The object of this paper is to give an account of the various diggings which have been carried on beneath the base of the Red Crag of Suffolk by means of money grants from the Royal Society of London, and to accurately describe and figure the further flint implements of man which have been discovered in the sub-crag detritus bed, since the appearance of Sir Ray Lankester's memoir in the Philosophical Transactions (series B., Vol. 202, pp. 283–336) and to show by such a description that a series of flaked flints have now been recovered constituting a true Pliocene human “culture.”

An account will also be given of the characteristics of these newly-discovered implements, and the conclusions which may be legitimately drawn from them regarding their past history and its bearing upon the deposit in which they are found.

The excavations which have been conducted and which have resulted in these new discoveries being made, extended over the period intervening between April, 1912, and November, 1913, and were carried out at the following places:—Tattingstone Hall Farm, Tattingstone; Thorington Hall, Wherstead; The Back Hamlet, Ipswich; Messrs. Bolton and Laughlin's brickfield, Ipswich; The Nursery, Martlesham; Pettistree and Sutton Hall Farms, near Woodbridge; and the Valley Farm, Boyton, near Woodbridge.