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MESSRS. MACMILLAN AND CO.'S NEW BOOKS. TIONAL LIFE AND CHARACTER: a Forecast. By Chas. H. Pearson,

late Minister of Education, Victoria. 8vo, ios. net. "IMES:—“A very remarkable and striking book. Mr. Pearson's speculations on the future of National Life and Character rtainly a notable sign of the times." PEAKER :-"A singularly learned, philosophical, and suggestive work." 'PECTATOR:-"A very remarkable work." IVERSITY AND CATHEDRAL SERMONS. By J. R. ILLINGWORTH, M.A., Author of “Sermons Preached in a College Chapel.” Crown 8vo, 55. TRODUCTORY MODERN GEOMETRY OF POINT, RAY, AND CIRCLE. By WILLIAM BENJAMIN SMITH, A.M., Ph.D., Professor of Mathematics and Astronomy in the University of the State of Missouri. Crown 8vo, Cloih, 5s. YSICS, ADVANCED COURSE. By GEORGE F. BARKER, Professor of Physics in the University of Pennsylvania. 8vo, Cloth, 21s. OLUTION AND MAN'S PLACE IN NATURE. By HENRY CALDERWOOD, LL.D., F.R.S E., Professor of Moral Philosophy in the University of Edinburgh. Crown 8vo, Cloth, 78. 6d. NEERS OF SCIENCE. By OLIVER LODGE, F.R.S., Professor of Physics in the Victoria University College, Liverpool. With Portraits and other Illustrations. Extra Crown 8vo, Cloth, 7s. 6d. course of lectures on the lives of epoch-making men, principally in the Department of Astronomy, giving an account of their and tracing their influence on the development of human thought. The first part of the course, called " From Dusk to Daylight," of nine lectures on the men from Copernicus to Newton inclusive, especially Tycho, Kepler, Galileo, Descartes, and aims at ring the scientific aspect of their work in a clear and intelligible manner with copious illustrations. The second part of the consists of nine lectures on such subjects as the Velocity of Light; Herschel and the Stars ; the discoveries of Astervids and of ve; Comets and Meteors ; and the Tides; with some biographical details and much scientific exposition addressed to persons try education. ATURE :-“Dr. Lodge has been able, by judiciously combining clear statements of scientific facts and laws wth interesting 11 details, to give his lectures all the charm of a romance. The book is an admirable introduction to the study of astronomy,

better gift for a beginner could well be chosen ; while to those to whom many of its details are already familiar, the
sque clearness with which they are presented will make their knowledge more real and more complete. The standard of
nce maintained in the lectures makes distinction difficult and invidious, or we would distinguish the lectures on Newton and
n tides as models of what such popular scientific expositions should be."
E CHEMICAL BASIS OF THE ANIMAL BODY. An Appendix to
Foster's " Text-book of Physiology." Fifth Edition. By A. SHERIDAN LEA, M.A., D.Sc., F.R.S., University
Lecturer in Physiology in the University of Cambridge ; Fellow of Caius College. 8vo, Cloth, 75. 6d.
ke following appendix has been written upon the same lines as in former editions, save that it has been enlarged, and in reality
istitutes a treatise on the chemical substances occurring in the animal body. As in former editions it is entirely the work of

Sheridan Lea.
ECTRICAL PAPERS. By Oliver HeavisIDE. 2 vols., 8vo, 30s. net.
EXT-BOOK OF TROPICAL AGRICULTURE. By H. A. ALFORD Nicholls,
M.D., F.L.S. With Illustrations. Crown 8vo, Cloth, 6s.
REVIEW OF THE SYSTEMS OF ETHICS FOUNDED ON THE
THEORY OF EVOLUTION. By C. M. WILLIAMS. Crown 8vo, 125. net.

THE SECOND VOLUME OF PROF. GRAY'S WELL-KNOWN WORK.
Ì THEORY AND PRACTICE OF ABSOLUTE MEASUREMENTS

ELECTRICITY AND MAGNETISM. By ANDREW GRAY, M.A., Professor of Physics in the University llege of North Wales. Vol. II., in two Parts, crown 8vo, 25s.

Vol. 1., already published, price 12s. 6d.

