Page images
PDF
EPUB

OPTICAL CONVENTION, 1905.

[ocr errors]
[ocr errors]

BIRKBECK COLLEGE.

BREAMS BUILDINGS, CHANCERY LANE, E C.
President :

FACULTY OF SCIENCE,
Dr. R. T. GLAZEBROOK, M.A., F.R.S.,

DAY AND EVENING COURSES.
Director of the National Physical Laboratory.

Chemistry
Vice-Presidents:

SJ. E. MACKENZIE, Ph.D., DSC

TH. WREN, Ph.D., B.A., BSc Sir WM. DE WIVELESLIE ABNEY, K.C.B., D.C.L., F.R.S.

(ALBERT GRIFFITHS, D.Sc. THE RIGHT HON. THE LORD BLYTHSWOOD.

Physics ...

D. OWEN, B A., B.Sc.
Sir W. H. M. CHRISTIF, K.C.B , M.A., F.R.S.,

B. W. CLACK, B.Sc.
Astronomer Royal. Mathematics

E. H. SMART, M.A.

(W.G. BIRT, B.A., B.Sc The Right HON, THE EARL OF CRAWFORD, K.T., LL.D., F.RS.

(A. B. RENDLE, M.A., D.Sc. MR. Thos. R. DALLMEYER, F.R.A.S.

Botany

(F. E. Fritsch, Ph.D. B.Sc. The Hon. Alban G. H. Gibbs, M.A., M.P.,

Zoology

H. W. UNTHANK, B.A., B.Sc
Master of the Worshipful Co. of Spectarie Makers. Geology & Mineralogy Geo. F. HARRIS, F.G.S.
SIR HOWARD GRUBB, F.R.S.

Assaying, Metallurgy & Mining. Geo. PATCHIN, A.R.S.M The Right Hon. THE LORD KELVIN, O.M., G.C.V.O., F.R.S. RESEARCH in Chemistry and Physics in well-equipped laboratories The Right Hon. The LORD RAYLEIGH, O.M., D.C.L., F.R.S.

French, German, Spanish, Russian, Dutch, & Italian Classes. THE RIGHT HON. THE EARL OF ROSSE, K.P., D.C.L., F.R.S.

EVENING CLASSES also in Biology, Physiology, Practical Geometry

Building and Machine Construction, Steam, Tbeoretical and Appa THE OPTICAL CONVENTION will be held at the North AMPTON INSTITUTE, CLERKENWELL, E.C., from May 31 to

Mechanics, Land and Quantity Surveying, and Estimating. June 3, inclusive.

Calendar 6d. (post free 8d.), on application to the SECRETARY. The object of the Convention is to bring into co-operation those interested in Optical Matters, from all sides of the question, theo. retical, practical, and commercial.

ROYAL INSTITUTION OF The mornings will be devoted to papers and discussions on Optical subjects. These will be collected in a volume to be issued by the Convention.

GREAT BRITAIN. There will be an EXHIBITION OF OPTICAL & SCIENTI .NSTRUMENTS ALBEMARLE STREET, PICCADILLY, W. of British manufacture, in the large ha!l of the Noi shampton Institute,

SATURDAY next, April 1, at Three o'clock, THE RIGHT Hox. 11: during the Convention, open daily from 12 to 10 p.m. In connection

RAYLEIGH, O.M., D.C.L., LL.D., Sc.D., F R.S., Professor of Naz-a' with this, a catalogue is in preparation, which will be a useful work

Philosophy, R.I. First of three lectures on “Some Controverted to of reference in regard to instruments manufactured in this country,

tions of Optics." Half-a-Guinea the Course. The Subscription for Membership of the Convention will be five

TUESDAY, April 4, at Five o'clock, PERCEVAL LANDON, ES,

of two lectures on "Tibet." Half-a-Guinea shillings. Applications for membership should be addressed to the Hon. Sec., Mr. F. J. Serby, M.A., Elm Lodge, Teddington,

THURSDAY, April 6, at Five o'clock, Professor R. MELDOLA, F.RS

M.R.I. Middlesex, who will be glad to furnish further particulars if desired.

