Grae Worster studied Mathematics at Cambridge University and gained a PhD in Geological Fluid Mechanics. He was an Instructor in Applied Mathematics at MIT, a Research Fellow at Trinity College, Cambridge and an Assistant Professor at Northwestern University before finally returning to Cambridge University in 1992, where he is Professor of Fluid Dynamics. Within the Institute of Theoretical Geophysics, his research encompasses the dynamics of buoyancy-driven flows associated with solidification and melting.

• Preface; 1. Building intuition; 2. Parallel viscous flow; 3. Viscous gravity currents; 4. Equations of flow; 5. Interactions between linear flows; 6. Flows round rigid objects; 7. Waves and instability; Bibliography; Index.

"The accounts collated in this book...is encouraging, not only for the survival of the great apes, but the many other organisms that share their habitat". Peter Moore, Bulletin of the British Ecological Society