NEW WORK BY MR. R. B. HAYWARD. · ALGEBRA OF COPLANAR VECTORS AND TRIGONOMETRY. Jy R. BALDWIN HAYWARD, M.A., F.R.S., Senior Mathematical Master in Harrow School, formerly Fellow of t. John's College, Camlıridge. Crown 8vo, Clo:h, 8s, 6d. ITURH:-“This work is constructed on the methods of the school of mathematicians who derived their inspiration from hing of De Morgan, a school which is represented by many of the most influential of our recent writers on mathematical

It is intende i to occupy the place of the 'Trigonometry and Double Algebra,' published in 1819 and now a long time int, at the same time incorporating such improvements in elementary treatment as have been evolved out of half a century's in of the foundations of Algebra. Those who are acquainted with Mr. Hayward's other writings, such as his ‘Elements Geometry,' will expect a fresh and interesting treatment of his subject ; and they will not be disappointed. On turning pages we constantly come across elegant touches and happy turns of expression, and historical appreciations-the stuff ostitutes the basis of literary excellence in mathematical writings.

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LOUIS PASTEUR. WILLIAM HARVEY. Proof impressions of these, printed on India paper, may be had from the Publishers, price 5s. each; or 27 Portraits in a Handsome Portfolio for £7, carriage paid. The Portfolio may be had separately, price .

Cheques and Money Orders payable to MACMILLAN & CO., Proof Impressions of the Portrait of Sir ARCHIBALD GEIKIE, LL.D., F.R.S., issued with NATURE fe may be obtained from the Publishers at 5s. cach. N.B.—This Portrait is the first of a New Series.

OFFICE OF “NATURE," 29 BEDFORD STREET, STRAND. Printed by RICHARD CLAY AND SONS, LIMITED, at 7 and 8 Bread Street Hill, Queen Victoria Street, in the City of London, as Pet

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jun., and BE BRADFORD, Mr. Liber concluded in MAY

WANTED—"Nature."

ROYAL COLLEGE OF SURGEONS OF LONDON GEOLOGICAL FIELD CLAS ENGLAND.

A Course of Four Lectures will be delivered by Praf. H. G SRL LECTURES 1893.

F.R.S., on “The Fossil Reptiles of the Thames Basin, ** at the New

Hall, Farringdon Street, E.C., at 7 p.m., on FEBRUARY 7 Notice is tereby given that Prof. C. B. PLOWRIGHT will commence a following Tuesday Evenings. 'Course Tickets zs. each to be the course of Three Lectures on “ The Action of Fungi on the Human Body," Hon. Sec., Mr. J. H. HODD, 30 and 31 Hatton Garden, EC on MONDAY, FEBRUARY 6.

That Prof. H. J. CAMPBELL will then deliver Three Lectures on “Intestinal Parasites belonging to the Class Neuratoda," commencing on MONDAY, FEBRUARY 20.

A CHEMIST requires work as DEMOS That Prof. B. T. LOwne will deliver Three Lectures on "The Physiology STRATOR or as ASSISTANT in RESEARCH LABORATORY of the Respiration, Circulation, and Nervous System of some Invertebrata," has had Practical Experience in Research, Analytical, ad commencing on MONDAY, FEBRUARY 27.

logical Laboratories. He is a Certificated Student of the T And that Prof. CHARLES STEWART will deliver Nine Lectures on "The College, Finsbury, having worked there four years, during Physiological Series of Comparative Anatomy in the Museum of the College," time he assisted in Teaching. He has a thorough knowleda commencing on MONDAY, MARCH 6.

ganic, but especially of Organic Chemistry.-Adufress, R.C.T.I The Course of Lectures will be concluded in MAY and JUNE by 6 Gower Street, London, W.C. Dr. J. Rose BRADFORD, Mr. J. H. TARGETT, and Profs. J. HUTCHINSON, jun., and BERNARD Pitts.

The Lectures will be delivered on MONDAYS, WEDNESDAYS, and FRIDAYS at 5 o'clock p.m. precisely each day.

WANTED.-A Resident Curator, Meteor: Fellows and Members of the College are invited to attend. Gentlemen, LOGICAL OBSERVER, and CARETAKER for the Xis ! not Fellows or Members of the College, will be admitted on presentation of Library Buildings of the Royal Institution of Cornwall, In Su their private visiting card at the door of the Theatre.

$50 per Annum, with Rooms, Coal, and Gas Applic EDWARD TRIMMER, Secretary.

cates' own handwriting, stating Age and Scientific qualifica. January 28, 1893.

