Sir, - The letter from Kenneth Nicholls of the Department of History, UCC (June 27th) about the history of the native Irish pine was of great interest to us, as we have evidence of the native pine here in the Bray Heritage Centre.In 1980 three students from Aravon School, Bray - Christopher Ryder, Mark Brett and Thomas Rolfs - studied at low tide the remains of a pre ice-age forest just north of Bray. They received a runner up prize for their project in the Aer Lingus Young scientist Exhibition of that year.The result of their research is now on permanent exhibit in the Bray Heritage Centre. We have Scots pine cones and estuarine mud, carbon dated to 4,500 BC. For anyone interested in seeing these pine cones, the centre opens Monday to Friday, 9.30 a.m. - 1 p.m. and 2 p.m. - 5 p.m.; and on Saturday 10 a.m. - 1 p.m. and 2 p.m. - 4 p.m. - Yours etc.,Kathleen KinsellaBray Heritage Centre,Main Street,Bray,Co Wicklow.