First of two lectures on "Synthetic Chemistry" (Esperimente

Half-a-Guinea ADMISSION to the Exhibition, daily, ONE SHILLING,

Subscription to all Courses in the Season, Two Guineas, after 7 p.m., Sixpence. Tickets admitting to the Exhibition at any time while it is open,

2/6.

ST. THOMAS'S HOSPITAL,

ALBERT EMBANKMENT, S.E. UNIVERSITY OF BIRMINGHAM.

(UNIVERSITY OF LONDON.) Faculties. SOIENCE, ARTS, MEDICINE, COMMERCE.

The SUMMER SESSION will COMMENCE ON APRIL

The Hospital occupies one of the finest sites in London, and contains ses
SPECIAL SCHOOL OF MODERN LANGUAGES.

Beds, of which 540 are in constant use.
DEPARTMENT FOR TRAINING OF TEACHERS.

Entrance and other Scholarships and Prizes (26 in number) of the ea's

of more than 6500, are offered for competition each year. Scbools of

Upwards of 60 Resident and other Appointments are open to Studest. ENGINEERING, METALLURGY, MINING, BREWING,

after qualification.

A Students' Club forms part of the Medical School Buildings, and DENTISTRY,

Athletic Ground, nine acres in extent, situated at Chiswick, can be recy

in forty minutes from the Hospital. Leading to Degrees and Diplomas.

A Prospectus, containing full particulars, may be obtained frc. I. ALL COURSES AND DEGREES ARE OPEN TO BOTH MEN AND WOMEN

undersigned.

J. H. FISHER, B.S. Lond., Dear STUDENTS.

In the Medical School there is a separate Dissecting Room for Women (UNDER THE AUSPICES of His MAJESTY'S GOVERNMENT with a qualified Woman Demonstrator.

Graduates of other Universities may, after two years' study or research, THE LONDON SCHOOL OF TROPICAL take a Master's Degree.

MEDICINE.
Syllabuses with all information will be sent on application to the
SECRETARY.

(UNIVERSITY OF LONDON.)

CONNAUGHT ROAD, ALBERT DOCK, E. THE SIR JOHN CASS TECHNICAL INSTITUTE,

(IN CONNECTION WITH THE HOSPITALS OF THE SEAMER

HOSPITAL SOCIETY.)
JEWRY STREET, ALDGATE, E.C.

The next SESSION commences on MONDAY, MAY 1, 1995 A Course of Twelve Lectures and Demonstrations on

For Prospectus, Syllabus, and other particulars, apply to tbe Secretary PHYSICAL CHEMISTRY

P. Michelli, Esq., Seamen's Hospital, Greenwich, S.E.
will be given during the Summer Term by
G. SENTER, B.Sc., Ph.D.,

THE VICTORIA
Lecturer on Chemistry at
St. Mary's Hospital Medical School.

UNIVERSITY OF MANCHESTER The Lectures and Demonstrations will be held on Wednesday

FACULTY of MEDICINE Evenings, 7-9 p.m., commencing Wednesday, March 29.

(including the DENTAL, PHARMACEUTIC.1and . The Course is arranged for students of Chemistry and Physics and for

HEALTH DEPARTMENTS). those engaged in Chemical and Electrical industries, who desire to obtain a knowledge of the modern developments of Physical Chemistry.

