Page images
PDF
EPUB

UNIVERSITY OF LONDON.

Applications are invited from Men Graduates of British Universities for a Secretaryship in the University of London. Preference will be given to Graduates of that University between the ages of 25 and 30. Salary £250, rising by annual increments of 10 to a maximum of £300. The candidate appointed will be required to join the University Pension Scheme. Requests for printed forms of application and further particulars should be marked on the outside "Secretaryship," and should be accompanied by an addressed foolscap envelope. The last day for receiving applications is Thursday, March 18, 1915. HENRY A. MIERS, Principal.

University of London, South Kensington, S. W.

PORTSMOUTH MUNICIPAL

COLLEGE.

APPOINTMENT OF VICE-PRINCIPAL AND HEAD OF THE CHEMISTRY AND NATURAL SCIENCE DEPARTMENT. Applications are invited for the position of VICE-PRINCIPAL and HEAD of the CHEMISTRY and NATURAL SCIENCE DEPARTMENT of the Portsmouth Municipal College.

Candidates must have special qualifications in Chemistry and Natural Science, and preference will be given to those holding Degrees in Arts as well as in Science. The salary will be at the rate of £300 per annum,

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

£14 14 @

£12 13

[ocr errors]

£6 15

Leitz 11b, 2 eyepieces, 3 and 7 objectives, double nosepiece, spiral Abbe and iris Watson "Fram," 1 eyepiece, 1 and 1/6 objectives, double nose piece, spiral Abbe and iris ... Many others. Also Objectives, Eyepieces, Double and Triple Nosepieces, Condensers, Lamps, Spectroscopes, Microtomes, Cabinets, &c. SECOND-HAND TELESCOPES. 4-in. Wray, mounted on massive oak lath stand with stretchers, horizontal and vertical movements by Hooke's joint, slow motions, large finder, 4 astro. and I day eyepieces...

...£40 0 0

[merged small][graphic]

increasing, after approved service, by annual increments of £25 to £350 PATENT

per annum.

[blocks in formation]
[graphic]

DENT'S ASTRONOMICAL CLOCKS SIDEREAL OR MEAN TIME CLOCKS FOR OBSERVATORIES £21 & UPWARDS

DI

Nature says: "Should find its way into many observatories where an accurate instrument is required at a moderate cost. For the sum of £21 they supply a clock with a 10-inch dial, dead-beat escapement, and wooden rod seconds pendulum in a solid mahogany case, and after examining the instrument we have no hesitation in pronouncing it a marvel of cheapness."

E. DENT & CO., Ltd., Watch, Clock, and Chronometer Makers. By Special Appointment to H.M. the King. Makers of the Great Westminster Clock, Big Ben. Makers the Standard Clock of the Royal Observatory, Greenwich, and the Principal Observatories throughout the World.

Only Addresses

61 STRAND,

[blocks in formation]

AND 4 ROYAL EXCHANGE, LONDON. 43 Grand Prizes and 1 Gold Medal Franco-British Exhibition.

OLD PLATINUM, GOLD

Dental Alloy, Scrap, &c.,
valued or purchased.

SPINK & SON, Ltd.,

17 & 18 PICCADILLY, LONDON, W.

[graphic]

EST. 1772.

Gems for experimental work at moderate prices.

ENGLISH CATALOGUE

KORISTKA

OF MILAN. Depot: H. F. ANCUS & CO.,

83 WICMORE ST., W.

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

An illustrated monthly record of
Anthropological Science, 1/- per part,
10/- a year, post free anywhere.
CONTENTS OF MARCH ISSUE.

ORIGINAL ARTICLES: Pre-Bantu Occupants of East Africa.-Music: Tones in Ibo. Stone Implements. Baluchistan. Annuak Fable.Darcing in Stone Circles.-Obituary of Frederick William Rudler. (With Plate C.)-Dinka Songs.-REVIEWS: Etude sur la Phonétique Historique du Bantu -Ten Years' Diggings in Lenape Land, 1901-1911.-Comparative Studies: A Contribution to the History of Cochin.-Étude Anthropologique des Populations des Régions du Tchad et du Kanim. - Etudes Bakango.

London: The Royal Anthropological Institute, 50 Great Russell St. General Agent: FRANCIS EDWARDS, 83 High Street, Marylebone, Lord n, W.

