Journal of Fluid Mechanics Volume 323 25 September 1996 D. R. Webster, D. B. DeGraaff & J. K. Eaton Turbulence characteristics of a boundary layer over a swept bump page | P. S. Karasso & M.G. Mungal Scalar mixing and reaction in plane liquid shear layers a R. S. Johnson A two-dimensional Boussinesq equation for water waves and some of its solutions 65 Z.Rusak Axisymmetric swirling flow around a vortex breakdown point 79 D. P. Wall & S. K. Wilson The linear stability of channel flow of fluid with temperature- dependent viscosity X. Wu, P. A. Stewart & S. J. Cowley On the weakly nonlinear development of Tollmien—Schlichting wavetrains in boundary layers R. A. Antonia, Y. Zhu & H.S. Shafi Lateral vorticity measurements in a turbulent wake M. Siegel, S. Tanveer & W.-S. Dai Singular effects of surface tension in evolving Hele-Shaw flows D. G. Lynch, S. L. Waters & T. J. Pedley Flow in a tube with non-uniform, time-dependent curvature: governing equations and simple examples J. R. Lister & P. J. Dellar Solidification of pressure-driven flow in a finite rigid channel with application to volcanic eruptions K. C. Hall & S. R. Hall Minimum induced power requirements for flapping flight J. Vanneste Rossby wave interaction in a shear flow with critical levels R. Fernandez-Feria Viscous and inviscid instabilities of non-parallel self-similar axisym- metric vortex cores A. V. Bunyakin, S. I. Chernyshenko & G. Yu. Stepanov _Inviscid Batchelor-model flow past an airfoil with a vortex trapped in a cavity M. A. Gilbertson & J.G. Yates The motion of particles near a bubble in a gas-fluidized bed P. A. J. Mees, K. Nandakumar & J. H. Masliyah Secondary instability of flow in a curved duct of square cross-section REVIEWS Mechanics of Mixtures, by K. R. Rajagopal & L. Tao The Centenary of a Paper on Slow Viscous Flow by the Physicist H. A. Lorentz, edited by H. K. Kuiken INDEX TO VOLUME 323 UNIVERSITY PRESS JFLSA7 323 1-413 (1996) 0022-1120 © Cambridge University Press 0022-1120(199609)323; 1-6