The SUMMER SESSION will commence on Tuesday, April 14 It will also be adapted to the requirements of candidates for the final registration of Students will begin on this day at 9.30 a. in a B.Sc. examination of London University,

continued during the week (Saturday excepted). A Course of Laboratory Work in connection with the lectures will PROSPECTUSES, giving full information as to warm asf be held on Wednesday afternoons.

the MEDICAL and DENTAL DEGREES and DIPLOMAX A detailed Syllabus may be had upon application at the Office of the will be forwarded on application to the Registrar. Institute or by letter to the PRINCIPAL:

W. H. DAVISON, MA., (leik to the Governing Body, For other Scholastic Advertisements, see pages ccitas." sr.

[ocr errors]
[blocks in formation]

BOARD OF EDUCATION, AUCKLAND,

NEW ZEALAND. DEPARTMENT OF TECHNICAL EDUCATION

AND MANUAL TRAINING. Immediate applications are invited for the following appointments :(1) TEACHER of WOODWORK for the THAMES MANUAL TRAINING SCHOOL. Candidates must have had experience in teaching Woodwork in primary schools, and, if possible, be qualified to give instruction in evening technical classes in some such subjects as Pattern. making, Machine Drawing, Steam, Practical Mathematics, &c. Salary, £200 per annum for at least three years ; second class passage paid.

(2) TEACHER of WOODWORK for the WHANGAREI MANUAL TRAINING SCHOOL. Candidates must have had experience in teach. ing Woodwork in primary schools, and, preferably, be qualified to give instruction in evening technical classes in some such subjects as Building Construction, Carpentry and Joinery, Practical Geometry, &c. Salary, £200 per annum for at least three years; second class passage paid.

(3) TEACHERS of COOKERY (2) for THAMES and WHANGAREI MANUAL TRAINING SCHOOLS. Candidates must have had experience in teaching Cookery in primary schools, and, preferably, be qualified to give instruction in evening technical classes in some such subjects as Laundrywork, Dressmaking, Millinery, &c. Salary, £160 per annum for at least three years ; second class passage paid.

(4) MASTER for HAND-AND-EYE TRAINING and ART SUB. JECTS. Applicants must possess Art Master's Certificate, and have had experience in teaching Art subjects. They should also have paid special attention to subjects of Hand-and-Eye Training such as are taught in the Standards of the English Primary Schools. Salary, £200 per annum for at least three years; second class passage paid.

Full particulars can be obtained by sending stamped addressed foolscap envelope to the undersigned, c/o THE AGENT.GENERAL FOR NEW ZEALAND,

13 Victoria Street,

Westminster.
GEORGE GEORGE, F.I.C., F.C.S.,

Director of Technical Education and Manual Training. Auckland, N.Z.,

February 16, 1905. HANDSWORTH GRAMMAR SCHOOL,

NEAR BIRMINGHAM. The Governors are prepared to APPOINT a HEAD MASTER, who must be a Graduate of some University of the United Kingdom, to enter apoo his duties as soon as possible. Stipend, £150 a year, with Capitation fee of 62 per boy. Present number 140. Accommodation up to 200 ; no boarders.

Applications, with copies of not more than three recent testimonials, to be sent before April 17, 1905, to H. TRAVERS EDGE, Clerk to the Governors, s Waterloo Street, Birmingham.

[blocks in formation]

LONDON INTER-COLLEGIATE

SCHOLARSHIPS BOARD. About 20 Scholarships and Exhibitions ranging in value from £20 to £50 a year for men and women, tenable at University College, King's College, and the East London Technical College, in the Faculties of Arts, Science, and Engineering, will be offered for competition by the London InterCollegiate Scholarships Board on June 27 and following days.

Entries will close on May 30. Full particulars and forms of application may be obtained on application to the SECRETARY of the Board, King's College, Strand, W.C.

[graphic]

HIGHER MATHEMATICS FOR SCIENCE AND OTHER STUDENTS. Correspondence Tuition by highly qualified graduates of Royal Universiijes, in Algebra, Trigonometry, Theoretical Mechanics, Differential and Integral Calculus, Pure Geometry, Geometrical Drawing, &c.

Departments are at work preparing for London and Royal University Examinations, Science and Art, Civil Service Examinations, and all Prof. Preliminaries --Apply to Mr. J. CHARLESTON, B.A., Burlington Correspondence College, Clapham Common, London, S.W.

