clxii 



NA TURE 



[March i6, 1899 



TECHNOLOGICAL EXAMINATIONS, 



1899. 

 CITY AND GUILDS OF LONDON INSTITUTE. 



The Inslilutc's Examinations in Technology will be held on April 26, 

 29. May I, 2, 3, 4, 6, 8, 9, 12, ij, June j and 10. 



All Applications from Local Secretaries for Examination in Technologj* 

 must be forwarded to the Institute on or before March 20. 



Only in exceptional cases, and by payment of an additional Fee, can 

 Applications be received from Local Secretaries after that date. 



Candidates in Technology, not attending any registered class, should 

 apply at once to the Secretary of the nearest Local Centre. 



.Applications from any individual Candidates for E.xamination at the 

 Offices of the Institute, should be made not later than March 30, addressed 

 'to the Examinations DlifAKTMENT, City and Guilds of London Institute, 

 Exhibition Road, London, S.W., and should be accompanied by a Postal 

 Order for the amount of the Fee, the subject and Grade of Examination 

 being clearly staled. 



LONDON UNIVER.SITV. 



B. PRELIMINARY SCIENTIFIC & B.Sc. 

 Q XJ £3 XS. ^r IVE O XS, £2 . 



l.undon Kranches-(i) ..4 CHANCEKV LANE, W C. ; (2) 113 EBURY 

 STREET, EATON SQUARE, S.W. 

 Special Preparation by JOHN GIBSON, M.A. (First Class, Cambridge), 

 and G. LOLY, B.A. (First Class, London), assisted by large Staff of 

 Specialist Tutors. Practical Laboratories. Write fur particulars to Messrs. 

 Gibson & Lolv, 24 Chancery Lane, W.C. 



THE ELECTRICAL 



GENERAL ENGINEERING COLLEGE, 



experimental" ENGINEERING 

 WORKS, 



2 and 4 PENYWEKN ROAD, EARL'S COURT, 

 LONDON, S.W., 

 Trains Students for Electrical, Mechanical and Mining Engineering. 

 Develops Electrical and Mechanical Patents. 



Constructs Experimental and Special Machinery and Models to 

 Specification. 



COACHING. 



CHEMISTRY, THYSICS, BIOLOGY. 



All Examinations— Conjoint Board, University of London, D. P. H., &c.. 



Theoretical and Practical. Small Classes or Private Tuition. Well-fitted 



Laboratories. Practical Forensic Medicine.— " R. C," 9 Heathcote 



Street, Gray's Inn Road, London, W.C. 



and Inter. So. Hons. 



ith. For full particulars apply to R. C. 

 e, 55 Chancery Lane. (Classes for all 



BOTANY B.Sc. 



A Special Course starts next ir 

 B. Kekin, B.A., Carlyon Coll 

 London University Examination-..) 



BRUNTS TECH NICAL SCHOOL, 

 MANSFIELD. 



An ASSISTANT MASTER is Wanted in the above School of Science, 

 to teach Woodwork and able to assist in the Chemical or Physical Labor- 

 atory. Salary, ^^90 to .£100 per Annum. 



Apply, giving qualification, age, experience and references, to 

 C. E. ST.\CEY, B.A., B.Sc . 



RESEARCH. 



CHEMISTRY and PHYSICS. 



Well-fitted LABORATORIES can be used for Research at any h.iur 



convenient 10 Workers. Dark Room for Photographic and other Work. 



Workshop for making Apparatus. Electric Mains for Experiments.— 



"T." 9 Heath cote Street. Gr.->ys Inn Road, W. C. 



ADDEY AND STANHOPE SCHOOL. 



Present Address. CHURCH STREET, DEPTFORD. 



After .Midsummer, NEW CROSS ROAD, S.E. 



WANTED, on April 10th, an additional SCIENCE .\I.\STER for the 



above-named School of Science. Chief Subjects : Physics, Chemistry, 



Geometry and Mathematics, Previous Laboratory experience essential. 



One accustomed to " Heuristic " Methods preferred. 



Salary i,\^o per annum, payable monthly. Apply before Wednesday next 

 to the Headmaster. 



MEMORY 



(LOISETTES SYSTEM). 



THE SCHOOL OF MEMORY TRAINING, 



Hk 



SCIENTIFIC DEVELOPMENT OF THE NATURAL MEMORY. 



The late Rd. A. Pkoctok (Editor of KHOwU.ijit) said : " I have no 

 belitation in thoroughly recominendinB the sy.stem." 



Success AT Exams. Minii Wanuekinq Cuked. Speaking without 

 Notes, How to successfully study all Branches of Science, Mathe* 

 1.IATICS, Classics, &c. Prospectus post free on application to the Secretary. 



