An examination of sections of the silicified wood from the King's Arms Pit, Tiptree, revealed at once that the structure was of the Dadoxylon type, and the absence of growth rings strongly suggested affinity with the Palaeozoic woods included in that genus, many of which are allied to Cordaites rather than to the araucarians. Among known silicified woods, a close comparison was possible only with those from the Corley (Enville) Group of the Midlands, now regarded as probably Upper Carboniferous, and not Permian.