May, 19661 THE ANALYST xiiiThe rate for classified advertisements is 7s. a line (or spaceequivalent of a line), with a n extra charge of 2s. for theuse of a Box Number. Semi-displayed classifiedadvertisements are 80s. for single-column inch.Copy required not later than the 20th of the month pre-ceding date of publication which i s on the 16th of eachmonth. Advertisements should be addressed to ?’he 11 Analyst, 47 Gresham Street, London, E.C.2. Tel.:MONarch 7644.ANALYTICAL CHEMISTSDue to thc demands of increased production, vacancies havearisen in the analytical laboratories for four analyticalchemists. The company manufacture a wide variety ofinorganic and organic compounds, both for the Home andOverseas markets.The analytical techniques used in the laboratories rangefrom the classical to the latest instrumental techniques.These coupled with the diversity of chemicals to be analysed,ensure variety and interest in the work.Chemists betweenthe ages of 1 9 years and 25 years having either O.N.C. orH.N.C. in Chemistry preferably with experience in analysisare invited to apply.Salaries will be commensuratc with age and experience.Please write quoting reference number 34 to:-The Personnel Manager,HOPKIN & WILLIAMS LTD.,Freshwater Road,Chadwell Heath,Essex.RENTOKIL LABOR..ZTOlZIES LID.,Webbcr Road, Kirkby Industrial Estate, Liverpool.require an ANALYTICAL CHEMIST to develop methods ofanalysis for quality control. Candidates, preferably agcdbetween 21 arid 25 years, should posscss degree, L.K.I.C.orH.N.C. and havc similar previous expcricnce.This is a responsible appointment and high standards areessential, Salary will be commcnsuratc with qualificationsand experience. Conditions of employment within theCompany, spccialists in the manufacture and application ofPESTICIDES, arc above average arid include 3 weeks’annual holiday, pension and bonus schemes after qualifyingperiod.Write for application form to Miss A. Keating.THE CITY ANALYST’S DEPARTMENTKINGSTON C‘PON HULLApplications are invited for the post of Assistant Chemist inSalary on scale A.P.T. IIl/IV, Ll,ON-L1,555.Commencing salary dependcsnt upon experience.Minimum qualification required is G.R.I.C. (or equivalent).Recently qualified applicants will be considered.Encourage-ment is given to stiidy for Branch E Diploma of RoyalInstitute of Chemistry.The usual Local Government Conditions of Service willApplication fornis can be obtained from the City Analyst,the above department.apply.184 High Street, Kingston upon Hull.CHIEF ANALYSTThe Union International Co Ltd. wishes to appoint an experienced man aged about 35/40 to take charge of itsThe post is permanent and pensionable and an attractive salary will be offered to the rigllt applicant whoThis year’s holiday arrangements will be respected. Please write fully to Staff Manager, 14, Wtst Smithfield,well equipped Analytical Laboratory in London.must be a F.R.I.C. (Branch E).London, E.C.l.RESEARCH ANDDEVELOPMENTA SENIOR CHEMIST is required to take charge of the analytical depart-ment of the food research laboratories of the Ranks Hovis McDougallGroup at High Wycombe.The work involves the examination of a variety of food products togetherwith research into analytical techniques, and the post carries with it anattractive salary and excellent prospects of advancement in an expandingorganisation.Candidates should preferably be between the ages of 30 and 35, and shouldpossess either a Ph.D.or FRIC (branch E). Previous experience in foodanalysis and familiarity with modern techniques together with an aptitudefor research are essential. Applicants must also possess qualities of leader-ship and the abiltiy to control staff.APPly in writing t o :The Research Manager,Cressex Laboratories, Lincoln Road, High Wycombe, Bucks.Ranks Hovis McDougall (Research) Ltd.[May, 1966 xiv THE ANALYSTNALYTICAL CHEMIST.Young Graduate or equivalentArequired by Public Analysts and Consulting Chemistsfor analysis of wide variety of materials including foods,drugs, waters, trade effluents. Professional salary offered.Bostock Hill & Rigby, 37 Birchfield Road, Birmingham, 19.SSISTANT ANALYSTS, who are not interested in repeti-Ative routine work, but in experience and variety, requiredfor an expanding laboratory.The work covers samples undcr the Food and Drugs Act,the National Insurance Drug Testing Scheme, control analysesfor manufacturers, and advisory and legal problems. Appli-cants should preferably possess H.N.C., but a t least several‘0’ level certificates with practical experience.Part-timerelease for study if required. Salary according to age,qualifications, and experience. Apply Thomas McLachlan,4 Hanway Place, London, W.l.BRITISH CHEMICALSTANDARDSNew Thermochemical StandardB.C.S. No. 190j Benzoic AcidWith Calorific Value certified by theNational Physical Laboratory.Full particulars sent on request.BUREAU OF ANALYSEDSAMPLES LTD.Newham Hall, Newby, Middlesbrough, Yorks.Allen & HanburysLi m itedControl DivisionThe following vacancies exist in the Control Division of Allen &Hanburys Limited at Ware, Hertfordshire.