PH T HA LAT ES Dim ethylDiethyl ButylIs0 bu tyl DibutylAmy1 DiamylDiacetone Dihexyl2-Ethyl Hexand DioctylALCOHOLS P~OPY IALDEHYDES Acetaldehyde ACETATES $;Y’ ButyraldehydePropyl CrotonaldehydeButyl ParaldehydeAmy1 AldolACETONE DlACETlN TRlACETlNACETIC ACID ACETIC ANHYDRIDEMesityl Oxide Aceto aceticesterLACTATES EthylButyl OXA LATES Diethy IDibutylAmy1STEARATES ButylAmy1EthylButylOLEATESTARTRATES Diethy 1DibutylC I T R AT E S Tributy ITriam ylB R I T I S HINDUSTRIAL * SOLVENTS B I S O L ’ PRODUCTS O FLIMITEDWELBECK HOUSE, DOWNS SIDE, BELMONT, SURREY * TEL : VIGILANT 0133-6TAYLOR 785iiMaking a better job of it 8 8a GlWE RlR 0. 110.Tel. : LEEDS 32521.Grams : OXBROS, LEEDS.THIS REPLACEMENT WAS ANIMMENSE IMPROVEMENTThe illustration shows Oxley weldedPurifier Covers of size 40 ft.8 in. by35 ft. 9 in., -& in. sheets.The approximate weight of each cover is9 tons. 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LOWERY, M.Ed., Ph.D., D.Sc., F.1nst.P.Principal :SCIENCE DEPARTMENTHead of Department :R. W. JUKES, B.Sc., A.R.I.C., F.C.S.H.HOLNESS, M.Sc., F.R.I.C., M.I.T.I. L. FINAR, B.Sc., Ph.D.J. BOR, M.Sc.Tech., F.1nst.P.Senior Lecturer in Inorganic Chemistry :Senior Lecturer in Organic Chemistry :Senior Lecturer in Physics :Full-time Day Courses extending over 3 or 4 years areheld in preparation far the London University B.Sc.,General and Special Degrees in Chemistry, Physics, Botany,Zoology, and Mathematics ; also for A.R.I.C. and A.1nst.P.Many research investigations are in progress in theScience Department and students may become associatedwith any of these with a view to taking either the M.Sc.or Ph.D. Degree.Part-time Degree and National Certificate Courses arealso available in Science subjects.Special facilities are available for the study of industrialapplications of science, e.g., plastics, radiology, electronics,chemical engineering.The College was opened in 1938 and replaces the formerLeyton and Walthamstow Technical Colleges.The building is entirely new and the equipment up-to-date. In addition to excellent teaching accommodation,the College possesses ample social amenities, viz., concerthall with cinema and stage, swimming bath, two gymnasia,library, refectory, writing and private study rooms, andcommon rooms.Full particulars and Prospectus of classes may be obtainedon application to the Principal.VTHE POLYTECHNICRegent Street London, W .1DEPARTMENT OF CHEMISTRY & BIOLOGYHead of Department : H. LAMBOURNE, M.A., M.Sc., F.R.I.C.DAY AND EVENING COURSESB.Sc.Degree, Special and General (External), LondonUniversity .Associateship of the Institute of Chemistry (A.R.I.C.)Diploma.Intermediate Science Course in Chemistry, Botany,Zoology, and Physics, suitable for Medical, Dental,and Pharmacy students.-~ ~ ~Prospectuses, giving fullparticulars of courses, fees, etc., may be obtainedon application to the undersigned:J. C . JONES, Director oJ EducationUNIVERSITY OF ST. ANDREWS (SCOTLAND)Civlncclh: The Right Hon. The EARL BALDWIN OF BEWDLEY.Vh-Chat~elior and Principal: SIR JAMES COLQUHOUN IRVINE.Dean of the Facuiiv of Science: Professor ROBERT TAMES DOUGLAS GRAHAM.Rector: Air Vice-Marshal SIR DAVID MUNRO.- Secretary bf h e University: DAVID JOSEPH BURTON RITCHIE.The University confers the following Degrees, all open to men or women:B.Sc.(Ord. and Horn.), Ph.D., D.Sc.SESSION 1946-47 opens 8th October, 1946. The curriculum for Pure Sciencemay be taken in St. Andrew or Dundee; the curriculum for Engineering inDundee. Application for admission to the Faculty should be sent to the Dean notlater than 30th June.Residential Entrance Scholarships for Men and Entrance Bursary Competitions.-June annually. Entries due 1st May. United College, St. Andrews.-ResidentialEntrance Scholarships-Eight of LIOO per annum tenable for 3 or 4 years. Bursariesopen to Science Students-Four of € 5 0 , one of &40, two of €30, six of lesser amountsfrom L25 to L14, tenable for 3 or 4 years. University College, Dundee-Bursaries opento Science Students-Ten of from &50 to l 3 0 , tenable for 3 or 4 years.Pdmfnary Examinations.-March and August.Entries due 5th February and 19thJuly.Post-Graduate Study and Research in Chemistry, Mathematics, Astronomy, NaturalPhilosophy, Zoology, Botany, Geology, Anatomy, Physiology, Engineering. Provisionmade for duly qualified Research Workers. Students of the University are eligible forCarnegie Trust Scholarships and Fellowships and for other Scholarships, Fellowships andGrants.Chemistry Resear& Students should communicate with Professor Read, United College,or Professor Wynne- Jones, University College, Dundee.Residence Hall8 for Men Students a t St. Andrews.-St. Salvator’s Hall, Dean’s Court,Swallowgate, St. Regulus Hall, Kennedy Hall.Full information may be obtained from the Secretary of the University, St.Andrews,or the Dean of the Faculty of Science, Bute Medical Buildings, St. Andrew.GLYCERINEThe Purest Qualityo n t h e M a r k e tChemically Pure B.P.0 Pale Straw 0Produced by& C O M P A N Y , L I M I T E DNewcastle, Manchester and LondonT H O M A S H E D L E YiTHEROYAL INSTITUTE OF CHEMISTRYOF GREAT BRITAIN AND IRELANDThe Institute of Chemistry was established in 1877 to providethe Government and the public with the means of recognis-ing those who have been properly trained and proved to becompetent to practise chemistry as a profession. 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