Book reviews: Hengeveld,R. 1990: Dynamic biogeography. Cambridge: Cambridge University Press. xiv + 250 pp. £30.00,US$54.50 cloth

Birks, H.J.B. 1976: The distribution of European pteridophytes a numerical analysis. New Phytologist 77, 257-87.

Gauch, H.G. , Jr. 1982: Multivariate analysis in community ecology. Cambridge: Cambridge University Press.