'236 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS 13. -14. -15. 16. 17. cury along a horizontal tube. This gives a constant pressure and the advantage that dry air or air of pre-determined humidity can be used for the determination. The apparatus is particularly quick and easy to use. Exhibited by Mr. C. Pugh. MECHANICAL BRUSHING MACHINE. Human teeth, mounted in holders, are held in nylon troughs while being brushed with experimental toothpastes. Surface examina- tion by microscopy of the tooth surface before and after this brushing treatment yields valuable information regarding the polishing power and abrasive quality of these pastes. Exhibited by Dr. D. J. Alexander. SPINNING CELL ATTACHMENT FOR THE TRISTIMULUS COLORIMETER. This attachment has been designed to provide a method for measur- ing the colour of a composite surface, e.g. either a piece of fabric or a sample of talcum powder, with the tristimulus colorimeter. The specimen is placed in a cell which Is rotated at 200 r.p.m. in front of the annular photo-cell of the instrument. Exhibited by Dr. D. J. Alexander. APPARATUS FOR THE AUTOMATIC DETERMINATION OF BULK DENSITY. Exhibited by Dr. A. W. Middleton. SACHET TESTER. The instrument was designed to examine shampoo sachets for comparison of the mechanical strength of various laminates (especially to evaluate sealing efficiency) and to permit control of delivered reels. It comprises an anvil under controllable pressure on one side from a hydraulic jack and on the other side connected to gauges, fitted with pointers indicating the pressure at which failure occurs. Exhibited by Mr. N.J. Van A bbe. TILTING TABLE. The apparatus was constructed as a modification of Train's tech- nique (J. Pharm. Pharmacol. 1958: X Supp. 127 T) for measuring the repose angle of powders. The technique provides information on the flow properties of powders and the lubricant effect of additives. Exhibited by Mr. N.J. Van Abbe.

SOCIETY OF COSMETIC CHEMISTS OF GREAT BRITAIN 237 Election of Honorary Members A Special General Meeting was held at the Royal Society of Arts, John Adam Street, London, W.C.2, on Friday, 12th February 1960. 42 Members and Associates were present. The Chair was taken by the President, Dr. R. H. Marriott, who called on Dr. H. W. Hibbott to propose the motion before the meeting. Dr. H. W. Hibbott then proposed that: Maison G. de Navarre, PmC., B.S., M.S. be elected an Honorary Member of the Society of Cosmetic Chemists of Great Britain. Mr. J. B. Wilkinson seconded the motion. It was then put to the vote, when it was carried unanimously. Another Special General Meeting was held at the Royal Society of Arts, John Adam Street, London, W.C.2, on Thursday, 7th April 1960. 53 Mem- bers and Associates were present. The Chair was taken by the Vice-President, Dr. H. W. Hibbott, who proposed the motion that: R. H. Marriott, D.S½., F.R.I.C., be elected an Honorary Member of the Society of Cosmetic Chemists of Great Britain. Mr. J. Pickthall, seconding the motion, said that it gave him great pleasure to do so, as he had known Dr. Marriott for many years and knew well how hard he had worked for the Society and how well he had represented it internationally. The motion was then put to the vote, when it was carried unanimously. 1960 Summer Conference The 1960 Summer Conference organized by the Society will be held in London in August, and the following Programme has been arranged (there are now altogether eight lectures). Participation is permitted only when application has been made on the appropriate form and the fees duly paid. Each participating member will be entitled to introduce one lady guest, the only proviso being that the accommodation available for the Dinner is limited to 150. The application form must be used and returned together with a remittance of the appropriate fees to the Honorary Organizer, A. Herzka, c/o Pressurized Packaging Con- sultants Ltd., Ashbourne House, Alberon Gardens, London, N.W.11. Remittances must be made payable to "A. Herzka, Conference Account". The closing date for applications is 30th June 1960. Applications should, however, be returned as soon as possible in order to facilitate the clerical work of the Organizer. Late application may prevent the despatch of the pre-prints of the lectures and the allocation of a place at the Dinner.