(a) A GRADUTE CHEMIST is required in the Spectroscopy Sectionof the Analytical Research Department.Applicants should haveexperience or interests in physical organic chemistry, particularlyin infra-red and n.m.r. interpretation. Applications would also beconsidered from recently graduated chemists who have an interestin this work and who are keen to gain experience in this field.(b) A TECHNICAL ASSISTANT is required in the Analytical ResearchDepartment. Previous experience of instrumental analyticalmethods, especially infra-red and n.m.r. spectroscopy, would be anadvantage, especially if combined with a knowledge of organicand physical chemistry. Applicants should preferably possess arecognised qualification, such as L.R.I.C., H.N.C. or O.N.C.(6) AN EXPERIENCED ANALYTICAL ASSISTANT is required inthe Laboratories of the Analytical Control Department to under-take a variety of careful determinations, including the use of in-strumental techniques, applied to pharmaceutical dosage forms andmedicinal chemicals.Applicants should have had at least five years’experience in the analysis of pharmaceutical or allied products andshould preferably possess a recognised qualification, such asL.R.I.C. or H.N.C.Applicants are invited to write to the Personnel Manager, givingdetails of age, qualifications and experience and state clearly in whichof the three they are interested, quoting reference number TA2xvi THE ANALYST [May, 1966CENTRAL RESEARCH DEPARTMENTANALYTICAL CHEMISTSREF. W.R.To cope with the work required by this growing groupof companies, a planned expansion of the department isin progress.We require:SENIOR INVESTIGATOR(Graduate or equivalent)SENIOR ASSISTANT(H.N.C.or equivalent)for the development of physico-chemical methods ofsteel and slag analysis.Candidates must have experience in one or more of:-Chemical analysis, instrumental methods, gases in steel,statistics.Write for an application form to:-Staff Recruitment Officer,Colvilles Limited,Dalzell Steel Works,MOTHERWELLxviii THE ANALYST [May, 1966Pergamon International Series of Monographs in Analytical ChemistryGeneral Editors:Ronald Belcher, D.Sc., Professor of Analytical Chemistry, University of Birmingham, and LouisGordon, Ph.D., Professor of the Department of Chemistry, Case Institute Technology, Cleveland, Ohio.This series supplies the first really effective and authoritative account, in an accessible and definiteform, of those important new developments in analytical chemistry which occur so rapidly in thefield.These works, furnishing in useful detail the theory and practice of (1) special techniques, (2)rapiding expanding branches of analytical chemistry, and (3) applied methods widely used inparticular industries, should be of great value to all chemists.MONOGRAPHS PUBLISHED IN THIS SERIES:Microanalysis by the Ring Oven Technique by H. Weisz1 12 pages 3OS./$5.00Applied Gamma-Ray Spectrometry edited by C. E. Crouthamel443 pages 5Os./$6.50Analytical Chemistry of the Rare Earths by R. C. Vickery139 pages 40s./$6.50Photometric Titrations by J. B. Headridge131 pages 45s./$7.50The Analytical Chemistry of Indium by A.I. Busev288 pages 84s./$12.50Atomic-Absorption Spectrophotometry by W. T. Elwell and J. A . F. Gidley1 10 pages 30s./$5.00Gravimetric Analysis, Parts 1, 2 and 3 by L. ErdeyPart 1 : 332 pagesPart 2: 790 pagesPart 3 : 3 12 pages50s./$7.50S6/$18.5050s./$7.50Organic Functional Group Analysis by F. E. Critchfierd196 pages 42s./$6.50Analytical Chemistry of the Actinide Elements by A. J. Moses138 pages 45s./$6.75The Analytical Chemistry of Thorium by D. I. Ryabchikov and E. K. Gol’braikh332 pages f5/$14.00Trace Analysis of Semiconductor Materials edited by J. P. Cali292 pagesOrganic Polarographic Analysis by P. Zuman316 pages 50s./$7.50Controlled-Potential Analysis by G. A. Rechnitz86 pages 35s./$5.00Analysis of Petroleum for Trace Elements by 0. I. Milner128 pagesInorganic Ultramicroanalysis by J. P . Alimarin and M. N. Petrikova151 pages 40s.lE6.00Analytical Chemistry of Niobium and Tantalum by R. W. Moshier284 pages 9Os./$12.75~~~Gas Analysis by Gas Chromatography by P. G. Jefrey and P. J . Kipping228 pages 70s. 1% 10.00Kinetics of Precipitation by A. E. Nielsen164 pages 4Os./$6.00Analysis of Ancient Metals by E. R. Caley188 pages 70s./$10.00Nuclear Techniques in Analytical Chemistry by A. J. Moses152 pagesOscillometry and Conductometry by E. PungorNewer Redox Titrants by J. Zyka, A. Berka and J. Vulterin256 pages 6Os./$10.00242 pages 70s./$12.00Gas Chromatography of Metal Chelates by R. W. Moshier and R. E. Severs172 pagesThe Analytical Chemistry of the Noble Metals by F. E. Beamish616 pages f6/$18.50Kinetic Methods of Analysis by K. B. Yatsimirskii176 pages 50s./$7.50The History of Analytical Chemistry by F. Szabadvary416 pages July 1966 f6/$18.50PERGAMON PRESS LTD., Headington Hill Hall, Oxfor