Testimonials and References, to be forwarded, aut late

RUARY 14, to MAJOR PARKYN, Truro.
ST. THOMAS'S HOSPITAL MEDICAL
SCHOOL,

TELESCOPES FOR SALE,

Two very fine reflectors by Cook, diameter of mirror, 81 by ob ALBERT EMBANKMENT, LONDON, S.E. tively, perfect condition. Apply by letter-Mr. H., Mits TWO NATURAL SCIENCE SCHOLARSHIPS of £150 and 660

Cadogan Square. respectively, open to First-year Students on entrance in OCTOBER

Special Classes in CHEMISTRY and PHYSICS, BOTANY and
ZOOLOGY, are held throughout the Year, and may be joined at any time.

Free Scholarships are given to distinguished Pupils of MERCHANT
TAYLORS' SCHOOL, the CITY OF LONDON SCHOOL, and EPSOM Nos, 427, 428, 472, and November 14, 1878. Nos 613 6
COLLEGE.

No. 651; 1882. No. 705 i 1883. Price offered by F. AC B
Other Scholarships and Prizes of the Value of upwards of £300, the Mead Elmfield, Stoneygate, Leicester.
Medal for Medicine, and the Cheselden Medal for Surgery are awarded
annually. The Solly Medal and Prize, biennially, for Surgical Reports.

Prospectuses and all Particulars may be obtained from the Medical Secretary, Mr. GEORGE RENDLE.

To Collectors and Buyers of Precious at G. H. MAKINS, Dean. Fancy Stones.-R. C. NOCKOLD, Diamond and Oriental Son

chant, 12 Frith Street, Soho, W., has a very large assort s

men Stones, cut and uncut. Inspection invited. PENYWERN HOUSE MILITARY AND ENGINEERING COLLEGE,

is. id. new Set of Byron, Shelley, Kears 2 PENYWERN ROAD, EARL'S COURT, S.W.

“Prize Essays," with Portrait of Foundress and "Gosip !!

Essay Circular send addressed halfpenny wrapper to R C Principal-G. W. DE TUNZELMANN, B.Sc., M.I.E.E.

SHAY, Bwlch, Breconshire. Telegrams—" Tunzelmann, London." PUBLIC SERVICE AND UNIVERSITY DEPARTMENT.–For students preparing THE CRY OF THE CHILDREN.-AX for the various branches of the Public Service or for Scholarships at, or

essay on Education by A Free Lance, Author of “On the Oro entrance into, the Universities and Hospitals.

of Science" "He will receive in many quarters ceasure we a ENGINEERING DEPARTMENT.-The Complete Courses qualify Students

rank as the highest praise(Chemical Nors). Paper Caves for entry into Cooper's Hill, the Central Institution, the Royal College of

net (post-free). WILLIAMS & NORGATE, Londoa. Science, and into Engineering Works.

Special Courses in Electrical Engineering

The extensive Physical and Chemical Laboratories are fitted up in the most complete manner for both Elementary and Advanced Work.

The College is supplied with very complete Geological Collections for practical instruction. Students are regularly sent to the College by Leading Engineers and

(Late CHARLES JAMRACH), Scientific Authorities, whose Names are given in the Prospectus.

NATURALIST, UNIVERSITY COLLEGE OF SOUTH 180 ST. GEORGE STREET EAST. WALES AND MONMOUTHSHIRE, Implements of Savage Warfare, Idols, Sacred Masks. Perarias Porte CARDIFF.

Ne tsukis, China, Lacquer, Gongs, Shells, and other Curios
FACULTY OF MEDICINE.
The Council is about to proceed to the Appointment of a PROFESSOR of

COLLECTIONS OF MINERALS ANATOMY and a PROFESSOR of PHYSIOLOGY. The Stipend in each case will be 6350 per Annum.

Applications, together with Printed Copies of Testimonials, must be sent in on or before FEBRUARY 10, 1893.

For the Use of Scudents, Science Teachers, Prospectors, &c., and a For further Particulars apply to

illustrate the leading Text-books, in Boxes, with Trays

IVOR JAMES, Registrar. University College, Cardiff, December 13, 1892.

80 Specimens, 10s. 60.; 100 do., Pls. ; 900 do., 4 Now Price List of Minerals, Rocks, and Stratigrapkical Series Free

Post Free.
LONDON UNIVERSITY
EXAMINATIONS.

ROCK SECTIONS for the MICROSCOPE from 19.64. each, Pes Ft

CATALOGUES GRATIS. Mr. R. S. CLAY, B.A. (Cantab.), B.Sc. (London), will give a Course CABINETS, GLASS-CAPPED BOXES. TRAYS, HAMMERS of Lectures on " Light" at the Birkbeck Institution, Breams Build

always in Stock. ings, E.C., commencing on SATURDAY, FEBRUARY 4, at 2 o'clock. These Lectures will be adapted for Students working for the B.Sc. Examinations (Pass and Honours), and the Honours Examinations of the Science and Art Department. For full particulars apply to the SECRETARY of the Physics Classes.