[ocr errors]

SECOND MASTER required for important

Grammar School.-Science and Maths. essential. Candidates must be University men, and have had successful experience. Salary, £180. For particulars of the above and other Science and Mathl. posts, address GRIFFITHS, SMITH, Powell & SMITH, Tutorial Agents (Estd. 1833), 34 Bedford Street, Strand, London.

TECHNICAL SCHOOL,

TIVERTON, DEVON. SCIENCE DEMONSTRATOR (part time) wanted after Easter. Assistance given for Degree. Commencing salary, £75. Good prospects. For further particulars apply DIRECTOR.

For other Scholastic Advertisements, see pages ccii and cciv.

SANCER-SHEPHERD & CO.,

5, 6 & 7, Gray's Inn Passage, Red Lion St., Holborn, London, W.C.

SCIENTIFIC AND

EDUCATIONAL BOOKS

NEW & SECOND HAND.
DE LARGEST STOCK in LONDON of SECOND-

HAND School, Classical, Mechanical, ELEMEN.
TARY and ADVANCED SCIENTIFIC BOOKS

at about HALF PUBLISHED PRICE. Mathematical, Theological, and Foreign Books.

KEYS AND TRANSLATIONS.
J. POOLE & CO.

(ESTABLISHED 1854),
104 CHARING CROSS ROAD,

LONDON, W.C. (Formerly of 39 HOLYWELL STREET, STRAND). Ir Enquiries by letter receive immediate attention.

LEWIS'S CIRCULATING
SCIENTIFIC LIBRARY.

MEDICAL AND

SCHOOL OF AGRICULTURE,

GHIZEH, EGYPT.
JUNIOR LECTURER IN AGRICULTURE.
Applications are invited for the post of JUNIOR LECTURER in
AGRICULTURE at the School of Agriculture, Ghizeh, under the Ministry
of Public Instruction.

Candidates must be not less than 23 nor over 33 years of age, have a robust constitution, and possess a University Degree or College Diploma in Agriculture. Preference will

be given to applicants baving experience of Agricultural Practice and Teaching. In addition to Agriculture, the Lecturer appointed will be required to teach elementary Agricultural Botany and Entomology.

Salary, £295 per annum (£Eg.24 per mensem), rising to £393 per annum (£Eg.32 per mensem). Allowance for passage out to Egypt.

Applications, with full statement of qualifications, and accompanied by
copies only of testimonials, must be sent in before May 4, 1905, to W. C.
MACKENZIE, Esq., D.Sc., Principal, School of Agriculture, Ghizeb, Egypt,
to whom candidates may apply for further information.
HEADMASTER Wanted, Grammar School
near London. Fixed Stipend, £150. Capitation Fees and House.

SEVERAL GOOD POSTS IN
SCIENCE AND MATHEMATICS Vacant.

APPLY-
ORELLANA

CO., 80 Wigmore Street, Cavendish Square, London, W.

(late of 44 Old Bond Street). Berichte der deutschen chemischen Gesell

schafte. 1878 to 1901 inclusive. Forty volumes bound ball calf, cloth sides; the rest as issued. Price £13.-CHAPMAN JONES, 11 Eaton

Rise, Ealing, W. "Nature, Vols. 1.-XIV., bound, offers

wanted. -STODDART, Grafton, Rockleaze, Bristol. For Sale.-Extensive Collections of British

Lepidoptera, Coleoptera, Tropical Butterflies, Cabinets, &c. Correctly
named type collections at very moderate prices.- Particulars from

A. FORD, Hillside, Sunnyhill, Pokesdown, Bournemouth.
TYPE-WRITING UNDERTAKEN BY

HIGHLY EDUCATED WOMEN ACCUSTOMED TO SCIEN-
TIFIC MSS. (Classical Tripos, Intermediate Arts, Cambridge Higher
Local, thorough acquaintance with Modern Languages). Research,
Revision, Translation. Scale of charges on application. The Cam.
bridge Type-writing Agency, 10 Duke Street, Adelphi, W.C.

