Book reviews : Fægri,K. and Iversen,J. 1989: Textbook of pollen analysis,fourth edition. This edition by K. Fægri,P.E. Kaland and K. Krzywinski. Chichester: John Wiley & Sons. x + 328 pp. £51.00 cloth. (Additional copies of Chapter 12,'Which plant? Identification keys for the northwest European pollen flora',available price £5.00.)

Bennett, K.D. 1990: Pollen counting on a pocket computer. New Phytologist 114, 275-80.

Birks, H.J.B. and Birks, H.H. 1980: Quaternary palaeoecology. London : Edward Arnold.

Clark, R.L. 1982: Point count estimation of charcoal in pollen preparations and thin sections of sediments. Pollen et Spores 24, 523-35.

Clymo, R.S. and Mackay, D. 1987: Upwash and downwash of pollen and spores in the unsaturated surface layer of Sphagnum-dominated peat. New Phytologist 105, 175-83.

Dimbleby, G. 1985: The palynology of archaeological sites. London: Academic Press.

Garbett, G.G. 1981: The elm decline: the depletion of a resource. New Phytologist 88, 573-85.

Godwin, H. 1975: The history of the British flora. Cambridge: Cambridge University Press.

Moore, P.D. and Webb, J.A. 1978: An illustrated guide to pollen analysis. London: Hodder and Stoughton.

Patterson, W.A. , Edwards, K.J. and Maguire, D.J. 1987: Microscopic charcoal as a fossil indicator of fire . Quaternary Science Reviews 6, 3-23.