78 NEWGATE STREET, LONDON, EC.

ALBERT EDWARD JAMRACH

ROCKS, OR FOSSILS,

THOMAS D. RUSSELL

Sales by Auction.

MONDAY, FEBRUARY 13.
ALUABLE MICROSCOPICAL AND BOTANICAL LIBRARIES,

SCIENTIFIC WORKS, &c.
1R. J. C. STEVENS will sell by Auction,

at his Great Rooms, 33 King Street, Covent Garden, on MONDAY,
FEBRUARY 13, at half-past 12 precisely valuable Microscopical and

Botanical Libraries, Scientific Works, &c., &c.
On view Saturday prior, 10 till 4, and Morning of Sale, and Catalogues

THE GEOGRAPHICAL JOURNAL.

Contents—FEBRUARY.
To Lake Bangweolo and the Unexplored Region of British Central Africa.

By Joseph Thomson. With Maps.
Journeys in the Benin Country, West Africa. By Captain H. L.

GALLWEY.
The Crossing of the Hispar Pass. With Illustration. By W. M.

Coxway
Mendez Pinto. By STEPHEN Wheeler.
The Ruins in Mashonaland. By HENRY SCHLICHTER, Ph.D.
Ascent of Mount Demavend.
Anglo-Portuguese Delimitation Commission.
The Western Lowland of Ecuador. By Dr. Th. Wolf.
THE MONTHLY RECORD.-The Marshes of West Russia. - The Pamirs.-

The Transcaspian Territory. -Forests in Russian Turkestan.-Captain
Binger's Expedition to the Southern Soudan. - Lieutenant C. H.
Villiers' Expedition in North East Africa. -Sir Walter Ralegh's Map
of Guiana.- Los Penitentes.-Commercial Condition of Guatemala. –
Climate of New South Wales.-Expedition to the North Magnetic
Pole.--The Antarctic Whalers.-Atlantic Icebergs and the Climate of
Europe.-Hannibal's Vinegar.-The Part played by Mountains in

the Distribution of Races, &c., &c.
The Karakoram Peaks. By Lieut.-Colonel H, H. GODWIN-Austen and

W. M. CONWAY.
Geographical Literature of the Month. New Maps.

London: EDWARD STANFORD. Price 25.

TUESDAY, FEBRUARY 14.
COLLECTION OF COLEOPTERA AND LEPIDOPTERA, AND

OTHER NATURAL HISTORY SPECIMENS.
IR. J. C. STEVENS will Sell by Auction,

at his Great Rooms, 38 King Street, Covent Garden, W.C., on
TUESDAY, FEBRUARY 14, at half-past 12 precisely, a Collection
of European and Exotic Coleoptera, Heterocera from New Zealand,
British and Exotic Lepidoptera; also, Collection of Shells, Minerals,

Heads and Horns of Animals, Cabinets, Birds' Eggs, &c., &c. to view Day prior from 10 till 4 and Morning of Sale, and Catalogues had.

CONCHOLOGY.

Just Published. Post free, 6d. CATALOGUE, No. 118. Including Sir G. B.

AIRY'S Library. Part I. Transactions of Scientific H. F. has just acquired the grand

Societies, Periodicals and Serials, Government ReCollection of LAND and FRESH.

ports, History of Science. WATER SHELLS formed by the

I FOR SALE: FINE COPIES, late Mr ARTHUR. MORELET WILSON (0. S.). THE LARVÆ OF THE BRITISH LEPIDOPTERA

AND THEIR FOOD-PLANTS, with Life-sized Figures, drawn and probably the largest Collection ever

Coloured from Nature. 367 pp. and 40 Plates, Coloured Figures of

415 Species, with the Plants on which they feed, and 73 Coloured formed by an Amateur, comprising Figures of Varieties. Imperial 8vo, Half Morocco, 1880, £5.

HERRICH-SCHAEFFER (C. A. W.). SYSTEMATISCHE BEARBEITUNG nearly 10,000 SPECIES.

DER SCHMEITERLINGE VON EUROPA. 636 Plates, Original ITKA FULTONI,

Colouring, and 36 Plain Plates. 6 Vols. Text, and 's Vols. Plates, in E. Smith.