EXPORT & RETAIL

BOOKSELLERS and Dealers in Scientific, Literary, and other Journals and Reviews, and Publications of Learned and Scientific Societies, in Complete sets, Volumes,

or Parts.
Agents for British, Foreign, and Colonial Libraries, Institutions, and
Private Book Buyers. Current Catalogue sent post sree on application.
Books sought for. Correspondence Invited. All communications answered.
LIBRARIES OR SMALL COLLECTIONS OF BOOKS PURCHASED.

All Orders promptly executed. Established 1820.
151, WHITECHAPEL ROAD, LONDON, ENG.

THE IRISH NATURALIST.
A Monthly Magazine of Irish Zoology, Botany, and

Geology. Price 6d.
Edited by GEO. H. CARPENTER, B.Sc., and R. LLOYD

PRAEGER, B.A.
Annual Subscription, 55. Post Free to any Address.
Dublin : EASON & SON, LTD., 40 Lower Sackville Street

(to which Address Subscriptions should be sent).
London : SIMPKIN, MARSHALL, HAMILTON, KENT, & CO., Ltd.

[graphic]

In addition to Medicine and the allied Sciences, the Library includes the subjects of Physics, Chemistry, Electricity, Botany, Geology, Zoology, Astronomy, Psychology, Philosophy, Sociology, Engineering, Geography and Travel, &c.

New Works and New Editions on these subjects are added to the Library immediately on publication, SUBSCRIPTION, TOWN OR COUNTRY, FROM ONE CUINEA. Detailed Prospectus, List of Recent Additions, &c., post fra. London: H. K. LEWIS, 136 GOWER STREET, W.C. Telegrams: “PUBLICAVIT, London." Telephone: 10,721 CENTRAL

E. CEORCE & SONS, ESPERELLERSAIL TO SCIENTIFIC MEN ABROAD

English Books (New and Second-hand) and Periodicals promptly supplied at lowest rates. German and French Banknotes and Stamps received in payment. References

in all parts of the world.

W. MULLER, Export Bookseller, London, W.

59 CASTLE STREET EAST, OXFORD STREET. ENGLISH and FOREIGN

SCIENTIFIC BOOKS
AND PERIODICALS SUPPLIED WITH DESPATCH
AT LOWEST DISCOUNT PRICES.

Foreign money accepted.
LONDON: A. SIEGLE, 2 LANGHAM PLACE, W.

RECENT & COMING ECLIPSES.

BY Sir NORMAN LOCKYER, K.C.B., F.R.S. Second Edition, containing an account of the Observations made at Viziadrug, in India, in 1898, and of the conditions of the Eclipses visible in 1900, 1901 and 1905.

8vo. 6s. net. MACMILLAN AND CO., LIMITED, LONDON.

MESSRS.

Kegan Paul, Trench, Trübner & Co., Ltd.

CONSTABLE'S LIST VARIATION IN By H. M. VERNON, M.D.

SPECIES AND VARIETIES:

Their Origin by Mutation.

WANDERINGS in the GREAT FORESTS

OF BORNEO. By ODOARDO BECCARI, Sc.D., F.L.M.S., &c. Translated by Dr. ENRICO H. GIGLIOLI, C. M.Z.S., and Revised and Edited by F. H. H. GUILLEMARD, M.D. 16s. net.

