The Handbook of Environmental Chemistry. Volume 1, Part E. The natural environment and the biogeochemical cycles. Ed. O. HUTZINGER .‐192 pp., 66 figs., 4 tabs. Berlin, Heidelberg, New York, London, Paris, Tokyo, Hong Kong: Springer Verlag 1990. ISBN 3‐540‐15548‐1 Springer Verlag Berlin, Heidelberg, New York; ISBN 0‐387‐15548‐1 Springer Verlag New York, Berlin, Heidelberg. DM 128‐.