consort, the Royal Family, and Her Majesty's Home and Indian Governments
BUCKINGHAM WORKS, YORK.

Illustrated Catalogues of Observatories, Equatorial and all other descriptions of Telescopes, Astronomical Clocks, Theodolites, Levels,
Clinometers, Gold Band Aneroids, &c., manufactured by T. COOKE and SONS, may be had on application to the Works.

Printed by R. CLAY, SONS, & TAYLOR, at 7 and 8, Bread Street Hill, in the City of London, and published by MACMILLAN & Co.,

at the Office, 38, Bleecker Street, New York.—THURSDAY, July 13, 1871

The next ANNUAL MEETING of this ASSOCIATION will be held at EDINBURGH, commencing on Wednesday 2nd, and continuing till Wednesday, 9th August, 1871.

The Excursions will take place on Thursday, 10th August, 1871, the particulars of which will be duly notified.

President-Elect-Professor Sir WILLIAM THOMSON, M.A., D.CL, LL.D.,
F.R.S. L. & E., Professor of Natural Philosophy in the University of
Glasgow.

New Members and Associates are elected by the Executive Committee at
Edinburgh, on the following conditions:-

New Annual Subscribers, for a payment of £2 for the first year.
Associates for this meeting only, for a payment of £1.

New Life Members, for a composition of £10.

Ladies may become Members or Associates on the same terms as Gentlemen, and Ladies' Tickets (transferable to Ladies only) may be obtained by Members on payment of £1.

Gentlemen who have in any former year been admitted Members of the Association, may on this occasion renew their Membership, without being called upon for arrears, on payment of £1.

(All Rights are Reserved ZOOLOGICAL RECORD ASSOCIATION. This ASSOCIATION has been formed for the purpose of continuing the publication of the Record of Zoological Literature," commenced six years ago by Dr. Günther, F. R.S., who has resigned the Editorship to Professor Newton.

The "Record" consists of an Annual Volume, containing a very complete abstract of and index to the Zoological Literature of the preceding year, and its use has been so generally recognised that for the last four years the British Association has voted (on the unanimous recommendation of the Committee of the Biological Section) a liberal grant in its aid.

The Contributors to the forthcoming volume are:

Mammalia, Reptilia, and Pisces-Dr. Günther, F.R. S.
Aves-H. E. Dres er, F.Z.S., and R. B. Sharpe, F. L.S.

Mollusca, Molluscoidea, and Crustacea-Dr. E. von Martens, F.M.Z.S.
Arachnida and Myriopoda-Rev. O. Pickard-Cambridge, C. M.Z.S.
Coleoptera and Hymenoptera-E. C. Rye.

Lepidoptera-W F Kirby.

Diptera-G. H. Verrall.

Neuroptera and Orthoptera-R. M'Lachlan, F. L.S.

Rhynchota-John Scott.

Vermes-E. Ray Lankester.

Echinodermata, Colenterata, and Protozoa-Professor Traquair, M.D.

This Association consists of Members and Subscribers. The Members are liable to the extent of £5, in the event of the funds from all other sources not

Information about local arrangements and facilities afforded by the Rail-being equal to meet the Annual Expenditure.
way and Steamboat Companies will be obtained on application to the Local
Secretaries, at their Chambers, 14, Young Street, Edinburgh,

Notices of Papers proposed to be read must be sent to G. Griffith, M.A.,
Assistant General Secretary of the British Association, 14, Young Street,
Edinburgh, before 1st August.

SCHOOL OF CHEMISTRY,

20, GREAT MARLBOROUGH STREET, LONDON, W.

DIRECTED BY ARTHUR VACHER.

ROYAL COUNCIL of EDUCATION.EXPERIMENTAL LECTURES and Demonstrations on the SCIENTIFIC SUBJECTS of the above examinations can be attended in classes or privately, at the BERNERS COLLEGE Laboratory and Class-rooms. Telegraphy and Photography especially considered. Fees moderate.-Apply to Prof. E. V. GARDNER, F.E.S., F.S.A., 44 Berners Street. W.

ΤΟ MICROSCOPISTS.-Unmounted Microscopic Objects; lists on application. Colloid, Silica, &c.-Agent and Exporter, W. HOLMES, St. Faith's Street, Maidstone.

MICROSCOPIC MARVELS.- Cabinet Slides of African and Peruvian Sand, which consists of an infinite variety of Coloured gem-shaped Minerals and the MICROSCOPIC RAINBOW, an interesting and brilliant combination of minute ever changing colours. These specimens are admitted to be the gems of a collection. 25. each, or both 42 stamps, free.-Prepared only by F. WATSON, 9, Warwick Place, Leeds.

Subscribers pay annually on the 1st July Twenty Shillings, but incur no other liability.

Gentlemen wishing to join the Association as Members or as Subscribers are requested to communicate with the Secretary, H. T. Stainton, F. R.S., Mountsfield, Lewisham, near London, S. E.

Upwards of Eighty of the leading Zoologists of the country have joined the Association as Members.

NEW SOLAR EYE-PIECE.-This contrivance, proposed by Prof. Pickering, is the most efficient yet made; the greater portion of the Sun's rays are allowed to pass away in a direct line with the tube of the telescope; the small amount of light reflected is polarised analysing prism, which is placed over the eye-piece. Price for Telescopes and the quantity of light received by the eye can be regulated by turning an up to 6in. diameter, £5: above 6in. diameter, 10. JOHN BROWNING, Optical and Physical Instrument Maker to the Royal Observatory, &c., &c., 111, Minories, London, E. Prize Medal 1862, Established 100 years.