the death of A.D Bradshaw late of Liverpool University was recently announced, at the age of 82. His notable area of work as a biologist and ecologist was in the evolution of tolerance of plants to heavy metal contamination. This led on to much work on the revegetation of spoil tips such as lead mines. Much of this work was at a time of less enlightenment as to the value of mining archaeology, and for instance incorporated the destruction of 19thC engine houses and other structures on Shropshire lead mines. I have seen a paper on this work, with particular attention to trial work on Welsh lead mines, in the Mining Magazine, probably early 1980's. If anyone has details of other papers relating to his work I would be grateful for details. Alasdair Neill.