Thur 7.30pm Royal Society of Antiquaries of Ireland, 63 Merrion Sq. S. Hair hurling balls: review, research and scientific investigations, Clodagh Doyle. Thur 8pm Kilmacud Stillorgan Local History Society, Glenalbyn Sports Club. The Goodbodys and Perrys of Obelisk Park, Stillorgan, Rob Goodbody. Adm. €3.