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Minerals : 50 Slides ...
65 12 50 Slides...
£3 10 The Structures of Rocks : 36 Slides
£2 10 5. Collection of typical Rocks, taken in ordinary light : 100 Slides
47 0 60 Slides ...
taken under crossed nicols : 75 Slides
62 2 3. Tectonic Geology : 30 Slides...
62 2 za. Protozoa (Foraminifera, Radiolaria): 25 Slides
£1 15 0 4. Pisces : 30 Slides ...
£2 2 5. Amphibia : 12 Slides 6. Reptilia and Aves : 50 Slides
£3 10 7. Mammalia : 70 Slides
65 0 The collection of slides of Volcanoes and Crystallography will soon be ready.
Detailed Catalogue of Lantern slides in preparation ; prospectus post free. Single slides are sold at is. 6d. each.
Dr. F. KRANTZ,
ALBERT EDWARD JAMRACH
(Late CHARLES JAMRACH),
NATURALIST, 180 ST. GEORGE STREET EAST. Implements of Savage Warfare, Idols, Sacred Masks, Peruvian Pottery,
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WATKINS & DONCASTER,
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Technical Schools, and for Private Study.
ALL LISTS FREE OF
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LIVING SPECIMENS FOR
THE MICROSCOPE. Valvox, Spirogyra, Desmids, Diatoms, Amcba, Arcella, Actinosphærium, Varicella, Stentor, Hydra, Floscularia, Stephanoceros, Melicerta, and many other specimens of Pond Life. Price is. per Tube, Post Free. Helix pooatia, Astacus, Amphioxus, Rana, Anodon, &c., for Dissection purposes.
THOMAS BOLTON, 23 BALSALL HEATH ROAD, BIRMINGHAM.
AND MANUPACTURERS OP CABINETS AND APPARATUS FOR ENTOMOLOGY, BIRDS' EGGS AND SKINS, AND ALL
BRANCHES OF NATURAL HISTORY
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true to Nature.
COLLECTIONS IN POLISHED DEAL BOXES.
20 Coal Measure Rocks and Fossils, 12/6; do., larger, 15/-. Adapted for the Board of Education Examinations in
Geology, Physiography, and Mineralogy.
selection. Specimens sent on approval.
Boxes, Models of Crystals, &c., &c.
NEW CATALOGUE POST FREE. THOMAS D. RUSSELL, 78 Newgate St., London, E.C.
MARINE BIOLOGICAL ASSOCIATION
OF THE UNITED KINGDOM.
THE LABORATORY, PLYMOUTH. The following animals can always be supplied, either living or preserved by the best methods :
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IMPORTANT ANNOUNCEMENT. D'Arsonval's Latest (1904) Apparatus,
DISPENSING WITH COILS & INTERRUPTERS. X-RAYS & HIGH-FREQUENCY CURRENTS.
For producing, perfectly regulating, and exactly measuring
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SIMPLE IN MANIPULATION. This apparatus has been already installed by many of the chief workers in Electro-Therapeutics in France and England.
Descriptive Pamphlet gratis on applica.ion from the Sole Agents for Great Britain and its Colonit sTHE MEDICAL SUPPLY ASSOCIATION,
228 GRAY'S INN ROAD,
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ELECTRO-THERAPEUTICS. WATSON'S NEW PATTERN HIGH-FREQUENCY APPARATUS INCREASED OUTPUT.
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BRANCH-16 Forrest Road, Edinburgh. DEPOT-78, Swanston Street, Melbourne, Australia. COUNTRY HOUSE LIGHTING
GAS PLANT. GAS ENGINE AND DYNAMO. Electric Current for 100 16-c.p. lamps can be obtained for ONE PENNYWORTH of fuel per hour by using a CROSSI EY GAS ENGINE and Dynamo combined, running on a CROSSLEY SUCTION GAS PLANT.
Full particulars and testimonials on reference to CROSSLEY BROS.. LTD., OPESHA
DALLMEYER'S NEW TELEPHOTO LENS.
Can be used in front of any THE ADON (RECISTERED
Mounted in Aluminium. small lens without disturbing
Measures 31 ins. long, it ins. plates or films which may be
diameter, weighs 4 ounces. in position.
you bellen onth
PRICE, including Solid Leather Can be used alone for higher
Case, £3 10 O nett. magnification or larger plates.
