An interesting discovery has just been made in this district. A short time since some workmen from Cumnor brought to the Museum a basketful of bones which they said they had found in digging the clay at the brick works, now in course of large extension, at Cumnor Hurst, three miles west of Oxford. On cleaning the specimens, the characteristic vertebræ and teeth of Iguanodon were recognized. A large number of the vertebræ are entire, but the jaw is in fragments, with many teeth, however, in position. The skull is wanting, except a small fragment. One of the feet, with the claws, is almost complete. The larger bones are almost all broken, buty we hope to be able to reunite many of the fragments, as there is reason to belive that the skeleton was entire or nearly so. The smaller bones and the extremities of the larger bones are in a beautiful state of preservation. It is a smaller animal than the Wealden Iguanodon Mantelli, but whether owing to age or difference of species remains to be determined. It seems to be indicate a different species, with smaller and more delicately-formed bones.