During the latter part of the summer of 1878 I heard from Mr. Griffith, of Christ's College, Cambridge, that large bones were being met with in a “coprolite-pit” at Barrington, on land belonging to Trinity College. Accompanying him there, we found the workmen had reserved for him fragments of three canines of a Hippopotamus, with some of the molars, a tooth of Rhinoceros, and other specimens. Further discoveries were made; and in September, when the work had been discontinued for harvest, I went there with two friends, and, armed with no tool better than a knife~ obtained an excellent specimen of an incisor of the Hippopotamus. Upon this I advised Mr. Keeping, of the Woodwardian Museum, to get permission to commence a regular search for fossils, which, term not having commenced, and the Professor being in the country, he took upon himself the responsibility of doing, and through the kindness of Messrs. Smith and Badcoek, the lessees of the coprolite-works, began a systematic exploration of the deposit. This was carried on after the Professor's return under his authority, and has been rewarded with great success.