ILLUSTRATED BOOKLET with An excellent lens for all
Specimens of Work artistic photography.
FREE. J. H. DALLMEYER, LTD., 25 Newman St., London, W. Printed by RICHARD CLAY AND SONS, LIMITED, at 7 & Bread Suect Hill Queen Vilt tú 116er, in the City o London, and published by MA YIAN
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A WEEKLY ILLUSTRATED JOURNAL OF SCIENCE
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No. 1829, VOL. 71) THURSDAY, NOVEMBER 17, 1904.
[PRICE 15 CENTS.
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VERLAG VON CUSTAV FISCHER IN JENA.
Bisher erschien Lieferung 1 und 2 von : Physiologie des Menschen. Von Dr. LUIGI LUCIANI,
Prof. der Physiologie und Direktor der physiologischen Institute der k. Universität von Rom. Ins Deutsche übertragen und bearbeitet von Dr. SILVESTRO BAGLIONI und Dr. HANS WINTERSTEIN mit einer Einführung von Dr. Max Verworn, Prof. der Physiologie und Direktor des physiologischen Instituts der Universität Göttingen. Vollständig
in etwa 12 Lieferungen zum Preise von je 4 Mark.
Von B. HALLER, a. o. Professor der Zoologie an der Universität
Preis: 6 Mark. Zweite (Schluss-) Lieferung. Mit 466
Preis des ganzen
PETER Breslau. Mit 4 Tafeln und 14 Figuren im Text. 1904. (Bildet zugleich Heft IV der “Normentafeln zur Entwicklungsgeschichte der Wirbeltiere," herausgegeben von Prof. Dr. F. Keibel, Freiburg i. Br.) 1904. Preis: 25 Mark.
SCIENTIFIC INSTRUMENT MAKERS, 3 FLEET ST., LONDON.
A Gold Medal for Optical Lanterns.
A Gold Medal for Lantern Slides.
Wireless Telegraphy and X-Ray Work.
A Bronze Medal for Armillary Sphere.
CO., OPTICIANS TO HIS MAJESTY THE KING and H.R.H. THE PRINCE OF WALES and the GOVERNMENT,
3 FLEET ST., LONDON.
EAST LONDON TECHNICAL
HOLLOWAY, LONDON, N.
(Close to Holloway Stn., G.N.R., and Highbury Stn., N.L.R.) Mathematics
W. F. S. CHURCHILL, M.A.
LONDON UNIVERSITY SCIENCE AND ENGINEERING
Day and Evening Courses in the above under recognised teachers inElectrical Engineering
J. T. MORRIS, A.M.I.E.E.
ENGINEERING. years' technical courses in Chemistry and Engineering, and three years' courses for London University Degrees (Pass and Honours).
Separate Laboratories for Elementary, Advanced and Honours students, EVENING CLASSES are held in Advanced Technical and Scientific exceptionally large and well equipped. subjects, and for London University Degrees.
RESEARCH. Valuable SCHOLARSHIPS are awarded by the Drapers' Company in connection with the Day Classes.
Accommodation and apparatus provided for research in either Pure or CALENDAR with full particulars post free, 4fd.
Applied Chemistry and Physics, and Engineering, in rooms specially
adapted for this purpose. J. L. S. HATTON, Director of Studies.
Full particulars at the Institute or sent on receipt of postcard.
REG. S. CLAY, D.Sc., Principal.
COUNTY OF LONDON.
The London County Council is prepared to receive applications for the
post of DEMONSTRATOR in ENGINEERING at the London Principal
CHARLES A. KOHN, M.Sc., Ph.D., F.I.C. County Council PADDINGTON TECHNICAL INSTITUTE, Saltram EVENING CLASSES in CHEMISTRY, METALLURGY, Crescent, W. Candidates should possess good qualifications in Electrical PHYSICS and MATHEMATICS designed to meet the requirements of Engineering, and have some Mathematical training. The commencing those engaged in CHEMICAL, METALLURGICAL and ELECTRICAL salary will be £150 per annum. The duties will commence immediately. INDUSTRIES and in trades associated therewith.
and the appointment will be subject for its termination to three months Also preparation for the B.Sc. Examination of London Uni. notice on either side. The person appointed will be required to give his versity.
whole time to the duties of the office; to contribute, if desired, to the Chemistry
Council's Superannuation and Provident Fund; and to be subject to the and H. BURROWS, A.R.C.S., Ph.D., F.I.C. conditions attaching to similar appointments in the Council's service. Physics R. S. Willows, D.Sc., M.A.