[blocks in formation]

NOTICE.

The issue of NATURE for to-day begins a new volume. The number is therefore a good one with which to begin subscribing.

***For Subscription Rates see p. vii.

OFFICE: ST. MARTIN'S STREET, London, W.C.

MANSFIELD'S

OIL GAS APPARATUS

Produces Gas of high Calorific power from any kind of Oil. MANSFIELD & SONS, Ltd., 11 Hamilton Sq., BIRKENHEAD

For Advertisement Rates, Terms of Subscriptions, &c., see page vii of the present issue of “Nature.”

66

Attention is directed to some of the topical articles which have
appeared in NATURE since the outbreak of the war:-"Openings
for British Chemical Manufacturers" (September 17); "Glass for
Optical Purposes" (October 1); "The Cultivation of Medicinal
Plants in England" (October 15); "The Sea Fisheries and the
War" (October 22); Science and the State " (October 29);
"High Explosives in Warfare" (December 24); "The Manufacture
of Dyestuffs in Britain: a Summary and an Appeal" (January 21);
"Synthetic Drugs in Great Britain" (January 28); "The Manu-
facture of Dyestuffs" (February 11); "Chemistry and Industry"
(February 18); "The Manufacture of Dyestuffs" (February 25);
"The Sea Fisheries and the War" (February 25). Any one
number will be sent by post on receipt of its published price,
plus postage.

OFFICE OF "NATURE," ST. MARTIN'S STREET, LONDON, W.C.

[blocks in formation]

without reversible adjustable table... Ditto, ditto, with "Phoenix arc lamp Reversible adjustable table

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

The University" Lantern, with Russian iron body, sliding baseboard, two superior objectives, with rack and pinion for focussing, condensers 4 in. diam., plane silvered mirror "A," which is moved by a knob causing the rays to be reflected upwards for the projection of objects in a horizontal plane, silvered prism which can be used at 'C," or as an erecting prism in mount "D," limelight burner, slide carrier. Price complete in travelling case, £10 7 6 11 15 0 7 6

"B" for supporting apparatus,

[blocks in formation]

JUST PUBLISHED. Med. 8vo. 368 Pages, with numerous Illustrations. Price 10s. 6d. net.

THE CHEMISTRY OF

PETROLEUM AND ITS SUBSTITUTES

A Practical Handbook.

By C. K. TINKLER, and F. CHALLENGER,
Ph.D. (Göttingen),
B.Sc. (Lond.), F.1.C.

D.Sc. (Birm.),

B.Sc. (Lond. and Wales). Lecturers in Chemistry, The University of Birmingham. With an INTRODUCTION by Sir BOVERTON REDWOOD, Bart. D.Sc., F.1.C., in which the following remarks occur :

"It is impossible to read the excellent handbook on the Chemistry of Petroleum and its Substitutes,' by Drs. C. K. Tinkler and F. Challenger, without being impressed with the scope which exists for the application of science in the treatment of Petroleum.

"The authors have aimed primarily at providing a text-book for students who require to become proficient in the chemical technology of petroleum, and they have admirably achieved their object by a skilful association of theory and practice."

JUST PUBLISHED. 162 Pages, with Diagrams and Illustrations. Royal 8vo. Cloth. Price 7s. 6d. net.

DYESTUFFS

AND

COAL-TAR PRODUCTS

Their Chemistry, Manufacture and Application. Including Chapters on Modern Inks, Photographic Chemicals, Synthetic Drugs, Sweetening Chemicals, and other Products derived from Coal-tar.

BY

THOMAS BEACALL, B.A. (Cambridge),

F. CHALLENGER, Ph.D., B.Sc.,

GEOFFREY MARTIN, Ph.D., M.Sc., B.Sc., and HENRY J. S. SAND, D.Sc., Ph. D.

London: CROSBY LOCKWOOD & SON 7 Stationers' Hall Court, Ludgate Hill, E.C.. and 5 Broadway, Westminster, S.W.

JUST PUBLISHED.

A BOOK of importance to all CHEMISTS, PHYSICISTS, BIOLOGISTS & BACTERIOLOGISTS.

[graphic]
[blocks in formation]

W. W. TAYLOR, M.A., D.Sc., Lecturer in Chemistry at the University of Edinburgh.

With 22 Illustrations; viii+328 pages; Crown 8vo, cloth, 7s. 6d. net.

