PAPERS
TO BE PUBLISHED IN FUTURE ISSUES M. RAJA RAO and C. VENKATA RAO : Flooding rates in packed liquid extraction towers R. A. SEHR : The thermal conductivity of catalyst particles F. J. ZUIDERWE~ and A. HARMANS : The influence of surface phenomena on the performance of distillation columns A. S. SAID : The non-homogenous chromatographic column F. H. GARNER and R. B. KEEY : Mass-transfer from single solid spheres -I. Transfer at low Reynolds numbers R. B. KEEY and F. H. GARNER : Mass-transfer from single solid spheres -II. Transfer in free convection G. H. P. BRAS : The graphical determination of changes in the gas phase due to simultaneous heat and mass transfer J. J. CARBERRY : Some remarks on chemical equilibrium and kinetics in the nitrogen oxides-water system T. MIZUSHINA, N. HASHIMOTO and N. NAKAJIMA : Design of cooler condensers for gas-vapour mixtures J. BUITEN : The final stage in the removal of the lighter component of a binary mixture by batch rectification I. SORGATO : Some properties of the activity coefficient P. BORTOLINI : Kinetics of water-gas conversion reaction G. BOYE-CHRISTENSEN and S. G. TEIWESEN : The action of surface active agents on mass transfer in libuid-liquid extraction T.' MIZUSHINA, J. OISHI ahd N. HASHIMOTO : Method of calculation for the absorption accompanied with heat liveration A. ACRIVOS : On the rate of mass transfer from a gas to a moving liquid film R. ARIS and N. R. AMUNIXON : Statistical analysis of a reactor. Linear theory C. J. HOOGENDOORN : Gas/liquid flow in horizontal pipes EDITORIAL ANNOUNCEMENT In the interests of keeping readers currently informed on the significant papers being published in the U.S.S.R. of interest to chemical engineers, arrangements have been made for a competent editor with a good knowledge of Russian to scan the Soviet literature and list the authors and titles of articles which might be of advantage to our readers. Translations or photostats of the article can be supplied on request by the Pergamon Institute (a non-profit making foundation) at a nominal charge. All orders for translations of Russian articles listed should be addressed to the Administrative Secretary of the Pergamon Institute at either 4 Fitzroy Square, London, W.l., or 122 East 55th Street, New York 22, which ever is more convenient.