Applications must be made on the official form to be obtained from the Metallurgy C. O. BANNISTER, Assoc. R.S.M.
Clerk of the London County Council, Education Offices, Victoria Embank, Mathematics G. M. K. LEGGETT, B.A.
ment, W.C., to whom they must be returned not later than 10 a.m. on Every facility for special and advanced practical work in well-equipped
Wednesday, November 23. 1904. Canvassing either directly or indirectly laboratories both in the afternoon and evening.
will be held to be a disqualification for appointment. The Institute is readily accessible and near to Fenchurch Street, Liver.
G. L. GOMME, pool Street, Broad Street and Metropolitan Railway Stations.
Clerk of the London County Council. For details of the Classes apply at the Office of the Institute, or by
Victoria Embankment, W.C. letter to the PRINCIPAL.
November 12, 1904.
COUNTY BOROUGH OF WEST HAM. A CHRISTMAS COURSE OF LECTURES.
MUNICIPAL TECHNICAL INSTITUTE.
DEMONSTRATOR in MECHANICAL ENGINEERING. Salary,
Candidates must have read the Circular giving particulars of the duties
attached to the post, copies of which may be obtained by sending a fully ALBEMARLE STREET, PICCADILLY, W. addressed envelope io ihe PRINCIPAL, Municipal Technical Institute,
West Ham, E. HENRY CUNYNGHAME, Esq., C.B., M.A., M.Inst. E.E., will All applications must be lodged with the PRINCIPAL before noon, deliver a Course of Six Lectures (adapted to a Juvenile Auditory) on December 5, 1904. " ANCIENT AND MODERN METHODS OF MEASURING TIME" (Experi
By Order of the Council, mentally Illustrated), commencing on Tuesday, December 27, 1904, at Three
FRED. E. HILLEARY, Town Clerk. o'clock; to be continued on December 29, 31; and January 3, 5, 7, 1905. Education Department, West Ham, E.
Subscription (for Non-Members) to this Course, One Guinea (Children under sixteen, Half-a-Guinea); to all the Courses in the Season, Two Guineas. Tickets may now be obtained at the Institution.
SOMERSET COUNTY EDUCATION
COMMITTEE. UNIVERSITY COLLEGE, LONDON. WANTED for the YEOVIL COUNTY SCHOOL (Public Secondary (UNIVERSITY OF LONDON.)
School for Boys) immediately after Christmas, AssistANT MASTERS as
follows:A Course of Eight Lectures on "Current Theories of the Hereditary
Science and Mathematics ...
£150 Process" will be given at Five o'clock on the following Tuesdays :
Modern Foreign Languages and General
4100 November 22 and 29, December 6 and 13, January 24 and 31, February 7.
English Literature and General
100 and 14, by W. F R. WELDON, M.A., D.Sc., F.R.S., Linacre Professor of
qualified men only. Applications not later than December i to the Comparative Anatomy in the University of Oxford.
COUNTY EDUCATION SECRETARY, Weston-super-Mare, from whom partiSyllabuses and Cards of Admission may be obtained gratis by members
culars can be obtained. of the University and of Schools of the University, and on payment of ros. 6d. by others. WALTER W. SETON, M.A., Acting Secretary. THE COUNCIL OF THE BRITISH
ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE are about to appoint an ASSISTANT SECRETARY at a salary of £300 per annum... Candidates should apply to the undersigned, with
statement of qualifications, before December 2. PRACTICE)
P. A. MACMAHON In BIOLOGY, BOTANY, CHEMISTRY and PHYSIOLOGY for
W. A. HERDMAN
} MEDICAL EXAMS.
Burlington House, Piccadilly, London, W.
PATENT OFFICE APPOINTMENTS. (Registered in Column B (Advanced Education). Teachers Registration MECHANISM. A Special Course of Instruction in Mechanism for the Councii, Board of Education, S.W.),
Examination in January is given on Saturdays at a p.m. 49 and 51 IMPERIAL BUILDINGS, LUDGATE CIRCUS, E.C.