The translation of his book . . . which has been made with extra.

ordinary command of English idiom by Prof. Giglioli of Florence, brings 415 pages. Crown 8vo. 5s.

within the reach of English readers one of the most interesting and (The nero volume in the International Scientific Series.) suggestive works on the tropical forests which have appeared for many

years."-Athenaum. E. B. P. in NATURE :-“This little book meets a real want. The frequent discussions of recent years upon the problems of A SHORT HISTORY OF ANCIENT evolution have been followed with much interest by an in

EGYPT. By PERCY E. NEWBERRY and JOHN GARSTANG. creasing number of readers and listeners, and the present Crown 8vo. 35. 6d. net. writer has often been surprised at the keenness of the interest

"This little book is distinguished by being written on a somewhat new which can coexist with an almost complete lack of knowledge plan. ., . They have succeeded remarkably well. We shall read any. of the essential details, and he feels that the present work

thing else they may write in continuation of the present work with the provides precisely the information that is required-a clear,

attention which their labours have fairly won."-Athenæum. accurate, and dispassionate statement, not too long or too detailed, of researches and reasoning upon problems connected NATURAL HISTORY IN THE 200with variation.”

LOGICAL GARDENS, being some Account of Vertebrated Animals, &c., &c. By FRANK E. BEDDARD, M.A., &c. With illustra. tions by GAMBIER Bolton and WINIFRED AUSTEN. 6s. net. "It gives a skilled and interesting account of the history, the appear. ance and the habits of more than a hundred different kinds of beasts, birds, and creeping things. . . . The instructive and concise descriptions in the text are helped out by many admirable photographs."-Scotsman.

ANTI-TYPHOID INOCULATION, By HUGO DE VRIES

CONTAINING THE PRINCIPLES OF THE METHOD AND

A SUMMARY OF THE RESULTS ACHIEVED BY ITS (Professor of Botany in the University of Amsterdam). APPLICATION. By A. E. WRIGHT, M.D., Pathologist to St.

Mary's Hospital. Demy 8vo. 35. 6d. net. 847 pages. 8vo. 218. net.

ELECTRICITY AND MATTER. By Prof. KEGAN PAUL, TRENCH, TRÜBNER & CO., LTD., J. J. THOMSON, Diagrams. 55. net. DRYDEN House, 43 GERRARD Street, W. THE DISCHARGE OF ELECTRICITY

THROUGH GASES. By Prof. J. J. THOMSON. Diagrams. NOW READY.

45. 61, net.

THE FLOW OF STEAM THROUGH With Illustrations, 28. 6d. net, by post 28. 9d. NOZZLES AND ORIFICES, Experimental Researches. By A.

RATEAU. 45. 6d. net. "A book essential to all study of the various steam turbine problems." STEAM TURBINES. With an Appendix

on Gas Turbines and the Future of Heat Engines, and 241 Cuts and

3 Lithograph Tables. By Dr. A. STODOLA. THEIR EMPLOYMENT in CANCER and

GAS ENGINE DESIGN. By C. E. Lucke, other DISEASES.

Ph.D., Mechanical Engineering Department, Columbia University.

Demy 8vo. 125. 6d. net. BY RICHARD J. COWEN, L.R.C.S.I., L.R.C.P.I., &c. MECHANICAL APPLIANCES (Second

Series). By GARDNER D. HISCOX, M.E. Fully Illustrated.

Demy Svo. 129. 6. net. London : H. J. GLAISHER, 57 Wigmore Street, W.

MECHANICAL MOVEMENTS : Powers,

DEVICES AND APPLIANCES. (First Series.) By GARDNER
D. HISCOX. Demy 8vo. 128. 6d. net.

X-RAYS:

219. net.

OUR STELLAR UNIVERSE, COMPRESSED AIR: Its Production, Uses

A Road-Book to the Stars.

By T. E. HEATH. Distances and Luminosities by a Simple Scale. Stereograms show Sun and Stars of known Parallax hanging

in space of three dimensions.

Price 58. net.
KING, SELL, & OLDING, LTD., 27 Chancery Lane, London.

AND APPLIANCES. By GARDNER D. HISCOX, M.E. Demy

8vo. 205. net.
MAXWELL'S THEORY AND WIRE-

LESS TELEGRAPHY. Part I. : MAXWELL'S THEORY AND
HERTZIAN OSCILLATIONS. By H. POINCARE. Trans-
lated by K. VREELAND. Part II. : THE PRINCIPLES OF
WIRELESS TELEGRAPHY. By K. VREELAND. los. 6d.

net.

