To those who assisted me with helpful hints yesterday, thank you. I finally got the cross-referencing working correctly after examining my overall structure in the light of those hints. I think that what was preventing things from working properly, was that I had all the entries for a particular chapter enclosed in a setup. I won't go into why I had adopted that approach, but in restructuring things far more sensibly, I was able to do away with the \start\...\stop setups. I think this is what was causing the problem. Julian