Bob was working at Cambridge library on the Madden broadside collection (about two years before he left for the States) when he discovered a handwritten poem, which he had identified by the library staff as possibly an unpublished piece by Donne.
The poem was a matter of debate in the quality press (especially the Sunday Times, I seem to remember) which revolved around whether Donne was the author or not.
Whenever the debate died down, a letter would appear by Bob, prodding it back to life again
I thing it went on for about a year - can't remember if there ever was a conclusion to it.
Jim Carroll