This is an exciting new scientific publi cation. It is timely and welcome as there are few books of this stature published in this discipline. Furthermore, it is up to date and readable. It is well researched, excellently presented and ranks with earlier books in this disci pline such as Horton (1 9 5 9), Urick (1967 and 1975), Clay and Medwin (1 977), and MacLennan and Simmonds (1 992). These books have been widely used and cited and this reviewer is con fident that An
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