The excavation which has yielded the flint implements to be described in this paper is situated on the farm occupied by Mr. W. Wilson, of Darmsden Hall, Suffolk, a place about eight miles north-west of Ipswich. The pit occurs at a height of about 180 ft. O.D., and on the edge of the western slope of the valley of the Gıpping. (See Ordnance Survey Map, Suffolk (East), Sheet LXVI., 5, Field 5a.) The deposit in which the pit is sunk belongs evidently to the plateau series, and was laid down prior to the complete erosion of the Gipping Valley. The exposed section shows 6 in. surface humus and about 8 to 10 feet of deposit, composed almost exclusively of black Tertiary pebbles (such as occur in the Woolwich and Reading beds) mixed with some amount of fine sand, which in places shows signs of stratification. A few chalk flints, somewhat abraded, occur with the pebbles, the whole resting upon fine stoneless sand. No fossils of any sort have been met with in ihe excavation, and the author is not familiar with any other deposit of a similar nature in East Suffolk.