Does anyone by any remote chance have a copy of this old book they could lend me please? Chiang,CL. (1968). Introduction to stockastic(?) processes in biostatistics. Wiley Apologies for the ? but I can't read the writing! Thanks for looking Kathy Kathy Atkinson - Librarian Manchester Health Authority Gateway House Piccadilly South Manchester M60 7LP Tel: 0161 237 2544