With 30 Original Illustrations. Price 25. 6d.
The HYGIENE of the MOUTH.
A Guide to the Prevention and Control of Dental Diseases.
By R. DENISON PEDLEY, L.D.S. Eng., F.R.C.S. Ed.,
Dental Surgeon to the Evelina Hospital, Southwark.

BY THE SAME AUTHOR.
The DISEASES OF CHILDREN'S TEETH.

Well Illustrated. Price 75. 6d.
SEGG & CO., 289 and 291 Regent Street, London, W.

LIQUID FUEL and ITS COMBUSTION.

By W. H. BOOTH. With about 120 Illustrations and Diagrams.

245. net ELECTRIC FURNACES. By J. Wright.

Demy 8vo. 8s. 6d, net. "The volume altogether furnishes a valuable detaile i account of a very important branch of electricity to industrial purposes.'

LONDON : 16 JAMES STREET, HAYMARKET.

[merged small][subsumed][ocr errors][subsumed][ocr errors][ocr errors][ocr errors]

THE NEW "STUDENT'S" STANDARD BAROMETER.

(Rd. No. 420,297.). This Instrument has been designed to meet the re quirements of Students and others who find the need of a Barometer which will give exact readings, and cost but a moderate sum.

It appeals especially to Colleges and Schools for Demonstration purposes.

The construction is on that of the well-known" Fortin" principle. The level of the cistern mercury is redecible to zero, in exactly the same manner as in the more expensive forms.

The diameter of the mercurial column is az inch, and affords a bold, well-defined reading. The scales, by means of the double vernier, are capable of being read to 'or inch and 1 millimetre. It is mounted on a well. polished, solid mahogany board, with plates for attach ment to wall, opal glass reflectors for reading off, and screws for vertical adjustment.

The metal portions are all well bronzed and lacquered, and the scales are silvered brass.

We confidently recommend this Instrument for use as "Standard" in Colleges and Schools, private Observa. tories, and by Gas and other Engineers. Price, complete, mounted as illustrated,

£3 7 6 each, or may be had with one scale (either inches or millimetres), and with thermometer on other scale, at same price.

I NATURE says :-"Provides an accurate instru ment at a moderate cost."

FULL SIZE STANDARD BAROMETERO same design, bore 0'5" diameter, inches and millimetre scales, verniers reading to o'coz inch and o'1 m/m, on polished mahogany board with brackets and opal glass reflectors, $7 10 0 Sole Manufacturers and Proprietors of the

Registered Design. PASTORELLI & RAPKIN, LTO.

46 HATTON GARDEN, LONDON, E.C. WHOLESALE MAKERS OF ALL KINDS OF METEOROLOGICAL INSTRUMENTS

Contractors to H.M. Government, Estd, 1750 Telegrams,“ Rapkin, London." Telephone, 1981 Holbora

[graphic]

a

[blocks in formation]

W.H. SMITH & SON'S

LIBRARY

VOLUMETRIC APPARATUS

[blocks in formation]

Verified and Stamped

at the NATIONAL PHYSICAL

LABORATORY.

Over 800 Branches to which Subscribers may be transferred

Terms and Particulars on application. Many Thousands of SURPLUS LIBRARY BOOKS and VALUABLE NEW REMAINDERS OFFERED

AT GREATLY REDUCED PRICES.
Works of Standard Interest in all branches of General
Literature, suitable for Students, Institutions, Libraries,
Presents, &c., Carriage Free to any of the Railway

Bookstalls.
MONTHLY CATALOCUE (150 PACES) FREE ON APPLICATION.

JOHN J. GRIFFIN & SONS, Ltd., SARDINIA STREET,

LONDON, W.C.

WAP: 186 STRAND, LONDON, W.C.

« PreviousContinue »