Though the oldest English Whales yet named are found in the Crag, Prof. Sedgwick, a quarter of a century since, obtained from Ely some anchylosed cervical vertebræ evidently Cetacean. The fossil was found at Roswell Pit in the Boulderclay, but the Professor writes, ‘I have not the shadow of a doubt that it was washed out of the Kimmeridge (or the Oxford) Clay, for both clays are near at hand. In condition it is exactly like the bones from those clays; and is utterly unlike the true Gravel bones, whether in the dry Gravel, or the Till.’* This is unmistakeable, for the specimen is mineralised with phosphate of lime; and so could have been derived from no deposit newer than the Crag.