Birkbeck College, Breams Buildings, Chancery Lane, E.C.
COACHING (THEORY AND
2.000.000 Unit Strength.
DEPARTMENT OF TECHNOLOGY.
REPORT of the WORK of the DEPARTMENT for the SESSION
2 tubes of 5 mgs. each and 1 tube of 2 mgs. UNIVERSITY COLLEGE OF WALES,
ON HIRE. ABERYSTWYTH. ASSISTANT LECTURESHIP IN MATHEMATICS. The Council invite applications for the post of ASSISTANT IECTURER in MATHEMATICS at the above College. Applications, t gelter with copies of testimonials, must reach the undersigned, from whom fuil particulars may be obtained, no later than Monday, December 5, 1994. A new radio-active substance from T. MORTIMER GREEN, Registrar.
Pitchblende. It gives large and more BEDFORD COLLEGE FOR WOMEN.
effective sparks on a phosphorescent (UNIVERSITY OF LONDON.) YORK PLACE, BAKER STREET, W.
screen than Radium or Polonium, and The Council are about to appoint a Lady as HEAD of the TRAINING DEPARTMENT.
Applications must be sent by November 25 to the Secretary of the is considered better for the SpinCollege from whom further information may be obtained.
H. WALTON, Secretary. thariscope. CIVIL SERVICE COMMISSION.
A few decigramme tubes for sale at
30/- the decigramme.
Sample Bottle 1/6 Post Free. CENTRAL TECHNICAL SCHOOLS ARMBRECHT, NELSON & CO., FOR CORNWALL, TRURO.
71, 73 DUKE ST., GROSVENOR SQ., LONDON, W. The Committee requires an ANALYTICAL CHEMIST with a sound kweledge of agriculture capable of teaching, and also to assist the Principal, Professor Clark. The appointment is for one year, but may tecome permas ent. Salary, £200. Fur ber particulars may be obtained frm the SECRETARY. Applications, with testimonials, should be sent not Later than November 29.
A. BLENKINSOP, Secretary. Princes Street, Truro.
NEW PATTERN AUTOMATIC ARC-LAMP November 15, 1984.
FOR HACKNEY INSTITUTE,
LABORATORY WORK. DALSTON LANE, LONDON, N.E. The Governing Body require the services of an ASSISTANT
125 Candle Power. LECTURER in the Chemisury Deparıment on two evenings per week. bor, 155. per evening of 24 hours.
A low power Lamp, invaluable as Application, with testimonials, to be sent to the Secretary not later
LOVNO han November 30, 1904.
white light illuminant for
Microscopic, TO SCIENCE AND MATHEMATICAL
Spectroscopic, MASTERS.- January (1903) Vacancies. Required (1) Two Masters
and Photographic Work. for Mathematics and Experimental Physics. Salaries, £160 and £150 respectively, (2) Science and Drawing: £150. · (3) Chemistry and Physics. 1100, resident. (4) Graduate for Science and Form work.
SPECIFICATION. – Automatic Arc £100, resident. For particulars of the above and many other vacancies,
Lamp in nickel-plated ventilated cover, address GRIFFITHS, SMITH, Powell & SMITH, Tútorial Agents (Estd.
suspended on adjustable stand with
self-contained resistance, fine centreing 1833), 34 Bedford Street, Strand, London.
adjustment by screwed nut suspension.
As open or closed arc, requires only is Substantial English Company desires to
amperes on 100/110 volt direct current
circuit. Complete with flexible cord extend its business by acquiring the Writish and Colonial rights of a
and plug, for instant attachment to new Chemical Product which is likely to be used on a very large
ordinary bayonet lamp socket. scale for Industrial purposes. Advertisers have exceptional facilities
Burns 20 hours without attention. for expluiting an invention of this kind. Offers, with full particulars, to be sent to Box 101, 1. B. Browne's Advertising Offices, 163 Queen
With Stand (as shown), Victoria Street, E.C.
£4 : 10:0
Lamp only, Englishman (27), with Five Years' German
£2 : 15:0 L'niversity Training and Ph.D. degree, speaking German Auently, des.res situation in Manufactory, preferably of Dyes or Organic finan
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TYPE-WRITING UNDERTAKEN BY
HIGHLY EDUCATED WOMEN ACCUSTOMED TO SCIEN-