THE ANALYST xiIMPERIAL COLLEGE OF SCIENCEAND TECHNOLOGYSOUTH KENSINGTON,Lomom-, s.w.7PHYSICS DEPARTMENT(Technical Optics Section)A COURSE OF EIGHT LECTURESbYonM I C R O S C O P Ywill be given onTuesdays and Thursdays at 4 p.m., commencing onTuesday, 15th January, 1952The lectures, which will be accompanied by practicaldemonstrations will include modem advanced methods inmicroscopy. ?hey will be suitable for those having to usethe microscope in technical practice.B. K. JOHNSON, D.I.C.,Application for admission should be made to the Registrarof the Imperial College, prince Consort Road, S.W.7. Thefee is €2 2s. Od. for the Lectures. Students of the College andInter-Collegiate students will be admitted free (on productionof an Inter-Collegiate ticket).ANALYTICAL CHEMISTS.Three required with BSc.,A.R.I.C. or equivalent qualifications for MetallurgicalAnalysis in Laboratories to be erected in Birmingham.The positions are permanent and pensionable, applicantsshould not be over 36 years of age. State age, qualificationsand experience to Personnel Manager, Henry Wiggin &Co., Ltd., Wiggin Street, Birmingham, 16.VACANCY exists for a male chemist for analysis of castAiron and related materials. Age preferably 20 to 30.Previous analytical experience of ferrous alloys an advantage.Applications should be sent to British Cast Iron ResearchAssociation, Bordesley Hall, Alvechurch, Birmingham.ANALYTICAL CHEMIST required to control AnalyticalLaboratory of Industrial Research Organisation in NorthKent, BSc.or A.R.I.C., age about 30. Candidate should beinterested in analytical work, conversant with modemtechniques and able to train and supervise junior staff. Postis permanent and pensionable. Basic commencing salary€500 to €600 per annum, depending on qualifications. WriteRox No. 3796, THE ANALYST, 47, Gresham Street, London,E.C.2.N EXPERIENCED ANALYTICAL CHEMIST with adegree will accept a post with a public analyst, whereWrite Box No. 3795, THE future partnership is possible.ANALYST, 47, Gresham Street, London, E.C.2.XPERIENCED ANALYST required to take charge ofEAnalytical Department in research and control unitApplicant to sess qualifications in chemistry of B.Sc. 0;A.R.I.C. s t a n a , with pharmaceutical qualifications and/orexperience in the analysis of pharmaceuticals and finechemicals. A five-day week and a pension scheme are inoperation.Apply stating full details of age, qualificationsand experience to the Pharmaceutical Development Director,Evans Medical Supplies Ltd., Speke, Liverpool, 19.NALYST May & Raker Ltd Dagenham Essex have aAvacancy h their Analytical ‘bntrol Ladorat06 for anassistant holding either the BSc., A.R.I.C., B.Pharm., orPh.C. qualification. Salary according to age, qualificationsand experience. Contributory Pension Scheme. Five-dayweek. Apply initially in writing to the Personnel Officer,quoting referen6e No. 8616.SSISTANT CHEMIST required for the anal sis of copperAand nickel base alloys, stainless steel.$nowledge ofspectrographic analysis an advantage. Salary according toage, quaIifications and experience. Applications, PersonnelDepartment, Langley Alloys Ltd., Burks.UALIFIED ANALYST required for new laboratory at 0 Loughton Essex. General analytical experience necessaryand acquaintance with organic intermediates. An adequatesalarywill be paid to a suitable Applicant. Details to WorksController, Ozalid Company Limited, 19, Queensway, Enfield,Middlesex.NATIONAL COAL BOARD-NORTH-WESTERNDIVISIONPPLICATIONS are invited from Graduates with a F k tSecond Class Honours Degree in Chemistry for the postof Scientist, Grade 111, at the Central Laboratory, ShadeHouse, Swinton. The salary will be in the scale L445 x L25to 5845, and the commencing salary will be commensuratewith qualifications and experience.The successtul applicantwill be expected to undergo a medical examination forentrance into the Board’s Superannuation Scheme. Applica-tions, giving full details of age, experience and qualifications,should be submitted to the Divisional Establishment Officer,National Coal Board North-Western Division 40 PortlandStreet, Manchester, 1: within fourteen days of h i s advertise-ment.NATIONAL COAL BOARD-NORTH-WESTERNDIVISIONPPLICATIONS are invited for the post of Scientist,AGrade I1 in the No 4 (Burnlev) Area Laboratory atAltham Cokk Works, Ahham, Acc;ington. This appoint-ment will be within the scale 6645 x &40-&995, and thecommencing salary will be according to qualifications andexpenence. Candidates should possess an Honours Degreein Science or the equivalent, and have had several years’industrial experience. The successful applicant will beexpected to undergo a medical examination for entrance intothe Board’s Superannuation Scheme. Applications givingfull particulars of age, education, qualifications and experience(with dates) should be sent to the Divisional EstablishmentOfficer, National Coal Board, North-Western Division, 40Portland Street, Manchester, 1, within fourteen days of thedate of this advertisement.THERE are thirty - sixtypes of JOHNSONtest books and indicatorpapers available to chem-ists, analysts and worksmanagers for testing thepH value of products inthe course of manufacture.LITMUS (PURE GRAN)can also besupplied inany quantityJOHNSONS of HENDON LTDLONDON, N.W.4