64 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS SYMPOSIUM ON POWDERS A Symposium on Powders, jointly organised by the Pharmaceutical Society of Ireland and the Society of Cosmetic Chemists of Great Britain, will be held at Jury's Hotel, Dublin, Eire, from 16th-18th April 1969. Participation is permitted only when application has been made on the appropriate form, and the requisite fee duly paid. This is f18 for each participant who is a member of the Pharmaceutical Society of Ireland or a member of one of the Societies of Cosmetic Chemists affiliated to the I.F.S.C.C. The registration fee for non-members is f21. Registration forms giving all details are available from the General Secretary, Society of Cosmetic Chemists of Great Britain, 56 Kingsway, London, W.C.2. The closing date for registrations is 18th March 1969. Participants travelling from the U.K. and Europe are able to avail themselves of travel at reduced rates. Details will be sent with the application forms. PROGRAMME 14.30 1. Wednesday, 16th April 1969 "The particle size analysis of pigments (and opaque particles) with the Qantimet" M. J. Smith, Ph.D., B.Sc., A.R.C.S., D.I.C. (Imperial Chemical Industries Ltd., Welwyn Garden City). 15.00 9,. "Very fine particles" E. A. Smith, B.Sc. (Pilamec, Baynhams, Coleford, Glos.). 15.30 3. "Surface area measurements in compressed powder systems" N. A. Armstrong, B.Pharm., Ph.D., M.P.S. (Welsh School of Pharmacy, Welsh College of Advanced Technology, Cardiff). 16.00 TEA 16.20 4. "Particle size effects in the differential thermal analysis of solid materials" J. E. English, Ph.D., M.Sc.(Eng.), B.Sc.(Eng.) (King's College, London). 16.50 5. "The kinetic angle of repose of powders" J. Kelly, B.E. (Chem.), A.M.I.Chem. E., M.I.C.I. (University College, Dublin). 18.30 DINNER 20.00 SOCIAL MIXER Thursday, l?th April 1969 09.15 6. "Flow properties" J. C. Williams, B.Sc., F.Inst. P. (Bradford University, Bradford) 09.45 7. "The effect of glidant addition on the flowability of bulk particulate solids" T. M. Jones, B.Pharm., Ph.D., M.P.S., A.R.I.C. (University of Nottingham, Nottingham). 10.15 8. "Some aspects of the flow of particulate materials from hoppers" J. E. P. Miles, B.Sc., Ph.D., D.I.C. (Warren Springs Laboratory, Stevenage) 10.45 COFFEE 11.05 9. SPECIAL LECTURE "The cosmetic industry of Ireland" Liam St. J. Devlin, M.Sc., F.R.I.C., F.I.C.I. (M. Arkins, Ltd., Cork). 13.00 LUNCH

SOCIETY OF COSMETIC CHEMISTS OF GREAT BRITAIN 65 14.30 10. 15.00 15.30 16.00 16.20 16.50 "Dust explosion hazards" Professor H. E. Rose, D.Sc., Ph.D., F.I.C.E., F.i.Mech. E., M.I.Chem. E. (King's College, London). 11. "The method of irreversible thermodynamics applied to an infra-red drying process" R. W. Maxwell, B.Sc., Ph.D. (University of Leicester, Leicester). 12. "Blending operations" Professor D.C. Freshwater, B.Sc., Ph.D., D.L.C., M.I.Chem. E. (University of Technology, Loughborough). TEA 13. "The effects of granule properties on the pore structure of sucrose and lactose tablets" A. B. Selkirk, B.Sc., and D. Ganderton, B.Pharm., Ph.D., M.P.S. (University of Strathclyde, Glasgow). 14. "Some aspects of handling powder in mechanical equipment" L. Bates, M.I.Mech. E. ( Faiway Engineering Co., Ltd., Worsley, nr. 3•oeanchester). 19.00 for 19.30 BANQUET 09.30 Friday, 18th April 1969 15. "Compressed tablets from powders---The direct approach" J. L. Livingstone, B.Sc., F.P.S. (Sterling Winthrop Research and Development Division, Newcastle-upon-Tyne). 10.00 16. "Sampling and assessment of powder mixtures for cosmetics and pharma- ceuticals" J. A. Hersey, B.Pharm., Ph.D., M.P.S. (School of Pharmacy, London). 10.30 COFFEE 11.00 17o "Powder aerosols" A. Herzka, B.Sc., F.R.I.C. (Pressurized Packaging Consultants, London). 11.30 18. "The physical characteristics of powders influencing absorption" K. Marshall, B.Sc., M.P.S. (University of Bradford, Bradford). 12.30 LUNCH AFTERNOON--Works visits SYMPOSIUM ON GUMS AND THICKENERS A Symposium on Gums and Thickeners will take place in Oxford during the week beginning 13th October 1969. Programme Secretary Mr. K. M. Godfrey, c/o the Society's office, 56 Kingsway, London, W.C.2. SYMPOSIUM ON PERFUMERY A Symposium on Perfumery, organised joinfly with the British Society of Perfumers, will take place in Folkestone, Kent, from 131h-15th April 1970. Programme Secretary Mr. D. E. Butterfield, I.F.F. (Great Britain), Ltd., Crown Road, Southbury Road, Enfield, Middx. SYMPOSIUM ON CLEANSING A Symposium on Cleansing will take place in Bournemouth, Hants., during November 1970.