On the evening before I left Cambridge last term, I was informed by a man who brings me fossils, that some new coprolite diggings had been opened in the Fens. I was unfortunately unable to visit the workings then, but since my return to Cambridge, I have explored them in company with Mr. Moore, of St.Catherine's College. The workings are situate about a mile from Upware, which lies about twelve miles from Cambridge, and seven from Ely.