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This account deals with the four common species of triclad found living together in the shallow littoral zone of lakes in Britain, namely, Polycelis nigra (O. F. Muller), P. tenuis Ijima, Dugesia… Continue Reading
On the contents page of the 24 March issue, the title of the first article should read "Planetary Contamination I: The Problem and the Agreements: N. H. Horowitz, R. P. Sharp, R. W. Davies."
One of the niost iinpressive inscriptions froiii Roman Cumbria is a dedication-slab, now built into a farmhouse at Clifton, near Penrith. ' The inscription, now unfortunately badly weathered, was… Continue Reading
During the tumultuous months of 1989 the Western view that world communism was in a profound crisis seemed to have been dramatically confirmed. Hungary and Poland moved sharply towards a multi-party… Continue Reading