Mathematical Models in Applied Mechanics. By A. B. T AYLER . Clarendon Press, 1986. 280 pp. £25 (hardback) or £12.50 (paperback). The Ocean Surface: Wave Breaking, Turbulent Mixing and Radio Probing. Edited by Y. T OBA and H. M ITSUYASU . Reidel, 1985. 586 pp. Dfl. 210, US $69, £58.25. Civil Engineering Hydraulics. By J . R. D). F RANCIS and P. M INTON . Arnold, 1984. 387 pp. £12.75 (paperback). Hydraulics in Civil Engineering. By A. J . C HADWICK and J . C. M ORFELT . Allen & Unwin, 1986. 492 pp. £35 (hardback) or £12.95 (paperback). Solar System Magnetic Fields. Edited by E. R. P RIEST . Reidel, 1985. 290 pp. £29.95 (cloth) or £15.25 (paperback). Emst-Becker-Gedachtnis-Kolloquium. Technische Hochschule Darmstadt, 1986. 231 pp.