Energy considerations in the selection of centrifugal pumps for use in the waste water industry, D.J. Williams; hydraulic optimization of a modular design system for multistage pumps, A. Nicklas; matching the system to the pump, A.J. Semple; thermodynamic testing - an independent view, E.W. Thorne and A.N. Neal; pump efficiency project in Thames Water, J.C. Drake and M. Sims; high efficiency drives reduce pumping costs, H. Falkner; pump drives - some practical considerations, B. Hill; integrated variable speed pump sets for building services, R.E. Burke; reducing pumping costs for industrial cooling and service water, G. Andrews.