Vols. 4to, New Half Calf, 1843-56, £45.
WILLIAM WESLEY & SON,

28 ESSEX STREET, STRAND, LONDON. HUGH FULTON (Conchologist),

ON SALE BY 216 KING'S ROAD, LONDON, S.W.

GLASS-TOPPED BOXES, CARD TRAYS, &c.

EW

MACMILLAN & BOWES, ZOOLOGICAL MICROSCOPICAL SLIDES.

CAMBRIDGE,

COMPTES RENDUS HEBDOMADAIRES DES PONGES :

| ANNELIDA :

Heteronereis form of N. Vail SÉANCES DE L'ACADÉMIE DES SCIENCES. Vols. 4 to 23 Syron ciliatum, showing flagella lauti, is, 6d.

26 to 33, 42, 43, 45 to 87, 90, 91. 28 Vols. Half Calf, the rest in Numbers of oollar cells-very fine, 28. Repro, bud of Syllis, is. 3d.

(4 Tables, 2 Titles, and 7 Numbers wanting.) In all 75 Vols. 1837 to I soditya ingalli, sec. showing dutolytus prolifer, male, Is. 3d. 1880. 610 10s. ** problematical" fibres and gas. Serpula pectinata, Is. 6d.

A long Series of this important Work, containing Articles by Aoust, Arago, trula, 18. 667. Othonia fabricia, Is. 6d.

Bailly, Berthelot, Bertrand, Biot, Cauchy, Chasles, Dupin, Encke, Faye, TUNICATA :

Gauss, Hermite, Jacobi, Jamin, Jordan, Lacroix, Leverrier, Libri, Moigno, 'YDROZOA:

Tadpole larvæ of Aplidium, Monge, Poinsot, Poisson, Poncelet, Saint Venant, Secchi, Serret, Sylvester, full anatomy shown, Is. 6d.

Verdet, and many others. Evdendrium developing gonads, Adult Perothora listeri, is. 3d. COSMOS. Revue encyclopédique hebdomadaire des progrès 15. 64. Adult Clavellina (very fine), 28.

des Sciences et de leurs applications aux Arts et l'Industrie. Fondée par Bougainvillia, 18. 3d. to 1s. 6d . PISCES:

B. R. de Monfort, redigée par l'Abbé Moigno. (First Series), 1859 Plumularia haiecioides, 18. 6d. Entire Amphiorus in repro., to 1863, 10 Vols. (Sccond Series), Les Mondes, 1863 to 1881, 56 Vols. Virolaria mirabilis, 18. 3d. 28. 6d., 48.

Third Series. Vols. I to 3. In all 69 Vols. 8vo, Half Calf. 1859 to (The last four are very beautiful, T. S. head of embryo shark, 1882. £10 105. d have polyps fully expanded.). i 15. 6d.

EDUCATIONAL TIMES. A Monthly Journal of EduThe above Series in Cloth Covered Box sent Post free for 225.

cation, Science, and Literature. Vols. 4 to 43. 1850 to December

1890. 41 Vols. in 20, Cloth, and 2 in Numbers. 64 ros. 188ECTING TYPES.-All Forms required for Science

Sets of this important Journal are very scarce. It contains valuable Courses.

mathematical questions and solutions, the republication of which, in book

form, did not commence until 1864. Pages 25 to 48 of Vol. 4, and the Title SINEL & HORNELL, Biological Laboratory, Jersey. and Contents of Vol. 40 are wanting ; otherwise it is perfect. : H. BUTLER, M.A. Oxon., Assoc.R.S. Mines. NATURAL HISTORY AGENCY,

When this Ink is used writing 158 BROMPTON ROAD, LONDON.

becomes a pleasure. lealer in Rocks, Minerals, Fossils, and other objects of Scientific Interest.

INK

May be had from all Stationers. Now On View:-A large and varied assortment of Rock-specimens re. atly obtained from West Shropshire and North Wales, including numerous abases, variegated Volcanic Ash, Agglomerate, and Breccia, Quartzite

In Jars, bd., 1s., & 2s. each. in the Stiper Stones, Spoued Schists, and Granitite; also, a Collection of Can be obtained in London, through Messrs. BARCLAY & Sons, Farringdon teptionally fine polished examples of Labradorite, Green Aventurine | Street; W. EDWARDS, Old Change; F. NEWBERY & SONS, Newgate sartz, Agate, Jasper, and other Ornamental Stones; Pyrite after Pyrrho.

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BEWLEY & DRAPER (Limited), Dublin.

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