The late W. G. Clarke recorded the occurrence of palæolithic implements in thirty Norfolk parishes, a fact which suggests that the county is exceptionally rich in implementiferous gravels. On detailed examination of the records it is seen that the great mass of the finds lies in two widely separated districts. In the extreme south-west the valleys of the Thet and Little Ouse have long been famous among collectors, and large numbers of specimens were obtained at a time when the making of the Fenland roads caused a demand for the gravel of the district; the fine collections in the Norwich and Thetford Museums testify to the number and beauty of the specimens obtained there. In more recent years the centre of interest has shifted to the north-east, where the hopes, first raised by the discovery by Mr. A. C. Savin of a fine hand axe (Geology of the Country Around Cromer, p. 130) in 1878, have at last been fulfilled by Mr. Reid Moir's recognition of a Chellian workshop on the foreshore at Cromer (“The Great Flint Implements of Cromer,” Harrison, Ipswich, and Journal of the Royal Anthropological Institute, LI., 1921, p. 385–418). Apart from these finds, isolated discoveries of importance have been made from time to time, notably the beautiful implement found by Mr. W. R. R. Spelman on the beach at Eccles (P.S.E.A. II., I., p. 156), the Palling platessiform implement discovered by Mr. Randall Johnson, the Chellian side chopper from the Till at Sidestrand by the writer, and Acheulean hand axes from Runton cliff gravels by Mr. G. Maynard. These have all been carefully described and figured by Mr. J. Reid Moir (“Man,” April 1926; J.R.A.I. LI., p. 399; Antiquaries' Journal, April 1923, and P.S.E.A., IV., 1., p. 126; “Nature,” Aug. 16, 1924). A few miles inland at Gresham, the patient and persistent work of Mr. J. Cox has produced a number of finds of the first importance, especially those described and figured in the Proceedings (P.S.E.A. I., III., p. 380, Plate XCVIII; III., II., p. 317, Fig. 78; I., I., p. 118, and I., II., p. 236). Apart from these two border districts, the records refer mainly to isolated specimens, mostly surface finds. Dr. C. B. Plowright reports implements from a pit at Tottenhill, near King's Lynn (P.S.E. A. I., I., p. 118), whilst a fine hand axe of La Micoque type was found by a schoolboy at Salhouse.