The discovery with which this paper deals was made by me in August, 1908. In the early part of that month, while walking in Upper Dovercourt, I noticed a gravel pit being excavated in a field overlooking the Stour Valley, and thinking it was a likely spot to find river drift implements, I interviewed the workmen, and found that though they knew nothing of humanly-flaked flints, they had noticed and preserved a number of bones, which, however, had unfortunately been sold to a local rag and bone merchant. The occurrence of these bones made me feel confident that flint implements must be associated with them; so I took a representative series of Palæolithic implements for the men to see, and explained to them that it was such things I wanted them to look for. I also took the opportunity of examining the stone heaps in the pit, and was fortunate enough to discover two Moustier-like implements, which, though of no great importance, confirmed me in my opinion as to the implementiferous nature of the gravel bed.