PARTNER WANTED in a SCIENTIFIC 



MANUKACTCKING BUSINESS, with ^3000 to 1%.^. WuuM 

 suit Scientific Man or Son ; exceptional opening ; Capital wanted to 

 enlarge the Business and carry out the Orders in hand, and to enable 

 the increasing demand to be met. Profits very large. — Address 

 " SciE.NTiFic," care of Natuke Office. 



WANTED, an ANALYTICAL CHEMIST 



xperi- 



of exceptionally high and proved ability and 

 ence in testing Medical Chemicals, to t: 

 Analyst at the Works of a leading Lond 

 Chemists. A gentleman who has taken Ur 

 — Address, stating age, qualifications, and 



Ma 



AKT, & Co 



57 Cole 



th cood < 

 he position of Chit 

 irm of Manufacturing 

 ty Degrees preferred. 

 penencc, to " .\nalysi," 



Street, Londo 



WANTED.— POWELL AND LEALAND 



Sales b? auction. 



.MONDAY, TltsriAV, WEDNESDAY. MARCH 20, 21, 22. 

 FIRST PORIION OF THE RE.MAINING COLLECTIONS OF 

 THE KKW |;i;E art SOCIETY, the KEW KKE LITERARY 

 SOCIETY, AND THE E.MPIRE ANTIyUARIAN SOCIETY. 



MR. J. C. STEVENS will Sell the above 



by Auction at his Great Rooms, 38 King Street, Covenl Garden, as 

 above, at 12.30 precisely each day. 

 On view S.iturday prior 10-4, and Mornings of Sale. Catalogue in 

 preparation. 



MONDAY AND TUESDAY, MARCH 27 I'i: 28. 

 IMPORTANT SALE OF COLEOPTERA AND OTHER INSECTS. 



MR. J. C. STEVENS will Sell by Auction 



at his Great Rooms, 38 King Street, Covent Garden, as above, at half- 

 past 12 o'clock e:ich day, the valuable Collection^ of Coteoptera and 

 other Orders of Insects formed by the late Mr. Stei'HEN Barton 

 ig the last tifty years, together with the Cabinets, Books, Store 



Bo 

 On > 



, &c. 



r Saturday pri 



10-4, and Mo 

 preparation 



ngs of Sale. Catalogu 



CARL ZEISS, 



OPTICAL WORKS, JENA. 



London Branch : 



29 MARGARET STREET, REGENT 



STREET, W. 



MICROSCOPEiS and ACCBSSORIBS 



— For Bacteriology, Biology, Mineralogy and 

 Student's use. — Apochromatic, Achromatic 

 Objectives —Micrometers, &c. 

 OPTICAL MEASURING INSTRU- 

 MENTS.— Sphcrometers, New Crystal Re- 

 fr.-ictumetcr, Butter-Refractometer for the rapid 

 determination of the purity of Butter, Laid, and 

 Glycerine. 



Note. — We do not make Theodolites. 

 Illustrated Catalogues, incluiling <i«i' edition 

 ( 1 S93) of Catalogue of Microscopes, free. PUast 

 sta t e Vfhi<h retjuired. 



AERIAL GRAPHOSCOPE 



BRUCE'S PATENT). 



Showing Lantern Pictures in SPACE and BOLD RELIEF without 

 a Screen, and Weird Ohost Effects ,ind Fairy-like Visions. 



Exhibited with enormous success at the Soirees of the Royal 

 Society, the Royal Institution, Riyal Photographic Society, British 

 Association, Crystal Palace, Birmingham and Midland Institute, &c. 



SuppUed to Owens Cjllege, Mmohester; School of Army Slgnal- 

 Ung; Queen's Ttioatre, Manchester: Hermanns Magical Entertain- 

 ment, New York. 



The Apparatus can be purchased outright, or let out on hire. 

 Exhibitions cm also bo .arranged at all kinds of Entertainments, 

 Soirees, Photogr.aphlo Exhibitions, &o , with experienced Operators. 



The inventor. Mr. Eric Stuart Bruce, MA. Oxdu., F.R, Met. Soc, is 

 also prepared to accept engagements for his Illustrated L30ture on 

 the subject as delivered before the Society of Arts, London Insti- 

 tution, See. 



The Instrument formi the most parfeot method of illustrating 

 the .phenomena of Persistence of Vision to large audiences ; It also 

 atfords a most delicate teat of the exact duration of Persistence on 

 the individual retina. 



/','/ all farlicuhirs apply to 



E. S. BRUCE, Esq., 



n CAMPDEN HOUSE ROAD, KENSINGTON, LONDON, W. 



