Three-quarters of a mile N. by W. of the Railway Station at Denham, Bucks., a small rounded promontory juts out into the Valley of the Colne. The Geological Survey map shows this promontory as composed of Reading beds, capped by Glacial Gravel, part of a spread covering all the higher ground between the rivers Misbourne and Colne. In the G. S. memoir on sheet No. 255, the following observation is made:—“In the large embayment between the Thames and the Colne, the Glacial Gravel appears to have been subsequently resorted in places.” A well-known example of this occurs at Croxley Green, 4¼ miles N. by E. of this site. It has been fully described by Messrs. R. A. Smith and H. Dewey (Archæologia, vol. lxvi., pp. 195–214).

Late last autumn I heard that palæoliths had been picked up in the neighbourhood of Denham. On going there to investigate, I found that a cutting of over 200 yards, for a new road running N. and S., had been made through the promontory. Unfortunately the excavation work at this spot was practically finished, and both sides of the cutting had been battered.