Flow Visualization. By W OLFGANG M ERZKIRCH . Academic, 1987. 260 pp. $49.00. Flow Visualization IV. Edited by C LAUDE V éRET . Hemisphere/Springer, 1987. 918 pp. DM 298.00. Measurement and Control in Liquid Metal Processing. Edited by R. J. M OREAU , Martinus Nijhoff, 1987. 204 pp. Dfl 155.00 or US$ 75.00 or £56.50 Numerical Recipes in C: The Art of Scientific Computing. By W. H. P RESS , B. P. F LANNERY , S. A T EUKOLSKY and W. T. V ETTERLING . Cambridge University Press, 1988. 735 pp. £27.50. Computational Fluid Dynamics. By T. K. B OSE . Wiley Eastern, 1988. 214 pp. £18.95 Finite Elements in Fluids, Vol. 7. Edited by R. H. G ALLAGHER , R. G LOWINSKI , P. M. G RESHO , J. T. O DEN and O. C. Z IENKIEWICZ . Wiley, 1988. 314 pp. £49.95.