Collocation Techniques for Modeling Compositional Flows in Oil Reservoirs. By M YRON B. A LLEN . Springer, 1984. 210pp. DM 38.00 (soft cover). Convection in Liquids. By J. K. P LATTEN and J. C. L EGROS . Springer, 1984. 679. DM 180. Mesoscale Meteorology – Theories, Observations and Models. Edited by D. K. L ILLY and T. G AL -C HEN . D. Reidel, 1983, 781 pp. Dfl. 220.00. Low Reynolds Number Flow Heat Exchangers. Edited by S. K AKAC¸ , R. K. S HAH and A. E. B ERGLES . Hemisphere, 1983. 1016 pp. DM 310.00. Heat and Mass Transfer in Rotating Machinery. Edited by D. E. M ETZGER and N. H. A FGAN . Hemisphere, 1984, 713 pp. DM 198.00.