This book aims at presenting, simply and yet fully, the chief properties of colloids-the methods of preparation (including surface energy, surface tension, surface concentration and absorption); while in a final section some technical and biological applications are discussed. Mathematics, unavoidable in the treatment of electrical properties and of surface concentration, and hypothesis are subordinated to a clear presentation of the experimentally-ascertained facts.

LONDON EDWARD ARNOLD, 41 & 43 MADDOX ST., W.

[graphic][subsumed][subsumed][subsumed][subsumed][subsumed][subsumed][subsumed][subsumed][subsumed][subsumed][subsumed][subsumed][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][graphic][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][subsumed][subsumed][merged small]

NOTICE.

For the convenience of readers of NATURE wishing to
inspect books published abroad which have been reviewed
in NATURE it has been decided to keep such volumes for
the period of six months at the publishing office of the
journal. The books will be retained for the purpose of
examination free of charge. The display of books
began with those reviewed in NATURE of January 7.

St. Martin's Street, London, W.C.

MACMILLAN & CO.'S LIST.

WORKS BY THE RT. HON. SIR HENRY ROSCOE, F.R.S. Primer of Chemistry. By the Rt. Hon. Sir HENRY ROSCOE, F.R.S. Lessons in Elementary Chemistry.

F.R.S. Fcap. 8vo.

45. 6d.

15.

Inorganic Chemistry for Beginners.

Pott

By the Rt. Hon. Sir
HENRY ROSCOE,

By the Rt. Hon. Sir
HENRY ROSCOE,

F.R.S., D.C.L., &c., assisted by JOSEPH LUNT, D.Sc. Second Edition, thoroughly revised. Globe 8vo.

2s. 6d.

Inorganic Chemistry for Advanced Students.

By the Rt. Hon. Sir HENRY ROSCOE, F. R.S., and ARTHUR HARDEN, F.R.S. Second Edition. Globe 8vo.

4s. 6d.

A New View of the Origin of Dalton's Atomic Theory. A Contribution to Chemical History. Together with letters and documents concerning the life and labours of JOHN DALTON, now for the first time published from manuscript in the possession of the Literary and Philosophical Society of Manchester. By the Rt. Hon. Sir HENRY ROSCOE, F.R.S., and ARTHUR HARDEN, F.R.S. With portrait. 8vo. 6s. net.

A Complete Treatise on Inorganic and Organic
Chemistry. By the Rt. Hon. Sir HENRY ROSCOE, F.R.S., and C. SCHORLEMMER, F.R.S. 8vo.

Vol. I. The Non-Metallic Elements. Fourth edition, completely revised by the Rt. Hon. Sir Henry Roscoe,
assisted by Dr. J. C. Cain. 8vo. 215. net.
Vol. II. The Metals. Fifth edition, completely revised by the Rt. Hon. Sir Henry Roscoe, and others. 8vo. 30s. net.
These two volumes together form a complete and thoroughly up-to-date Treatise on Inorganic Chemistry.
Vol. III. ORGANIC CHEMISTRY. The Chemistry of the Hydrocarbons and their Derivatives. Part II.,
215. Part III., 18s. Part IV., 215.

Spectrum Analysis.

plates. 8vo. 21S.

Part VI., 21S.

By the Rt. Hon. Sir HENRY ROSCOE, F.R.S. Fourth edition.
Revised by the Author and A. SCHUSTER, F. R.S. With coloured

Life and Experiences. Written by Himself. Illustrated. 8vo. 125. net.

FIFTH EDITION, ENTIRELY RE-WRITTEN AND ENLARGED.

Chemical Technology and Analysis of Oils,

Fats, and Waxes. By Dr. J. LEWKOWITSCH, M. A., F.I.C., Consulting and Analytical Chemist and Chemical Engineer, Examiner in "Soap Manufacture" and in "Fats and Oils" to the City and Guilds of London Institute. Edited by GEORGE H. WARBURTON. Fifth Edition entirely re-written and enlarged. In 3 Vols. Illustrated. Med. 8vo. Vol. I. 255. net. [Ready.] Vol. II. 25s. net. [Ready.] Vol. III. [Immediately. ]

MACMILLAN AND CO., LTD., LONDON.

« PreviousContinue »