During a visit to Crayford in April, under the guidance of my friend Mr. Dawkins, I obtained a worked flint from Slades Green Pit. The discovery seems worth recording, on account of the presumed early age of the deposit in which it occurred. Mr. Evans has kindly looked at the specimen, and considers it decidedly to have been worked, so that there is no room for doubt upon that head. I picked the implement out of a band of rounded flint gravel, lying beneath the sandy stratum which contains abundance of shells, and among them the Corbicula (or Cyrena) fiuminalis and Unio litoralis, together with many mammalian remains.